CODEWITHSUNDEEP
asp.netvb.netindexing
user3199339
user3199339

Reputation: 1

Index was out of range. Must be non-negative and less than the size of the collection parameter

I am getting this error while trying to disable the first radio button on the radiobutton list using the vb code:

RadioButtonList1.Items(0).Enabled = False

Here is the aspx code

  <td class="TDLR">
     <asp:RadioButtonList ID="RadioButtonList1" runat="server" DataSourceID="SqlFollow"            DataTextField="FollowDesc" DataValueField="FollowID">
     </asp:RadioButtonList>
       <asp:SqlDataSource ID="SqlFollow" runat="server" 
       ConnectionString="<%$ ConnectionStrings:SampleConnectionString %>"
       SelectCommand="Select FollowID, FollowDesc FROM FollowUp WHERE FollowID > 30">
   </asp:SqlDataSource>
  </td>

Upvotes: 0

Views: 489

Answers (1)

afzalulh
afzalulh

Reputation: 7943

Check the Items.Count first:

EDIT : Try the code in Page_PreRender like below:

Protected Sub Page_PreRender(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreRender
    If RadioButtonList1.Items.Count > 0 Then
        RadioButtonList1.Items(0).Enabled = False
    End If
End Sub

Upvotes: 1

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