System.FormatException: Input string was not in a correct format.

Is this a bug or am I going crazy??
WILL NOT WORK: DateTime.Now.ToString("h")
THIS ONE WILL THOUGH: DateTime.Now.ToString(" h")
But that space gets put in front of the hour.
Anything with "h" will work, as long as it's not by itself ??Shouldn't it be "hh" ?

"hh" returns the hour with a zero in front if less than 10. "h" is supposed to return the hour without the zero.
DateTime.Now.ToString(" h")
that works, but it won't work if the space is not in front of the h.
Have you tried using string.Format to see if it gives you the same results?
Here's a good reference for the format strings:
http://www.stevex.org/CS/blogs/dottext/articles/158.aspx
If I think of anything else, I'll let you know.

M$ doesn't seem to want you to know the current hour without the 0 in front of it.
I triedString.Format("{0:h}", DateTime.Now) and it has the same problem that theDateTime.Now.ToString("h") method has.
For some reason, you cannot use "h" all by itself. Luckily the way I'm using it allows me to leave it as " h" (with a space in front).
I'm using it in a JavaScript file like so:
var curH = <%= DateTime.Now.ToString(" h") %>;
So, the JavaScript removes the space for me.
My guess is it's a bug. Thanks for you help anyways, but I'm not going to worry about it.

northflacomps wrote:

Is this a bug or am I going crazy??
WILL NOT WORK: DateTime.Now.ToString("h")
THIS ONE WILL THOUGH: DateTime.Now.ToString(" h")
But that space gets put in front of the hour.
Anything with "h" will work, as long as it's not by itself ??

Actually, that behaviour appears to be "by design" and is documented in the MSDN help.
"DateTimeFormatInfo Class... Only format patterns listed in the second table above [which is the table with h and H and so on] can be used to create custom patterns; standard format characters listed in the first table [which is a table with the abbreviation codes such as T => Long Time Pattern] cannot be used to create custom patterns. Custom patterns are at least two characters long"
It appears that since the standard patterns are sometimes single-characters in length, they decided to force custom patterns to be at least 2 characters in length, to avoid collisions and ambiguity. And so on.
For padding, when the desired custom format pattern is only one character long, they apparently want one to use the "%" sign.
Here is some sample code.

PrivateSub TestFormatStringButton_Click( _
ByVal senderAs System.Object, _
ByVal eAs System.EventArgs _
)Handles TestFormatStringButton.Click

'RTE: "Input string was not the correct format".
'Me.Response.Write(DateTime.Now.ToString("h"))

'RTE: "Input string was not in a correct format".
'Me.Response.Write(DateTime.Now.ToString("H"))

'RTE: "Format specifier was invalid".
'Me.Response.Write(DateTime.Now.Hour.ToString("H"))

'This works.
Me.Response.Write(DateTime.Now.ToString("%h"))

EndSub

HTH.
--Mark Kamoski


http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vblr7/html/vafctFormat.asp
h
Displays the hour as a number without leading zeros using the 12-hour clock (for example,1:15:15 PM). Use%h if this is the only character in your user-defined numeric format.
Thanks for that information. I looked at MSDN for the DateTime structure but didn't see anything about the "%". Seems kinda dumb to me.

System.FormatException: Input string was not in a correct format.

Strange error mblè mblè :)

Dim SQL = "SELECT confermato, confrndnum FROM utenti WHERE confermato = 'false' AND confrndnum = " & Qs
Dim RsCommand = New OleDbCommand(Sql, Conn)
Dim RsRecordCount = RsCommand.ExecuteScalar()
If RsRecordCount = 0 Then
divErrEx.Visible = True
Else
SQL = "UPDATE utenti SET confermato = 'true' WHERE ConfRndNum = " & QS
RsCommand = New OleDbCommand(Sql, Conn)
RsCommand.ExecuteNonQuery()
Dim ReadCookie = Request.Cookies("tristizia_auth")
ltrUsername.Text = ReadCookie("Username")
divConfOp.Visible = TRUE
End If

the line "If RsRecordCount = 0 Then" gives error
The error is strange becouse if RsRecordCount is 0 the page works, if not it gives the error

Thanks for any answer
Bye
. AtariVerify that the following line is not returning NULL. If it is and you are trying to put it into a string then it won't work of course. The line below is defiantely your problem I think though.

ltrUsername.Text = ReadCookie("Username")

Ok tryed, but the error appears =

I tryed either so:

If RsRecordCount = 0 Then
divErrEx.Visible = True
Else
SQL = "UPDATE utenti SET confermato = 'true' WHERE ConfRndNum = " & QS
RsCommand = New OleDbCommand(Sql, Conn)
RsCommand.ExecuteNonQuery()
Dim ReadCookie = Request.Cookies("tristizia_auth")
If Not ReadCookie Is Nothing Then
ltrUsername.Text = ReadCookie("Username")
Else
ltrUsername.Text = "[Unsknown]"
End If
divConfOp.Visible = TRUE
End If

But however I get error either so :

If RsRecordCount = 0 Then
divErrEx.Visible = True
Else
Dim MyVar = "ewruowehr"
End If

Boh?!?!

