protected void Page_Load(object o, EventArgs e) {
if(IsPostBack) {
CreateClientSideMessageBox("IsPostBack is true");
}
else {
CreateClientSideMessageBox("IsPostBack is false");
}
}
protected void CreateClientSideMessageBox(string message) {
Response.Write("");
Response.Write("alert(\"" + message + "\");");
Response.Write("");
}
this page displays a client side message box