Open PopUp Window Update Refresh Parent Values From Child ASP.NET


Information
I have added to labels in Default.aspx page and one button to open popup window.

I've also added a PopUp.aspx page which is having two textboxes and a button to update lable values of parent page.

The textboxes in popup window are populated with Text values of lables in parent page (Default.aspx), after making changes in textbox values i'm updating values back in parent page.
















HTML source of Default.aspx (parent) page is 
<form id="form1" runat="server">
<div>
First Name :
<asp:Label ID="lblFirstName" runat="server" Text="amiT">
</asp:Label><br />
 <br />
Last Name:&nbsp;
<asp:Label ID="lblLastName" runat="server" Text="jaiN">
</asp:Label><br />
<br />
<asp:Button ID="btnPop" runat="server" Text="Click To Edit Values" />
</div>
</form>
Write this Javascript in Head section of Default.aspx page
In this i m getting values of lables and passing them to popuup page as querystrings
write this code Page_Load event of Default.aspx (parent) page
C# code behind
protected void Page_Load(object sender, EventArgs e)
{
string updateValuesScript =
@"function updateValues(popupValues)
{
document.getElementById('lblFirstName').innerHTML=popupValues[0];
document.getElementById('lblLastName').innerHTML=popupValues[1];
}";
 
this.ClientScript.RegisterStartupScript(Page.GetType(),
"UpdateValues", updateValuesScript.ToString(), true);
btnPop.Attributes.Add("onclick", "openPopUp('PopUp.aspx')");
}

VB.NET code behind
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
    Dim updateValuesScript As String = "function updateValues(popupValues)" & vbCr & vbLf & "{" & vbCr & vbLf & " document.getElementById('lblFirstName').innerHTML=popupValues[0];" & vbCr & vbLf & " document.getElementById('lblLastName').innerHTML=popupValues[1];" & vbCr & vbLf & "}"
    Me.ClientScript.RegisterStartupScript(Page.[GetType](), "UpdateValues", updateValuesScript.ToString(), True)
    btnPop.Attributes.Add("onclick", "openPopUp('PopUp.aspx')")
End Sub

And this is the HTML code for PopUp.aspx(child) page 
<form id="form1" runat="server">
<div>
First Name :
<asp:TextBox ID="txtPopFName" runat="server" Width="113px">
</asp:TextBox><br />
<br />
Last Name:<asp:TextBox ID="txtPopLName" runat="server" 
                       Width="109px">
</asp:TextBox><br />
<br />
<asp:Button ID="Button1" runat="server" OnClick="Button1_Click" 
            Text="Button" /></div>
</form>
Code behind for PopUp.aspx
C# code behind
protected void Page_Load(object sender, EventArgs e)
{
string updateParentScript =
 @"function updateParentWindow()
 {                                                                              
var fName=document.getElementById('txtPopFName').value;    
var lName=document.getElementById('txtPopLName').value;  
 var arrayValues= new Array(fName,lName);
   window.opener.updateValues(arrayValues);      
  window.close();
}";
this.ClientScript.RegisterStartupScript(this.GetType(),
   "UpdateParentWindow", updateParentScript, true);
if (!IsPostBack)
{
 txtPopFName.Text = Request["fn"];
txtPopLName.Text = Request["ln"];
 }
Button1.Attributes.Add("onclick", "updateParentWindow()");
}
VB.NET code behind
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
Dim updateParentScript As String = "function updateParentWindow()" & vbCr & vbLf & " {                                                                               " & vbCr & vbLf & "   var fName=document.getElementById('txtPopFName').value;     " & vbCr & vbLf & "   var lName=document.getElementById('txtPopLName').value;   " & vbCr & vbLf & "   var arrayValues= new Array(fName,lName);" & vbCr & vbLf & "   window.opener.updateValues(arrayValues);       " & vbCr & vbLf & "   window.close(); " & vbCr & vbLf & " }"
Me.ClientScript.RegisterStartupScript(Me.[GetType](), "UpdateParentWindow", updateParentScript, True)
If Not IsPostBack Then
   txtPopFName.Text = Request("fn")
     txtPopLName.Text = Request("ln")
End If
   Button1.Attributes.Add("onclick", "updateParentWindow()")
End Sub

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