/// <param name="rbl">RadioButtonList to apply script to</param>
/// <param name="page">The Page the script is going to be appended to</param>
/// <param name="script">The script to append</param>
public static void SetRadioButtonListItemScript(RadioButtonList rbl, Page page, string script)

{

for (int idx = 0; idx < rbl.Items.Count; idx++)

{

RegisterClientObjectFunction(page, rbl, idx, script);

}

}



/// <param name="page">The Page the script is going to be appended to</param>
/// <param name="rbl">RadioButtonList to apply script to</param>
/// <param name="idx">the index of the radio button</param>
/// <param name="script">The script to append</param>
static private void RegisterClientObjectFunction(Page page, RadioButtonList rbl, int idx, string script)

{

StringBuilder sw = new StringBuilder();

if (!page.IsStartupScriptRegistered(rbl.ClientID + "_" + idx.ToString() + "script"))

{

sw.Append(@"<SCRIPT>");

sw.Append(@"document.getElementById('" + rbl.ClientID + "_" + idx.ToString() + "').onclick=function() {" + script + "return true;}");

sw.Append(@"</SCRIPT>");

page.RegisterStartupScript(rbl.ClientID + "_" + idx.ToString() + "script", sw.ToString());

}

}



static private void RegisterClientObjectFunction(Page page, CheckBox chk, string script)

{

StringBuilder sw = new StringBuilder();

if (!page.IsStartupScriptRegistered(chk + "script"))

{

sw.Append(@"<SCRIPT>");

sw.Append(@"document.getElementById('"+chk.ClientID + "').onclick=function() {" + script + "return true;}");

sw.Append(@"</SCRIPT>");

page.RegisterStartupScript(chk.ClientID + "script", sw.ToString());

}

}

Test selectedTest = (Test)comboBox1.SelectedItem;



Test test = (Test)bindingSource1.DataSource;

if (selectedTest == null || test == null)

return;



//save the selected value to the binding source
test.Name = selectedTest.Name;
test.Value = selectedTest.Value;
//this will write the comboBox's value to datasource, and reload all controls' value
comboBox1.DataBindings["SelectedValue"].WriteValue();