Page with multiple validation groups always returns TRUE for Page.IsValid

I have two validation groups and two validation summaries on my page. Controls belong to either of two groups and there is a button for each group that performs the validation for each.

I can't get Page.IsValid开发者_开发技巧 to work; it always returns true regardless of the validity of the controls on the page. Is there a different way to validate only particular groups?

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Try performing Page.Validate before you check Page.IsValid like:

this.Page.Validate("ValidationGroup");
if (this.Page.IsValid)
{
   ...
}

Where "ValidationGroup" is the name of your validation group. If you use the Page.Validate() method without a group name parameter the validation groups are ignored and all controls are validated.