Bye
. Atari
One more victim of the Visual Basic type sloppiness (which is a feature).
Try to Dim ReadCookie as HttpCookie, just to be sure you don't get a string instead.
Uhm nothing is changed...

Dim Conn = New OleDbConnection("Provider = Microsoft.Jet.OleDb.4.0;Data Source=" & Server.MapPath("/mdb-database/tristizia.mdb"))
Conn.Open()
Dim SQL = "SELECT confermato, confrndnum FROM utenti WHERE confermato = 'false' AND confrndnum = " & Qs
Dim RsCommand = New OleDbCommand(Sql, Conn)
Dim RsRecordCount = RsCommand.ExecuteScalar()
<b style="color:red;">If RsRecordCount = 0 Then</b>
divErrEx.Visible = True
Else
SQL = "UPDATE utenti SET confermato = 'true' WHERE ConfRndNum = " & QS
RsCommand = New OleDbCommand(Sql, Conn)
RsCommand.ExecuteNonQuery()
Dim ReadCookie As HttpCookie = Request.Cookies("tristizia_auth")
If Not ReadCookie Is Nothing Then
ltrUsername.Text = ReadCookie("Username")
Else
ltrUsername.Text = "[Sconosciuto]"
End If
divConfOp.Visible = TRUE
End If

But what's the problem? I need to declare AS [type] the variables ? If so what's RsRecordCount ? I tryed As Integer but doesn't work...

Bye
. Atari
It's always better to declare the type of your variables. Not declaring it is a source of bugs.
Why do you use ExecuteScalar here, whereas your query returns two different columns? ExecuteScalar returns the first column of the first row. Here, it would be confermato. Is this column an integer?
In this case, you can Dim RsRecordCount as Integer = CType(RsCommand.ExecuteScalar(), Integer), but I suspect this is not what you're trying to do...
Your query should probably be "SELECT COUNT(*) FROM utenti WHERE confermato = 'false' AND confrndnum = " & Qs

System.FormatException: Input String was not in a correct format.

I've got an error "System.FormatException: Input string was not in a correct
format." while I'm implementing a datagrid and a textbox
What's wrong with it?

Sub Button1_Click(sender As Object, e As EventArgs)
DataGrid1.DataSource = MyQueryMethod(CInt(TextBox1.Text))
DataGrid1.DataBind()
End Sub

Function MyQueryMethod(ByVal others As String) As System.Data.DataSet
Dim connectionString As String = "server='localhost'; user id='******';
password='******'; database='******'"
Dim dbConnection As System.Data.IDbConnection = New
System.Data.SqlClient.SqlConnection(connectionStri ng)
Dim queryString As String = "SELECT [Software].* FROM [Software] WHERE
([Software].[Others] like @dotnet.itags.org.Others)"
Dim dbCommand As System.Data.IDbCommand = New
System.Data.SqlClient.SqlCommand
dbCommand.CommandText = queryString
dbCommand.Connection = dbConnection
Dim dbParam_others As System.Data.IDataParameter = New
System.Data.SqlClient.SqlParameter
dbParam_others.ParameterName = "@dotnet.itags.org.Others" dbParam_others.Value = others
dbParam_others.DbType = System.Data.DbType.String
dbCommand.Parameters.Add(dbParam_others)

Dim dataAdapter As System.Data.IDbDataAdapter = New
System.Data.SqlClient.SqlDataAdapter
dataAdapter.SelectCommand = dbCommand
Dim dataSet As System.Data.DataSet = New System.Data.DataSet
dataAdapter.Fill(dataSet)
Return dataSet

End FunctionI would guess it is something to do with converting the TextBox1.Text to an
int data type. The textbox could potentially contain a value other than a
numeric value. This would cause this error. Also, MyQueryMethod looks like
it is expecting a value of a string data type. Since you are converting
TextBox1.Text to an int type, this may also cause the error.

