Forms Data Controls :: Gridview Change All Values In A Column?

Mar 7, 2011

I have a dataset into which I load an xml file using DS.ReadXml("~/Example.xml"). I have a column labeled show which is a checkbox. Below the gridview I have a button which says show all. When this is pressed, I want it to check every checkbox in the gridview and save the dataset back to the xml file.

My xml file has the following format:

[Code]....

My code is as follows:

[Code]....

Why doesn't this code work? I get the following error whilst executing it:

Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index

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