Can't do that because as per my understanding, I can bind only one validation group to a button. Well, I can fire validation request/s explicitly for the other group/s from javascript or something but still it will be a lengthy way. In actual scenario, In both blocks, I have grids having 5 and 8 rows respectively. Row can get added dynamically to grid so ultimately it'll be
total number of validators = (num of columns X num of rows X num of validators)
My page is already very bulky and I can't afford more size as it'll slow down my page.
Isn't there any way to manipulate error messages shown in validation summary through javascript or something similar to single validator control?
Any idea what property of validationSummary control holds all these messages. May be I can clear it from JS. I tried to search for it but couldn't found one.