C# - Filter Subcategory Dropdownlist Inside Editable Template Of Listview / Formview

Aug 20, 2010

In my listview object insert/edit template, I have two dropdownlists (category, subcategory). When a user selects a category (autopostback), I would like the subcategory dropdown to filter to only the those that match the categoryID from the category ddl. This seems to be complicated by the fact that it is in a listview object. I'm currently using a queryextender on the subcategory datasource, but I'm not sure how to apply the selectedvalue of the category to the queryextender. The subcategory just shows all items and is not filtered. How do you accomplish this?

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[Code]....

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[Code]....

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[Code]....

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[Code]....

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[Code] ....

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