Web Forms :: Unable To Change The Selectedindex Property To 0?

Sep 13, 2010

i am unable to change the selectedindex property to 0 it is coming as -1 only and the code wat i am using is

if (lstintellisense.SelectedIndex.ToString() == "-1")
{
lstintellisense.SelectedIndex = 0;
}

after making 0 also its remaining as -1 only and i am getting exception as InvalidArgument=Value of '0' is not valid for 'SelectedIndex'. Parameter name: SelectedIndex

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