Re: Simulate button click to trigger postback

You should inspect what javascript is called at the onclick of the btnRefresh.
Then call that code in your refreshMainForm

It will have more or less the form like
WebForm_DoPostBackWithOptions(new
WebForm_PostBackOptions("ctl00$btnRefresh", "", true, "", "", false,
false));

or just call the onclick of the btnRefresh, which is probably better
for code maintenance.

// Ryan

On Jan 24, 2008 8:30 PM, Brady Kelly <[email protected]> wrote:
> I'm currently setting a flag and calling submit(), which causes a postback.
> Now I have the mysterious problem that when my Page_Load fires, and calls
> the refresh code, nothing happens, but when I click the Refresh button
> straight after that, the page does refresh.
>
> My code follows (the '$' function is a dirty shorthand for
> GetElementsByTagName).  In both cases InitGrid is called, but the page only
> refreshes when btnRefresh is clicked.
>
>
> function refreshMainForm() {
>    var myForm = $('m').contentDocument.forms[0];
>    debugger;
>    if (myForm.isRefresh)
>    {
>        myForm.isRefresh.value = "y";
>        myForm.submit();
>    }
> }
>
> protected void Page_Load(object sender, EventArgs e)
> {
>    if ((!IsPostBack) || (isRefresh.Value == "y"))
>    {
>        isRefresh.Value = "";
>        lblFormName.Text = MyController.FormName;
>        InitGrid();
>    }
> }
>
> protected void btnRefresh_Click(object sender, ImageClickEventArgs e)
> {
>    InitGrid();
> }
>
>
> > -----Original Message-----
> > From: Discussion of building .NET applications targeted for the Web
> > [mailto:[email protected]] On Behalf Of Shawn Wildermuth
> > Sent: 24 January 2008 09:08 PM
> > To: [email protected]
>
> > Subject: Re: [DOTNET-WEB] Simulate button click to trigger postback
> >
> > Can't you just call the PostBack Javascript method that is created
> > ASP.NET
> > pages?  View the source of the page and see what happens when the
> > button is
> > clicked.
> >
> > Thanks,
> >
> > Shawn Wildermuth
> > http://adoguy.com
> > http://wildermuthconsulting.com
> > Microsoft MVP (C#), MCSD.NET, Author and Speaker
> >
> > The Silverlight Tour is coming to a city near you!
> >
> > -----Original Message-----
> > From: Discussion of building .NET applications targeted for the Web
> > [mailto:[email protected]] On Behalf Of Brady Kelly
> > Sent: Thursday, January 24, 2008 1:45 PM
> > To: [email protected]
> > Subject: [DOTNET-WEB] Simulate button click to trigger postback
> >
> > I have tried many ways of forcing a page refresh from within
> > Javascript, but
> > my learned colleagues of implemented some sort of URL uniqueness scheme
> > to
> > prevent caching and I think this is messing me around.  I have a
> > Refresh
> > button on the page for a manual refresh, so how do I go about
> > triggering the
> > server side Click event for that button?
> >
> >
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