Forms Data Controls :: Gridview 2 Dropdownlist Boxes One Feeds The Other?

Mar 1, 2010

I have a gridview. The gridview contains multiple dropdownlist boxes.Two of the dropdownlist boxes work together.Dropdownlist 1 called cmbLocations & Dropdownlist 2 called cmbSubLocations. On first load of the gridview the data is bound to the gridview.When 'Edit' is selected, the dropdownlist boxes are filled with their appropriate datasource (BindLocation)for the first dropdownlist and BindSubLocation for the second. HOWEVER, BindSubLocation, does not yet work, because the query that produces the data has a parameter. This parameter is the datavalue of the first dropdownlist box. (see routine below sample gridview).

Question: How can I get the datavaluefield (LocId) from the the first dropdownlist to feed the second?

see below how they look in gridview:


The sublocation bind routine:

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