My WebGrid has several columns that have a WebCombo set as the EditorControl.  How can I filter one combobox based on value selected in another combobox? 

I don't think that I can use the strategy detailed here, because my query is much more complex and is housed in a Oracle package.

I tried assigning a function to the "AfterCloseUp" client side event on the first WebCombo.  The function removed and added rows in the second WebCombo using AJAX.  However, for some reason the code was very slow and therefore impractical.

Has anyone successfully implemented a more complex scenario than the provided example? If so, please share!