-Darrin

"sbox" <s@.b.x> wrote in message
news:%23ibArp48DHA.712@.tk2msftngp13.phx.gbl...
> I've got an error "System.FormatException: Input string was not in a
correct
> format." while I'm implementing a datagrid and a textbox
> What's wrong with it?
> Sub Button1_Click(sender As Object, e As EventArgs)
> DataGrid1.DataSource = MyQueryMethod(CInt(TextBox1.Text))
> DataGrid1.DataBind()
> End Sub
> Function MyQueryMethod(ByVal others As String) As System.Data.DataSet
> Dim connectionString As String = "server='localhost'; user
id='******';
> password='******'; database='******'"
> Dim dbConnection As System.Data.IDbConnection = New
> System.Data.SqlClient.SqlConnection(connectionStri ng)
> Dim queryString As String = "SELECT [Software].* FROM [Software] WHERE
> ([Software].[Others] like @.Others)"
> Dim dbCommand As System.Data.IDbCommand = New
> System.Data.SqlClient.SqlCommand
> dbCommand.CommandText = queryString
> dbCommand.Connection = dbConnection
> Dim dbParam_others As System.Data.IDataParameter = New
> System.Data.SqlClient.SqlParameter
> dbParam_others.ParameterName = "@.Others" dbParam_others.Value = others
> dbParam_others.DbType = System.Data.DbType.String
> dbCommand.Parameters.Add(dbParam_others)
> Dim dataAdapter As System.Data.IDbDataAdapter = New
> System.Data.SqlClient.SqlDataAdapter
> dataAdapter.SelectCommand = dbCommand
> Dim dataSet As System.Data.DataSet = New System.Data.DataSet
> dataAdapter.Fill(dataSet)
> Return dataSet
> End Function
You should not have the ' ' in your connection string. Take a look at the
connection strings at

http://www.able-consulting.com/dotn...ManagedProvider

Ben Miller

--
Get Secure! - www.microsoft.com/security
This posting is provided "as is" with no warranties and confers no rights.

"sbox" <s@.b.x> wrote in message
news:%23ibArp48DHA.712@.tk2msftngp13.phx.gbl...
> I've got an error "System.FormatException: Input string was not in a
correct
> format." while I'm implementing a datagrid and a textbox
> What's wrong with it?
> Sub Button1_Click(sender As Object, e As EventArgs)
> DataGrid1.DataSource = MyQueryMethod(CInt(TextBox1.Text))
> DataGrid1.DataBind()
> End Sub
> Function MyQueryMethod(ByVal others As String) As System.Data.DataSet
> Dim connectionString As String = "server='localhost'; user
id='******';
> password='******'; database='******'"
> Dim dbConnection As System.Data.IDbConnection = New
> System.Data.SqlClient.SqlConnection(connectionStri ng)
> Dim queryString As String = "SELECT [Software].* FROM [Software] WHERE
> ([Software].[Others] like @.Others)"
> Dim dbCommand As System.Data.IDbCommand = New
> System.Data.SqlClient.SqlCommand
> dbCommand.CommandText = queryString
> dbCommand.Connection = dbConnection
> Dim dbParam_others As System.Data.IDataParameter = New
> System.Data.SqlClient.SqlParameter
> dbParam_others.ParameterName = "@.Others" dbParam_others.Value = others
> dbParam_others.DbType = System.Data.DbType.String
> dbCommand.Parameters.Add(dbParam_others)
> Dim dataAdapter As System.Data.IDbDataAdapter = New
> System.Data.SqlClient.SqlDataAdapter
> dataAdapter.SelectCommand = dbCommand
> Dim dataSet As System.Data.DataSet = New System.Data.DataSet
> dataAdapter.Fill(dataSet)
> Return dataSet
> End Function

System.FormatException: Input string was not in a correct format

I am getting above error

// Validate input
if ((userId.Trim() == string.Empty) || (password.Trim() == string.Empty))
return null;

// Get an instance of the account DAC using the DACFactory
IUserAccount dac = CData.DACFactory.FDACUserAccount.Create();

//On this line i am getting error.userId and Password are strings
UserAccountInfo userAccount = dac.Login(userId , password);
return userAccount;

Please sort out my problemI have made three assemblies. 1 is calling 2nd and 2nd is calling 3rd.
now when i call methods of 3rd from 1st through 2nd one i get "System.FormatException: Input string was not in a correct format" on every string manipulation. Even if it is throwing exceptions in string formats it gives that exception
When you use the Trim method, it expects the variable to be a string. When your variable is null, the Trim method would throw that FormatException. So you should rewrite your code to test your variable again null instead.
Ex:
<code>
if( userID == null )
{
//do something here
}

System.FormatException: Input string was not in a correct format

Hello all,

I'm looking for a long time to find out what's wrong, but I can't find the mistake...
The connection to the database works correctly (Select,..), but when I set up the Insert-Command by clicking a button I get the following exception. Does anybody can help me and tell me what's wrong?!

Thank you for helping!

