Forms Data Controls :: Ddl.items.insert On Databound Inserts Twice?
May 20, 2010
I have a DDL bound to a sqlDataSource, and I want to insert an item in the first position. I tried using this code in the onDatabound event:
Protected Sub ddl_onDataBound(ByVal sender As Object, ByVal e As EventArgs) Handles ddl.DataBound
ddl.Items.Insert(0, "None")
End Sub
But when I load the page, the item "None" is inserted twice at the beginning of the DDL? So I see something like:
None
None
item1
item2
Do I need to put the items.insert somewhere else, like on the pageLoad, to avoid it being executed twice, or am I doing something really wrong?
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protected void ImageButton2_Click1(object sender, ImageClickEventArgs e)
{
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[Code] ....
and SP
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GO
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SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER procedure [dbo].[insertproduct3]
[Code] ....
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Server Error in '/behtop website' Application.
Object cannot be cast from DBNull to other types.
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.InvalidCastException: Object cannot be cast from DBNull to other types.Source Error:
Line 805: _cmd.Parameters.AddWithValue("@behcode", data);
Line 806: _cmd.Parameters.AddWithValue("@id", Convert.ToInt32(ViewState["Id"]));
Line 807: int ID = Convert.ToInt32(_cmd.ExecuteScalar()); Line 808: if (ID > 0)
Line 809: {
why this happen?
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[code]....
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[Code]....
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