Suppress Form Action

A custom server control has a Button.
Namespace Confirm
Public Class ShowConfirm : Inherits Button
Private strConfirmMsg As String
Public Property ConfirmMessage() As String
Get
ConfirmMessage = strConfirmMsg
End Get
Set(ByVal value As String)
strConfirmMsg = value
End Set
End Property
Protected Overrides Sub AddAttributesToRender(ByVal Output As
HtmlTextWriter)
MyBase.AddAttributesToRender(Output)
Output.AddAttribute(HtmlTextWriterAttribute.OnClick,
"ConfirmMsg()")
End Sub
Protected Overrides Sub RenderContents(ByVal Output As
HtmlTextWriter)
Output.Write(vbCrLf)
Output.Write("<script language='JavaScript'>")
Output.Write(vbCrLf)
Output.Write("function ConfirmMsg(){")
Output.Write(vbCrLf)
Output.Write("var answer = confirm('")
Output.Write(strConfirmMsg)
Output.Write("')")
Output.Write(vbCrLf)
Output.Write("location.href = window.location.href +
'?Proceed=' + answer")
Output.Write(vbCrLf)
Output.Write("}")
Output.Write(vbCrLf)
Output.Write("</script>")
End Sub
End Class
End Namespace
Using VBC, I compiled the above into 'Confirm.dll'. This is how I am
using the above custom control in an ASPX page (assume that the ASPX
page is named Confirm.aspx):
<%@dotnet.itags.org. Register Assembly="Confirm" Namespace="Confirm" TagPrefix="CC" %>
<form EnableViewState="true" runat="server">
<CC:ShowConfirm ID="ShowConfirm1" ConfirmMessage="WANNA EXIT?"
Text="EXIT" runat="server"/>
</form>
Note the
Output.Write("location.href = window.location.href + '?Proceed=' +
answer")
line in the VB class file code. When the ASPX page gets rendered, it
displays a Button. Conventionally, when a Button is clicked in an ASPX
page, it posts back to itself using the POST method. When the Button in
the above custom control is clicked, a JavaScript confirm dialog
pops-up with 2 buttons - 'OK' & 'Cancel'. If 'OK' is clicked, the value
of the JavaScript variable 'answer' is true & if 'Cancel' is clicked,
the value of the variable 'answer' is false.
What I want is irrespective of whether a user clicks the 'OK' or
'Cancel' button in the confirm dialog, instead of posting back to
itself using the conventional POST method, I want the ASPX page to post
to itself BUT with a querystring 'Proceed=<value>' appended i.e. I want
to suppress the conventional post & instead add the querystring so that
I can find out whether the user has clicked the 'OK' button or the
'Cancel' button in the confirm dialog. If the user clicks 'OK', he will
be taken to
http://myserver/aspx/Confirm.aspx?Proceed=true
If the user clicks 'Cancel' in the confirm dialog, he will be taken to
http://myserver/aspx/Confirm.aspx?Proceed=false
Can this be done in anyway?Anyone?
rn5a@.rediffmail.com wrote:
> A custom server control has a Button.
> Namespace Confirm
> Public Class ShowConfirm : Inherits Button
> Private strConfirmMsg As String
> Public Property ConfirmMessage() As String
> Get
> ConfirmMessage = strConfirmMsg
> End Get
> Set(ByVal value As String)
> strConfirmMsg = value
> End Set
> End Property
> Protected Overrides Sub AddAttributesToRender(ByVal Output As
> HtmlTextWriter)
> MyBase.AddAttributesToRender(Output)
> Output.AddAttribute(HtmlTextWriterAttribute.OnClick,
> "ConfirmMsg()")
> End Sub
> Protected Overrides Sub RenderContents(ByVal Output As
> HtmlTextWriter)
> Output.Write(vbCrLf)
> Output.Write("<script language='JavaScript'>")
> Output.Write(vbCrLf)
> Output.Write("function ConfirmMsg(){")
> Output.Write(vbCrLf)
> Output.Write("var answer = confirm('")
> Output.Write(strConfirmMsg)
> Output.Write("')")
> Output.Write(vbCrLf)
> Output.Write("location.href = window.location.href +
> '?Proceed=' + answer")
> Output.Write(vbCrLf)
> Output.Write("}")
> Output.Write(vbCrLf)
> Output.Write("</script>")
> End Sub
> End Class
> End Namespace
> Using VBC, I compiled the above into 'Confirm.dll'. This is how I am
> using the above custom control in an ASPX page (assume that the ASPX
> page is named Confirm.aspx):
> <%@. Register Assembly="Confirm" Namespace="Confirm" TagPrefix="CC" %>
> <form EnableViewState="true" runat="server">
> <CC:ShowConfirm ID="ShowConfirm1" ConfirmMessage="WANNA EXIT?"
> Text="EXIT" runat="server"/>
> </form>
> Note the
> Output.Write("location.href = window.location.href + '?Proceed=' +
> answer")
> line in the VB class file code. When the ASPX page gets rendered, it
> displays a Button. Conventionally, when a Button is clicked in an ASPX
> page, it posts back to itself using the POST method. When the Button in
> the above custom control is clicked, a JavaScript confirm dialog
> pops-up with 2 buttons - 'OK' & 'Cancel'. If 'OK' is clicked, the value
> of the JavaScript variable 'answer' is true & if 'Cancel' is clicked,
> the value of the variable 'answer' is false.
> What I want is irrespective of whether a user clicks the 'OK' or
> 'Cancel' button in the confirm dialog, instead of posting back to
> itself using the conventional POST method, I want the ASPX page to post
> to itself BUT with a querystring 'Proceed=<value>' appended i.e. I want
> to suppress the conventional post & instead add the querystring so that
> I can find out whether the user has clicked the 'OK' button or the
> 'Cancel' button in the confirm dialog. If the user clicks 'OK', he will
> be taken to
> http://myserver/aspx/Confirm.aspx?Proceed=true
> If the user clicks 'Cancel' in the confirm dialog, he will be taken to
> http://myserver/aspx/Confirm.aspx?Proceed=false
> Can this be done in anyway?