Question

I’m getting an occasional double postback. I’d like to disable the “save” button client-side after the user clicks it once, but I have to make sure the client side validators are valid before I disable it. How do I check this in clientside code?

Answer 1

Check this:
Client Validation Object Model

Use Page_IsValid to check that the all validation are valid or not on client side.

Use Page_ClientValidate() function for validating a particular validation group.

var isGroupValid = Page_ClientValidate("ValidationGroup");