Exception:
System.FormatException: Input string was not in a correct format. at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) at System.String.System.IConvertible.ToInt32(IFormatProvider provider) at System.Convert.ChangeType(Object value, Type conversionType, IFormatProvider provider) at System.Data.OleDb.OleDbParameter.GetParameterValue() at System.Data.OleDb.OleDbParameter.GetParameterScale() at System.Data.OleDb.OleDbParameter.BindParameter(Int32 i, DBBindings bindings, tagDBPARAMBINDINFO[] bindInfo) at System.Data.OleDb.OleDbCommand.CreateAccessor() at System.Data.OleDb.OleDbCommand.InitializeCommand(CommandBehavior behavior, Boolean throwifnotsupported) at System.Data.OleDb.OleDbCommand.ExecuteCommand(CommandBehavior behavior, Object& executeResult) at System.Data.OleDb.OleDbCommand.ExecuteReaderInternal(CommandBehavior behavior, String method) at System.Data.OleDb.OleDbCommand.ExecuteNonQuery() at roomplaner.ObjektHinzu.Anlegen_Click(Object sender, EventArgs e) in C:\Inetpub\...\ObjektHinzu.aspx.vb:line 107

line 107 --> Command.ExecuteNonQuery()

 Dim Command As New OleDbCommand
 'create OleDb database connection
 Dim SQL_CONNECTION_STRING As String = "Provider=SQLOLEDB;Server=...;...."
 Command.Connection = New OleDbConnection(SQL_CONNECTION_STRING)
 'create SQL statement for INSERT into table
 Command.CommandText = "INSERT INTO t_object (Name, ObjectType, Category, Manufactor, Length, Width, Height, Text_Short, Text_Long, URL_Pic_Small, URL_Pic_Big, URL_Pic_Plan, URL_VET, VET_ObjectName, Material, Color, Price, ObjectLink, Comment, MaxSceneCount) values (?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?,?)"
 Command.CommandType = CommandType.Text
 'add input parameters and values to INSERT statement
 Command.Parameters.Add("@dotnet.itags.org.Name", OleDbType.VarChar, 100).Value = O_Name.Text
 Command.Parameters.Add("@dotnet.itags.org.ObjectType", OleDbType.BigInt, 8).Value = O_ObjectType.SelectedValue
 Command.Parameters.Add("@dotnet.itags.org.Category", OleDbType.BigInt, 8).Value = O_Category.SelectedValue
 Command.Parameters.Add("@dotnet.itags.org.Manufactor", OleDbType.BigInt, 8).Value = O_Manufactor.SelectedValue
 Command.Parameters.Add("@dotnet.itags.org.Length", OleDbType.Integer, 4).Value = O_Length.Text
 Command.Parameters.Add("@dotnet.itags.org.Width", OleDbType.Integer, 4).Value = O_Width.Text
 Command.Parameters.Add("@dotnet.itags.org.Height", OleDbType.Integer, 4).Value = O_Height.Text
 Command.Parameters.Add("@dotnet.itags.org.Text_Short", OleDbType.VarChar, 100).Value = O_Text_Short.Text
 Command.Parameters.Add("@dotnet.itags.org.Text_Long", OleDbType.VarChar, 500).Value = O_Text_Long.Text
 Command.Parameters.Add("@dotnet.itags.org.URL_Pic_Small", OleDbType.VarChar, 100).Value = "0"
 Command.Parameters.Add("@dotnet.itags.org.URL_Pic_Big", OleDbType.VarChar, 100).Value = "0"
 Command.Parameters.Add("@dotnet.itags.org.URL_Pic_Plan", OleDbType.VarChar, 100).Value = "0"
 Command.Parameters.Add("@dotnet.itags.org.URL_VET", OleDbType.VarChar, 100).Value = "0"
 Command.Parameters.Add("@dotnet.itags.org.VET_ObjectName", OleDbType.VarChar, 50).Value = O_VET_ObjectName.Text
 Command.Parameters.Add("@dotnet.itags.org.Material", OleDbType.BigInt, 8).Value = O_Material.SelectedValue
 Command.Parameters.Add("@dotnet.itags.org.Color", OleDbType.BigInt, 8).Value = O_Color.SelectedValue
 Command.Parameters.Add("@dotnet.itags.org.Price", OleDbType.VarChar, 50).Value = O_Price.Text
 Command.Parameters.Add("@dotnet.itags.org.ObjectLink", OleDbType.VarChar, 100).Value = O_ObjectLink.Text
 Command.Parameters.Add("@dotnet.itags.org.Comment", OleDbType.VarChar, 100).Value = O_Comment.Text
 Command.Parameters.Add("@dotnet.itags.org.MaxSceneCount", OleDbType.Integer, 4).Value = O_MaxSceneCount.Text
 Try
 Command.Connection.Open()
 Command.ExecuteNonQuery() 'save record
 Catch ex As Exception
 Response.Write("Exception:")
 Response.Write(ex.ToString)
 End Try
 Command.Connection.Close()
 End Sub

The error is associated with a call to System.Number.ParseInt32(). That tells me that one of the parameters is expected to contain an integer or a string representation of an integer but does not. Identify integer parameters. Then in the debugger, determine if any of them are:
1. Not assigned. If a string is provided, is it an empty string?
2. Contains other characters than digits?
These two cases will generate that exception. (The .net docs for Convert.ToInt32 say FormatException will occur when:value does not consist of an optional sign followed by a sequence of digits (zero through nine).)

System.FormatException: Input string was not in a correct format....?

