Web Forms :: Adding Attributes To Dropdownlist From Codebehind

Jan 27, 2011

I have a dropdown list where I need more than just a bound value and a display value. I am using this in the page load event to add a custom attribute:

[Code]....

I'm actually looping through a sqldatareader for a list of employees, but for simplicity just consider the single option added above. When I go to check the attribute EmpNum for the selected option, I am getting "null":

[Code]....

Now the really weird part...If I add an option in the HTML source identical to the one that gets added in the codebehind, the javascript function works for that row, but not the row added from codebehind. Here is the rendered HTML for the SELECT:

[Code]....

If I select the 1st record (added from HTML source at design time) the alert says "12345". If I select the 2nd record, the alert says "null". I CAN get the value ("999-99-9999") and the displayed text ("John Doe") for either record, just not the EmpNum attribute, even though the HTML is exactly the same. I am completely stumped on this one.

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[Code]....

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[Code]....

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