问题
I know that with a repeater I can use AlternatingItemTemplate and SeparatorTemplate to adopt a variety of alternating items or for the latter a consistent style / attribute between items.
But in my latest task, I require a SeperatorTemplate but only after every 3 items!
I know I can do this in the ItemDataBound and have a cheeky runningItemCount++ then use runningItemCount % 3 == 0 to place this in.
I also know I can do this using a repeater within a repeater. Just mentioning it is dirty....
I want to keep things clean to be honest, and if it's built in then it's something I want to get in the habit of using, so if anyone knows of how to do so in a nice way (no workarounds please), then please intrigue me.
回答1:
You are doing this correct, but you can use Container.ItemIndex instead of runningItemCount to keep track of the item index.
回答2:
Consider to use the ListView control. It support a GroupTemplate and GroupSeparatorTemplate templates.
回答3:
From looking in to this issue in various areas the conclusion in a nut shell is 'No there isn't'.
I had to use the method I mentioned as unfortunately there is no specific built in feature for this functionality.
来源：https://stackoverflow.com/questions/7611767/is-there-a-similar-way-to-alternateitemtemplate-to-do-this