I've been working on this for a while, googled and everything, and i still can't work out what is wrong with this string... I keep getting this error:

System.FormatException: Input string was not in a correct format

public void btnCalculate_Click(object sender, System.EventArgs e)
{
double Label = Convert.ToDouble((Convert.ToInt32(lblQrtrs.Text)) + (Convert.ToInt32(lblOnes.Text)) + (Convert.ToInt32(lblTwos.Text)) + (Convert.ToInt32(lblFives.Text)) + (Convert.ToInt32(lblTens.Text)) + (Convert.ToInt32(lblTwenties.Text)) + (Convert.ToInt32(lblFifties.Text)) + (Convert.ToInt32(lblHundreds.Text)));
lblCalculate.Text = string.Format("{0:c}", Label);

Can anybody tell what i'm doing wrong here? Thanks,
Austin W.I should specify that each of those labels was already converted into a currency format from a textbox, like:

double Label = Convert.ToDouble(Convert.ToInt32(tbHundreds.Text) * 100);
lblHundreds.Text = string.Format("{0:c}", Label);

Just an update...

Ive converted my code to this...Its still not working but i feel like its on a better track than it was before, anybody got any ideas?

double Qrtrs = Convert.ToDouble(lblQrtrs.Text);
double Ones = Convert.ToDouble(lblOnes.Text);
double Twos = Convert.ToDouble(lblTwos.Text);
double Fives = Convert.ToDouble(lblFives.Text);
double Tens = Convert.ToDouble(lblTens.Text);
double Twenties = Convert.ToDouble(lblTwenties.Text);
double Fifties = Convert.ToDouble(lblFifties.Text);
double Hundreds = Convert.ToDouble(lblHundreds.Text);
double Label = (Qrtrs + Ones + Twos + Fives + Tens + Twenties + Fifties + Hundreds);
lblCalculate.Text = string.Format("{0:c}", Label);

Hi,
I am having the same problem, 'input string was not in a correctformat' when I try to convert something to double usingConvert.ToDouble(). I have a text box and if I enter something likethis, 123.45 and click on the submit button I get this error. Any help.
Thanks.


I think I got your answer. Now first I dontknow whats the string of your Label. Let's say that the label has"23.45" okay and you try to do the following:
string someString = Label1.Text;
int someInt = Int32.Parse(someString); // This will give error
It will give error since it was not able to parse the string as Int32. If you try to parse it as Double than it will run okay.
string someString = "23.45";
Double myDouble = Double.Parse(someString); // This will work fine.
Now if your lblhundred contains "100" without any decimal points than you can simply do this and it will work.
string someString = "455";
int someInt = Int32.Parse(someString);
Hope this will help!

Also check using the WebControl Type "Label" as a variable, like maybe change these two lines to:

double LabelValue = (Qrtrs + Ones + Twos + Fives + Tens + Twenties + Fifties + Hundreds);
lblCalculate.Text = string.Format("{0:c}", LabelValue);
NC...

System.OverflowException during IPostBackDataHandler.LoadPostData

During my postbacks, I try to assign the value from an Input tag to a
property of a custom control. However, I keep recieving the following error:

An exception of type 'System.OverflowException' occurred in
Microsoft.VisualBasic.dll but was not handled in user code
Additional information: Arithmetic operation resulted in an overflow.

The code that it highlights during this error is the 2nd line of the
following (Me.Value = postCollection(Me.ID & "_currvalue")):

Public Function LoadPostData(ByVal postDataKey As String, ByVal
postCollection As NameValueCollection) As Boolean Implements
IPostBackDataHandler.LoadPostData
Me.Value = postCollection(Me.ID & "_currvalue")
Return True
End Function

I will admit that this is my first time using the IPostBackDataHandler
interface, but 'System.OverflowException' seems like a very strange
exception for this part of my code, since I am just doing a String
concatenation and an assignment. The value associated with this
postCollection key is a positive integer (well, a string actually, but it
has no negative signs or decimal places, just a couple digits) and Me.Value
is a Property of my Control that is of type Integer, so it shouldn't have
any problem converting, right? If anybody has any ideas as to where I might
be going wrong here, or where I could look to help find the problem, I would
appreciate it. Thanks.
--
Nathan Sokalski
njsokalski@dotnet.itags.org.hotmail.com
http://www.nathansokalski.com/What does the Value property and RaisePostDataChanged method (another method
of IPostBackDataHandler) look like? If the code isn't long oner, post entire
control's sources.

--
Teemu Keiski
ASP.NET MVP, AspInsider
Finland, EU
http://blogs.aspadvice.com/joteke
"Nathan Sokalski" <njsokalski@.hotmail.comwrote in message
news:%23cRbMd8qGHA.1140@.TK2MSFTNGP05.phx.gbl...

