Hello...

I have a masterpage that has a page as it`s content and a label. On the page I have a button where aI throw an exception. I want to write the exception message into the the masterpage`s label.

I've tried this mehods:

1.(Page.Master.FindControl("Label1") as Label).Text = ex.Message;

2.ClientScript.RegisterClientScriptBlock(this.GetType(), "11", "<script language='javascript' type='text/javascript'>document.getElementById('ctl00_Label1').innerText=" + ex.Message + ";</script>");

the code is in the catch(Exception ex) block.

Thanks

What happens with the first example you tried?  This worked for me.  It just throws an exception, and then sets the text of Label1 to exception's text.

protected void Button1_Click(object sender, EventArgs e)
    {
        try
        {
            throw new Exception("Testing");
        }
        catch (Exception ex)
        {
            (Page.Master.FindControl("Label1") as Label).Text = ex.Message;
        }
    }

OK... try puting the label into a usercontrol :)

I am 100% sure that will not work...

eusebiu:

OK... try puting the label into a usercontrol :)

I am 100% sure that will not work...

Yup, that makes a difference. 

You should be able to get to it through your user control.  Something along the lines of the following:

((Page.Master.FindControl("WebUserControl1") as Control).FindControl("Label1") as Label).Text = ex.Message;

I found my problem....

It enters twice in MasterPage's Page_Load method... how can I find all Load events?

I'm more used to how VB handles events.  Hopefully someone else will have a better understanding of this, but here are my thoughts.  For what it's worth:

The code that initializes all the controls that you make in the designer and adds the event handlers doesn't get created until runtime, so I don't think there is a way to view or change that.  You can turn "AutoEventWireup" off in the page directive for the MasterPage and then explicitly register for the On_Load event.  You can put onload="Page_Load" in the page's form tag to do that.  That may make a difference.  Also, if you have AutoEventWireup turned on, make sure you aren't assigning the Page_Load event anywhere else.

Sorry I can't be more help with this.  Hopefully someone else will be able to give you more info.

I`ve really got it now.. :)

I`ve put the Button the causes the exeception into an UpdatePanel control. I think that the MasterPage's Label is loaded with "" Text and, because the exeception comes later, it didn`t write the exeption  message in the Label because is not on the same thread  with Response(because of the UpdatePanel)... Am I right? If I`m right... how can I solve this problem?

Thanks!

Sure...

MasterPage: 

Page:

Button1_Click method

OK... I understand now...  I moved the button outside the updatepanel and now it works fine. But inside the update panel I have an updateprogress. How can I start this update progress? When the button was inside the updatepanel, the updateprogress worked fine.

Thanks

Hi,

The following Url has samples on associating an UpdateProgress Control with an UpdatePanel Control. Hope it helps.

http://ajax.asp.net/docs/overview/UpdateProgressOverview.aspx