Popup Window on Button Click for VB.NET

Hi Experts,

I have a VB.NET webform and need to create a popup window after the user clicks on either a button, or image that I place on the form.  The popup window will contain a paragraph explaining the function about the report form that the button or image will be sitting next to.  All static text and so forth inside the popup window.  I'm new to VB.NET so the more specific the instructions the better.  Thanks a lot!!
officerhandsomeAsked:
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natlozCommented:
MsgBox("Line 1." + vbCrLf + "Line 2." + vbCrLf + "Line 3.")
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officerhandsomeAuthor Commented:
I'm going to need way more than that.  I have no idea where to put that code.  Do I put it in the button click?(no, because I got a huge error)  Do I put that on the HTML side of the form, and if so, Where?
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Bob LearnedCommented:
That won't work on a web page without a little magic:)

Here's an example using Java:

http://www.codeguru.com/Csharp/.NET/net_asp/scripting/article.php/c5337/

Bob
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officerhandsomeAuthor Commented:
Thanks Bob, took a little work but I got it down.  I'll learn that Javascript before long!!!

Thanks
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ptakjaCommented:
Here's the code TheLearnedOne reference converted to VB.Net from C#

Private Sub Button1_Click(ByVal sender As Or, ByVal e As System.EventArgs) Handles Button1.Click

  Dim PopUpWindowPage As String = "PopUpWindow.aspx"

  'Script for popup window
  Dim PopupScript As New StringBuilder   'StringBuilder is more efficient than appending strings...
  PopupScript.Append("\n<script language=JavaScript id='PopupWindow'>\n")
  PopupScript.Append("var confirmWin = null; \n")
  PopupScript.Append("confirmWin = window.open('"+PopUpWindowPage+"',  'Your Content Goes HERE', 'width=455,height=435, status'); \n")
  PopupScript.Append("if((confirmWin != null) && (confirmWin.opener==null)) { \n")
  PopupScript.Append("  confirmWin.opener = self; \n")
  PopupScript.Append("}\n")
  PopupScript.Append("</script>")

  //Script for displaying popup window information in main window
  Dim ParentLoadScript As New StringBuilder()
  ParentLoadScript.Append("\n<script language=JavaScript id='ParentLoad'>\n")
  ParentLoadScript.Append("function addOption(strValue){ \n")
  ParentLoadScript.Append("var objForm = document.forms['Form1'];\n")
  ParentLoadScript.Append("var objFormField = objForm.elements['TextBox1'];\n")
  ' ParentLoadScript.Append("alert(objFormField);\n")
  ParentLoadScript.Append(" if (objFormField != null))
  ParentLoadScript.Append("objFormField.value = (strValue); }\n")
  ParentLoadScript.Append("</script>")

  'Check whether they are already registered
  If Not Me.IsStartupScriptRegistered("PopupWindow") Then
    ' Register the script
    Me.RegisterStartupScript("PopupWindow", PopupScript.ToString)
  End If


  ' Check whether they are already registered
  If Not Me.IsStartupScriptRegistered("ParentLoad") Then
    ' Register the script
    Me.RegisterStartupScript("ParentLoad",ParentLoadScript.ToString)
  End If
End Sub

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officerhandsomeAuthor Commented:
So how would I make this line of code:

<input type="button" onClick="pop_window()" Value="Open Window" style="Z-INDEX: 153; LEFT: 248px; POSITION: absolute; TOP: 160px">

work so that it was a graphic image that I wanted the user to click on to raise the popup window rather than a button?
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ptakjaCommented:
<img alt="" src="..\images\button.jpg" onclick="Pop_Window()" />
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