Question

A put a ancor tag on a page. When I click it, I want the target page to appear smaller (i.e. 200px x 300px) just on top of the origin page.

<a href="Destination.aspx">Destination</a>

After I post back, I want the Destination page to desappear.

Thanks for helping

Answer 1

When I click it, I want the target page to appear smaller (i.e. 200px
x 300px) just on top of the origin page

You can open it with window.open

<a onclick="openPopup();">Destination</a>

function openPopup()
{
    window.open("Destination.aspx","mywindow","menubar=1,resizable=1,width=350,height=250");
}

After I post back, I want the Destination page to desappear.

1. Define a hidden field in Destination.aspx.

   <input type="hidden" runat="server" id="hdnHidePopup" value="" />
   

2. In postback of Destination.aspx after which you want the popup to disappear, set value of hidden field to “true” or something you like

    hdnHidePopup.Value = "true";
   

3. On load of popup add this javascript, could be just before the ending tag of body.

     <script type="text/javascript">
          hdnHidePopup = document.getElementByID('<%= hdnHidePopup.ClientID %>');
          if(hdnHidePopup .value == "true")
          {
               hdnHidePopup.value = "";
               window.close();       
          }
       </script>