Quote:

Originally Posted by

During my postbacks, I try to assign the value from an Input tag to a
property of a custom control. However, I keep recieving the following
error:
>
>
An exception of type 'System.OverflowException' occurred in
Microsoft.VisualBasic.dll but was not handled in user code
Additional information: Arithmetic operation resulted in an overflow.
>
>
The code that it highlights during this error is the 2nd line of the
following (Me.Value = postCollection(Me.ID & "_currvalue")):
>
>
Public Function LoadPostData(ByVal postDataKey As String, ByVal
postCollection As NameValueCollection) As Boolean Implements
IPostBackDataHandler.LoadPostData
Me.Value = postCollection(Me.ID & "_currvalue")
Return True
End Function
>
>
I will admit that this is my first time using the IPostBackDataHandler
interface, but 'System.OverflowException' seems like a very strange
exception for this part of my code, since I am just doing a String
concatenation and an assignment. The value associated with this
postCollection key is a positive integer (well, a string actually, but it
has no negative signs or decimal places, just a couple digits) and
Me.Value is a Property of my Control that is of type Integer, so it
shouldn't have any problem converting, right? If anybody has any ideas as
to where I might be going wrong here, or where I could look to help find
the problem, I would appreciate it. Thanks.
--
Nathan Sokalski
njsokalski@.hotmail.com
http://www.nathansokalski.com/
>

Here is the code for the Value property:

<Description("The value that the Slider is currently set to")>
<DefaultValue("0")_
Public Property Value() As Integer
Get
If IsNothing(ViewState("value")) Then Return 0 Else Return
ViewState("value")
End Get
Set(ByVal value As Integer)
ViewState("value") = value
End Set
End Property

And here is the code for the RaisePostDataChangedEvent method:

Public Sub RaisePostDataChangedEvent() Implements
IPostBackDataHandler.RaisePostDataChangedEvent
End Sub

The only code in my OnPreRender method other than the creating of the
client-side scripts, which I do using String concatenation and the
Page.ClientScript.RegisterClientScriptBlock method, is setting the only
global variable I have, which is declared as Private pixeltovalue As
Decimal, as follows:

Me.pixeltovalue = (Me.Width - 48) / (Me.MaxValue - Me.MinValue)

My Render method just uses the basic methods of the HtmlTextWriter class.
The only arithmetic operations in my OnPreRender and Render methods are very
simple addition, subtraction, multiplication, and division. I did not think
it was worth pasting all my code into this message (although I can if you
really think it will help you solve the problem), since almost all of it is
property declarations, all of which look exactly the same as the one above,
String concatenation while building the JavaScript functions, and the basic
HtmlTextWriter methods used to create the html tags; the only other code in
my control is the IPostBackDataHandler implementation and the
Me.pixeltovalue declaration and assignment that I showed above. Any ideas as
to what the problem might be? Thanks.
--
Nathan Sokalski
njsokalski@.hotmail.com
http://www.nathansokalski.com/
"Teemu Keiski" <joteke@.aspalliance.comwrote in message
news:Oblpjg9qGHA.4516@.TK2MSFTNGP02.phx.gbl...

Quote:

Originally Posted by

What does the Value property and RaisePostDataChanged method (another
method of IPostBackDataHandler) look like? If the code isn't long oner,
post entire control's sources.
>
>
--
Teemu Keiski
ASP.NET MVP, AspInsider
Finland, EU
http://blogs.aspadvice.com/joteke
>
>
>
"Nathan Sokalski" <njsokalski@.hotmail.comwrote in message
news:%23cRbMd8qGHA.1140@.TK2MSFTNGP05.phx.gbl...

Quote:

Originally Posted by

>During my postbacks, I try to assign the value from an Input tag to a
>property of a custom control. However, I keep recieving the following
>error:
>>
>>
>An exception of type 'System.OverflowException' occurred in
>Microsoft.VisualBasic.dll but was not handled in user code
>Additional information: Arithmetic operation resulted in an overflow.
>>
>>
>The code that it highlights during this error is the 2nd line of the
>following (Me.Value = postCollection(Me.ID & "_currvalue")):
>>
>>
>Public Function LoadPostData(ByVal postDataKey As String, ByVal
>postCollection As NameValueCollection) As Boolean Implements
>IPostBackDataHandler.LoadPostData
> Me.Value = postCollection(Me.ID & "_currvalue")
> Return True
>End Function
>>
>>
>I will admit that this is my first time using the IPostBackDataHandler
>interface, but 'System.OverflowException' seems like a very strange
>exception for this part of my code, since I am just doing a String
>concatenation and an assignment. The value associated with this
>postCollection key is a positive integer (well, a string actually, but it
>has no negative signs or decimal places, just a couple digits) and
>Me.Value is a Property of my Control that is of type Integer, so it
>shouldn't have any problem converting, right? If anybody has any ideas as
>to where I might be going wrong here, or where I could look to help find
>the problem, I would appreciate it. Thanks.
>--
>Nathan Sokalski
>njsokalski@.hotmail.com
>http://www.nathansokalski.com/
>>

>
>

Hi,

could it be that the

Me.Value = postCollection(Me.ID & "_currvalue")

would be so big number it doesn't fit to the value? (32-bit Integer). Where
does this value come from? Is it calculated, entered by user?

