[RESOLVED] How to change Label name from BackgroundWorker?

[Legjendat]

I just want to to change a label name from the backgroundworker, the code is plain simple:

label1.text = WebBrowser1.DocumentTitle

and the error returned would be "Specified cast is not valid".

Now running the code from a button would do the job, but from the bgworker not, and I can't seem to get around it.

[Grimfort]

The first note (marked in yellow) in the helpfile tells you which events you can access UI components. Have a read to help you understand why you are getting the problem.

[Legjendat]

honestly, the note file just tells me I can't do it that way, not more than that.

[Grimfort]

Maybe you are not reading the note, I'll copy out the bit I mean to help you:

Note
You must be careful not to manipulate any user-interface objects in your DoWork event handler. Instead, communicate to the user interface through the ProgressChanged and RunWorkerCompleted events.

[BlindSniper]

Try This

    Delegate Sub SetLabelTextInvoker(ByVal label As Label, ByVal Text As String)
    Sub SetLabelText(ByVal Label As Label, ByVal Text As String)
        If Label.InvokeRequired = True Then
            Label.Invoke(New SetLabelTextInvoker(AddressOf SetLabelText), Label, Text)
        Else
            Label.Text = Text
        End If
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        BackgroundWorker1.RunWorkerAsync()

    End Sub

    Private Sub BackgroundWorker1_DoWork(ByVal sender As System.Object, ByVal e As System.ComponentModel.DoWorkEventArgs) Handles BackgroundWorker1.DoWork
        SetLabelText(Label1, "This text Was set From A background worker")
    End Sub