The cleanest example I have seen for this feature is by Sergey Akopov.
Sergey implement a jQuery example that works wonderfully! Here is the link to the article. I attached the ZIP file same code, which is on Sergey's site as well.
MaintainScroll.zip (3.01 kb)
I had a user control embedded in an ASPX (parent) page as a hidden layer. The control was placed inside of a panel control that was hidden. The parent page would load an show the user control
Once the user completed the work they clicked "Close Window" that would raise an event on the parent page, and the parent page would hide the hidden layer.
1. User Control (ASCX): Add the following delegates and events
// Delegate declaration
public delegate void OnButtonClick(string strValue);
// Event declaration
public event OnButtonClick btnHandlerEditAccount;
2. User Control (ASCX): Button close event will raise btnHandlerEditAccount causing the parent page to hide the panel with the user control.
protected void BtnCloseWindow_Click(object sender, EventArgs e)
//Make the parent close the window
if (btnHandlerEditAccount != null) btnHandlerEditAccount(string.Empty);
3. Parent Page: Handles btnHandlerEditAccount from the user control.
//Event Handlers to close windows from user controls (place in Page_Load)
UCEditAccountInfo.btnHandlerEditAccount += new EditAccountInfo.OnButtonClick(UCEditAccount_btnHandler);
//Syntax of item above: UserControlName dropped on the page += new Class.NameOfActualUserControl.OnButtonClick(handler created in step 1)
/// Handle the Window Close on the Edit Account User Control
protected void UCEditAccount_btnHandler(string strValue)
PnlGrid.Enabled = true;
PnlAccountEdit.Visible = false;
To get the full application path (for example to a folder named Documents) in ASP.NET do the following.
1. If you are on a webpage you can use the request object.
string DocPath = Request.MapPath(@"/Documents/");
2. If you are in a class you can use HTTPContext
string DocPath = HttpContext.Current.Request.MapPath(@"/Documents/");