Add event OnClick ?

CS1061: 'ASP.administration_modules_popupadvertise_ascx' does not contain a definition for 'btnSave1_Click' and no extension method 'btnSave1_Click' accepting a first argument of type 'ASP.administration_modules_popupadvertise_ascx' could be found (are you missing a using directive or an assembly reference?)

Please help me ! thank's

Hi,

Not enough information to help, but I suppose you didn't define the event handlers in code of module.
OnClick event handler should looks like that

protected void btnSave1_Click(object sender, EventArgs e)
{
   // here your code
}