--
Teemu Keiski
ASP.NET MVP, AspInsider
Finland, EU
http://blogs.aspadvice.com/joteke
"Nathan Sokalski" <njsokalski@.hotmail.comwrote in message
news:OWsfabErGHA.3856@.TK2MSFTNGP02.phx.gbl...

Quote:

Originally Posted by

Here is the code for the Value property:
>
>
<Description("The value that the Slider is currently set to")>
<DefaultValue("0")_
Public Property Value() As Integer
Get
If IsNothing(ViewState("value")) Then Return 0 Else Return
ViewState("value")
End Get
Set(ByVal value As Integer)
ViewState("value") = value
End Set
End Property
>
>
And here is the code for the RaisePostDataChangedEvent method:
>
>
Public Sub RaisePostDataChangedEvent() Implements
IPostBackDataHandler.RaisePostDataChangedEvent
End Sub
>
>
The only code in my OnPreRender method other than the creating of the
client-side scripts, which I do using String concatenation and the
Page.ClientScript.RegisterClientScriptBlock method, is setting the only
global variable I have, which is declared as Private pixeltovalue As
Decimal, as follows:
>
>
Me.pixeltovalue = (Me.Width - 48) / (Me.MaxValue - Me.MinValue)
>
>
My Render method just uses the basic methods of the HtmlTextWriter class.
The only arithmetic operations in my OnPreRender and Render methods are
very simple addition, subtraction, multiplication, and division. I did not
think it was worth pasting all my code into this message (although I can
if you really think it will help you solve the problem), since almost all
of it is property declarations, all of which look exactly the same as the
one above, String concatenation while building the JavaScript functions,
and the basic HtmlTextWriter methods used to create the html tags; the
only other code in my control is the IPostBackDataHandler implementation
and the Me.pixeltovalue declaration and assignment that I showed above.
Any ideas as to what the problem might be? Thanks.
--
Nathan Sokalski
njsokalski@.hotmail.com
http://www.nathansokalski.com/
>
"Teemu Keiski" <joteke@.aspalliance.comwrote in message
news:Oblpjg9qGHA.4516@.TK2MSFTNGP02.phx.gbl...

Quote:

Originally Posted by

>What does the Value property and RaisePostDataChanged method (another
>method of IPostBackDataHandler) look like? If the code isn't long oner,
>post entire control's sources.
>>
>>
>--
>Teemu Keiski
>ASP.NET MVP, AspInsider
>Finland, EU
>http://blogs.aspadvice.com/joteke
>>
>>
>>
>"Nathan Sokalski" <njsokalski@.hotmail.comwrote in message
>news:%23cRbMd8qGHA.1140@.TK2MSFTNGP05.phx.gbl...

Quote:

Originally Posted by

>>During my postbacks, I try to assign the value from an Input tag to a
>>property of a custom control. However, I keep recieving the following
>>error:
>>>
>>>
>>An exception of type 'System.OverflowException' occurred in
>>Microsoft.VisualBasic.dll but was not handled in user code
>>Additional information: Arithmetic operation resulted in an overflow.
>>>
>>>
>>The code that it highlights during this error is the 2nd line of the
>>following (Me.Value = postCollection(Me.ID & "_currvalue")):
>>>
>>>
>>Public Function LoadPostData(ByVal postDataKey As String, ByVal
>>postCollection As NameValueCollection) As Boolean Implements
>>IPostBackDataHandler.LoadPostData
>> Me.Value = postCollection(Me.ID & "_currvalue")
>> Return True
>>End Function
>>>
>>>
>>I will admit that this is my first time using the IPostBackDataHandler
>>interface, but 'System.OverflowException' seems like a very strange
>>exception for this part of my code, since I am just doing a String
>>concatenation and an assignment. The value associated with this
>>postCollection key is a positive integer (well, a string actually, but
>>it has no negative signs or decimal places, just a couple digits) and
>>Me.Value is a Property of my Control that is of type Integer, so it
>>shouldn't have any problem converting, right? If anybody has any ideas
>>as to where I might be going wrong here, or where I could look to help
>>find the problem, I would appreciate it. Thanks.
>>--
>>Nathan Sokalski
>>njsokalski@.hotmail.com
>>http://www.nathansokalski.com/
>>>

>>
>>

>
>

No, that was not the problem, but I found that in my client-side JavaScript
I needed to explicitly convert a text value to a Number, I was ending up
with a value like "25-1" being sent to the server instead of 24, but thanks
for your help anyway.
--
Nathan Sokalski
njsokalski@.hotmail.com
http://www.nathansokalski.com/
"Teemu Keiski" <joteke@.aspalliance.comwrote in message
news:ObNfoyJrGHA.4504@.TK2MSFTNGP04.phx.gbl...

