Input string was not in the correct format

[sehguh]

Hiya Folks,

I am Currently using windows xp. Also using Visual Web Developer 2005 and Microsoft Sql server 2005.
The main page consists of an aspx page and a master page.
The page also consists of a label control(hidden when run in browser).
Also an Sql data source control connected to database tables for a photo album.
Also label web control ID=UserIdValue.
Also a Details View control ID=dvPictureInsert
Problem is how to work out what an “Unhandled exception “is and how to work out what
“Input string was not in a correct format” is.
When I put a category, Id and description values on my website and click on the insert hyperlink you get the “Input string was not in the correct format”.
Input string was not in a correct format. It would be appreciated if someone could explain how to read and understand the unhandled exception below.

Below is the unhandled exception
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

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

Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[FormatException: Input string was not in a correct format.]
System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) +2752899
System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) +102
System.String.System.IConvertible.ToInt32(IFormatProvider provider) +43
System.Convert.ChangeType(Object value, TypeCode typeCode, IFormatProvider provider) +293
System.Web.UI.WebControls.Parameter.GetValue(Object value, String defaultValue, TypeCode type, Boolean convertEmptyStringToNull, Boolean ignoreNullableTypeChanges) +248
System.Web.UI.WebControls.SqlDataSourceView.AddParameters(DbCommand command, ParameterCollection reference, IDictionary parameters, IDictionary exclusionList, String oldValuesParameterFormatString) +547
System.Web.UI.WebControls.SqlDataSourceView.ExecuteInsert(IDictionary values) +304
System.Web.UI.DataSourceView.Insert(IDictionary values, DataSourceViewOperationCallback callback) +68
System.Web.UI.WebControls.DetailsView.HandleInsert(String commandArg, Boolean causesValidation) +394
System.Web.UI.WebControls.DetailsView.HandleEvent(EventArgs e, Boolean causesValidation, String validationGroup) +609
System.Web.UI.WebControls.DetailsView.OnBubbleEvent(Object source, EventArgs e) +88
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +35
System.Web.UI.WebControls.DetailsViewRow.OnBubbleEvent(Object source, EventArgs e) +109
System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +35
System.Web.UI.WebControls.LinkButton.OnCommand(CommandEventArgs e) +85
System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) +153
System.Web.UI.WebControls.LinkButton.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +170
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +4921
 
 
Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42
 
 
Below is the event handler source code
 
Partial Class PhotoAdmin_Default
Inherits System.Web.UI.Page
 
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
UserIdValue.Text = Membership.GetUser().ProviderUserKey.ToString()
 
 
End Sub
 
Protected Sub dvPictureInsert_ItemInserting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DetailsViewInsertEventArgs) Handles dvPictureInsert.ItemInserting
e.Values("UserId") = Membership.GetUser().ProviderUserKey
e.Values("UploadedOn") = DateTime.Now
 
End Sub
End Class