Dynamically check box CheckedChanged is not fire

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I written following dynamic code for call check box CheckChanged event.
But I unable to call this event.

Please, give me help what is the actual issue?

CheckBox chk = new CheckBox();

string uniqueID = System.Guid.NewGuid().ToString().Substring(0, 5);
chk.ID = "chktrait" + cn.AspectID + "_" + cn.TraitID + uniqueID;
chk.Text = cn.ValueName;
chk.AutoPostBack = true;
chk.CheckedChanged += new EventHandler(CheckBox_CheckChanged);

protected void CheckBox_CheckChanged(object sender, EventArgs e)
{
//write the client id of the control that triggered the event
Response.Write(((CheckBox)sender).ClientID);
}

Posted 14-Jul-14 19:59pm

piyushpiyush

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SRS(The Coder) · Answer 1 · 2014-07-14T23:01:00

Here is an example to check your scenario and it works fine after adding the checkbox control to the form in current page.

C#

protected void Page_Load(object sender, EventArgs e)
        {
            CheckBox chk = new CheckBox();

            string uniqueID = System.Guid.NewGuid().ToString().Substring(0, 5);
            chk.ID = "chkTest";
            chk.Text = "Test";
            chk.AutoPostBack = true;
            chk.CheckedChanged += new EventHandler(CheckBox_CheckChanged);
            this.form1.Controls.Add(chk);
        }

        protected void CheckBox_CheckChanged(object sender, EventArgs e)
        {
            //write the client id of the control that triggered the event
            lblTest.Text = ((CheckBox)sender).ClientID;
        }

Hope this will be of help.