FieldValidator for radlistbox

2 posts, 0 answers
  1. Keven
    Keven avatar
    17 posts
    Member since:
    Sep 2010

    Posted 01 Oct 2010 Link to this post

    I have a RadListBox in a radgrid with the editformtype template and I want to validate that the RadListBox have at least one item. Is there a way to validate that with a FieldValidator.
  2. Princy
    Princy avatar
    17421 posts
    Member since:
    Mar 2007

    Posted 04 Oct 2010 Link to this post

    Hello Keven,


    You can use the built in ASP.NET validation with RadListBox.  To validate for selected item of a listbox, just specify the ID of the listbox in the ControlToValidate property of the RequiredFieldValidator. Validation checks to see if there is at least one selected item.

    For more information:
    http://www.telerik.com/help/aspnet-ajax/listbox-validation.html

    Thanks,
    Princy.
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