Handle events dynamiclly

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RadioButtonList rblDel = new RadioButtonList();

        rblDel.ID = "rblDelete";
        //rblDel.AutoPostBack = true;
        rblDel.Items.Add("Feedback ID");
       
        //Response.Write("<br/> <br/>");
        rblDel.Items.Add("Feedback Date");

        rblDel.SelectedIndexChanged += new System.EventHandler(this.rblDel_SelectedIndexChanged);
        PanelBottom.Controls.Add(rblDel);
        rblDel.Visible = true;

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protected void rblDel_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (rblDel.SelectedIndex == 0)
        {
            TextBox txtID = new TextBox();
            PanelBottom.Controls.Add(txtID);
        }
       
    }

This code does not fire events on selecting one of item in radiobutton list. Please provide me the solution. I want to show different data gridview and asp controls upon different selection on the left side menu.

 you have to use java script and send the clientId of the objects like :

rblDel.Attributes.Add("OnSelectedIndexChanged", "clicktoSelect('" + rblDel.ClientID + "')");

 and call the java script from aspx page something like :

function clicktoSelect(obj) {
            document.getElementById(obj).click();
        }

Thanks for the suggestion.......