Question

when i execute the code i get 4 checkboxs and i checked/selected all 4 checkbox and when i try to debug the code, it does count that i have 4 checkbox but all 4 checkbox is selected=false.

what i am missing in code?

<asp:checkboxlist id="chk" runat="server" ondatabinding="chk_DataBinding"
   ondatabound="chk_DataBound">
</asp:checkboxlist>

List<String> roles = new List<string>();

 for (int i = 0; i < chk.Items.Count; i++)
 {
     if (chk.Items[i].Selected)
    {
        roles.Add(chk.Items[i].Value);
    }
 }

Answer 1

Your logic is consistent with the basic CheckBoxList given on the ListControl.Items page, and from personal experience, checking the .Selected property of the ListItem should work fine.

Check to make sure you aren’t re-populating the CheckBoxList before you hit the “if checked” logic – if I had to guess, I’d say there’s a good chance you’re losing the list on every postback. The simple solution is don’t call your databinding logic if it’s a postback.