Visual Studio .NET - Refresh Main Page when a Modal window is Close

Hello everyone! I have a problem how to refresh the main when a modal window is closed. In my Main page I have a datagrid that contains a record and I have Modal window use to add records after saving the record and close the modal window my main window does not refresh.

thanks

Probably the easiest is something like this

In your modal

window.returnValue = "doReload";
window.close();

Then in your mainpage

var modal = window.showModal....
if (modal == "doReload") {
   window.location = window.location;
}

What I like about this approach is that you can return all sorts of values and perform different actions.