I have 2 dropdown List , the first one contains a list of categories and the secon one contains subCategories.
How can I choose an item from the First List and then display only subcategories in the second one .
I have my tables in WFGEN Database and I created two global Lists.
I want to use it in GridView，I can use from.But it won’t be used GridView
How to use it? Is there a case，thank you