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I write this code :

MyCombo.Selecte dIndex = MyCombo.Items.I ndexOf ("MyString")

this line return -1 as the index value ( it means MyString is not found)

"MyString" exists in the items list. MyCombo is filled with the following code :

MyCombo.DataSou rce = MyDataSet.table s
MyCombo.Display Member = "...."
MyCombo.ValueMe mber = "...."...

Hi

Is it possible to change the data source of a dropdown list in a gridview from another dropdown list selected index changed method in the same gridview?

for example I have a dropdown that needs to change its contents depending on what is chosen in the previous cell of the gridview, which is also a dropdown list.

Any Help would be much appreciated

Thanks

All,

I'm having a little trouble getting the value of a select in my html form. I want a list of dates in a dropdown and when the user clicks on refresh it should do the appropriate action. But when I run in IE7, it comes up with the selectedIndex being undefined.

In my HTML body, I have the select and standard button:

...

To reproduce, run the code.

Observed:
System.Argument OutOfRangeExcep tion was unhandled
Message="Invali dArgument=Value of '0' is not valid for
'SelectedIndex' .\r\nParameter name: SelectedIndex"

t2.c1 contains legal value.
Why this error occurs ?
How to fix ?

Andrus.


using System.Windows. Forms;
using System.Data;
using System;
class...