Checkboxlist check/uncheck event

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I have a checkboxlist

<asp:CheckBoxList id="check1" AutoPostBack"True" TextAlign"Right" OnSelectedIndexChanged="Check" runat"server">

And the function:

Sub Check(ByVal sender As Object, ByVal e As EventArgs)
Dim sql As String
If check1.SelectedItem.Selected = True Then[code]....

The error is: Object reference not set to an instance of an object. Is there a better way to check if a list item is checked or unchecked?

Posted 29-May-13 19:17pm

komaliks

Updated 27-Sep-22 2:19am

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Vipin kumar.P · Answer 1 · 2013-05-29T19:44:00

Solution 1

Try the following

C#

if (Checkboxlist1.Items[Index].Selected)
            {
                Response.Write("Try this");
            }

Posted 29-May-13 19:44pm

Vipin kumar.P