Quote:

Originally Posted by

Hi,
>
could it be that the
>
Me.Value = postCollection(Me.ID & "_currvalue")
>
would be so big number it doesn't fit to the value? (32-bit Integer).
Where does this value come from? Is it calculated, entered by user?
>
>
--
Teemu Keiski
ASP.NET MVP, AspInsider
Finland, EU
http://blogs.aspadvice.com/joteke
>
>
>
"Nathan Sokalski" <njsokalski@.hotmail.comwrote in message
news:OWsfabErGHA.3856@.TK2MSFTNGP02.phx.gbl...

Quote:

Originally Posted by

>Here is the code for the Value property:
>>
>>
><Description("The value that the Slider is currently set to")>
><DefaultValue("0")_
>Public Property Value() As Integer
> Get
> If IsNothing(ViewState("value")) Then Return 0 Else Return
>ViewState("value")
> End Get
> Set(ByVal value As Integer)
> ViewState("value") = value
> End Set
>End Property
>>
>>
>And here is the code for the RaisePostDataChangedEvent method:
>>
>>
>Public Sub RaisePostDataChangedEvent() Implements
>IPostBackDataHandler.RaisePostDataChangedEvent
>End Sub
>>
>>
>The only code in my OnPreRender method other than the creating of the
>client-side scripts, which I do using String concatenation and the
>Page.ClientScript.RegisterClientScriptBlock method, is setting the only
>global variable I have, which is declared as Private pixeltovalue As
>Decimal, as follows:
>>
>>
>Me.pixeltovalue = (Me.Width - 48) / (Me.MaxValue - Me.MinValue)
>>
>>
>My Render method just uses the basic methods of the HtmlTextWriter class.
>The only arithmetic operations in my OnPreRender and Render methods are
>very simple addition, subtraction, multiplication, and division. I did
>not think it was worth pasting all my code into this message (although I
>can if you really think it will help you solve the problem), since almost
>all of it is property declarations, all of which look exactly the same as
>the one above, String concatenation while building the JavaScript
>functions, and the basic HtmlTextWriter methods used to create the html
>tags; the only other code in my control is the IPostBackDataHandler
>implementation and the Me.pixeltovalue declaration and assignment that I
>showed above. Any ideas as to what the problem might be? Thanks.
>--
>Nathan Sokalski
>njsokalski@.hotmail.com
>http://www.nathansokalski.com/
>>
>"Teemu Keiski" <joteke@.aspalliance.comwrote in message
>news:Oblpjg9qGHA.4516@.TK2MSFTNGP02.phx.gbl...

Quote:

Originally Posted by

>>What does the Value property and RaisePostDataChanged method (another
>>method of IPostBackDataHandler) look like? If the code isn't long oner,
>>post entire control's sources.
>>>
>>>
>>--
>>Teemu Keiski
>>ASP.NET MVP, AspInsider
>>Finland, EU
>>http://blogs.aspadvice.com/joteke
>>>
>>>
>>>
>>"Nathan Sokalski" <njsokalski@.hotmail.comwrote in message
>>news:%23cRbMd8qGHA.1140@.TK2MSFTNGP05.phx.gbl...
>>>During my postbacks, I try to assign the value from an Input tag to a
>>>property of a custom control. However, I keep recieving the following
>>>error:
>>>>
>>>>
>>>An exception of type 'System.OverflowException' occurred in
>>>Microsoft.VisualBasic.dll but was not handled in user code
>>>Additional information: Arithmetic operation resulted in an overflow.
>>>>
>>>>
>>>The code that it highlights during this error is the 2nd line of the
>>>following (Me.Value = postCollection(Me.ID & "_currvalue")):
>>>>
>>>>
>>>Public Function LoadPostData(ByVal postDataKey As String, ByVal
>>>postCollection As NameValueCollection) As Boolean Implements
>>>IPostBackDataHandler.LoadPostData
>>> Me.Value = postCollection(Me.ID & "_currvalue")
>>> Return True
>>>End Function
>>>>
>>>>
>>>I will admit that this is my first time using the IPostBackDataHandler
>>>interface, but 'System.OverflowException' seems like a very strange
>>>exception for this part of my code, since I am just doing a String
>>>concatenation and an assignment. The value associated with this
>>>postCollection key is a positive integer (well, a string actually, but
>>>it has no negative signs or decimal places, just a couple digits) and
>>>Me.Value is a Property of my Control that is of type Integer, so it
>>>shouldn't have any problem converting, right? If anybody has any ideas
>>>as to where I might be going wrong here, or where I could look to help
>>>find the problem, I would appreciate it. Thanks.
>>>--
>>>Nathan Sokalski
>>>njsokalski@.hotmail.com
>>>http://www.nathansokalski.com/
>>>>
>>>
>>>

>>
>>

>
>