Visual Basic

cstrader232 wrote:

It's my impression that the MTA threading is a different animal entirely...that the GUI is based on calls from STA threads.

Am I wrong about that?

Imports System.Threading
 
Public Class Form1
 
    Private Delegate Sub UpdateTextBoxDelegate(ByVal Message As String)
 
    Private Sub UpdateTextBox(ByVal Message As String)
        TextBox1.AppendText(message & Environment.NewLine)
    End Sub
 
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) _
        Handles Button1.Click
        For x As Integer = 1 To 20
            Dim t As New Thread(AddressOf GenerateData)
            t.SetApartmentState(ApartmentState.MTA)
            t.Start()
        Next
    End Sub
 
    Private Sub GenerateData()
        Dim callback As New UpdateTextBoxDelegate(AddressOf UpdateTextBox)
 
        For x As Integer = 1 To 10
            TextBox1.Invoke(callback, New Object() { _
                String.Format("Thread Id: {0}  Apartment: {1}  Message: {2}", _
                    Thread.CurrentThread.ManagedThreadId, _
                    Thread.CurrentThread.GetApartmentState().ToString(), _
                    x)})
        Next
    End Sub
End Class

mysybet123 wrote:

so is possible to use in SelectionFormula a standart function of vb.net

diebugger wrote:

but this object cannot be associate with events...

diebugger wrote:

I can do that within a class or a structure, but not within a matrix of some kind of object/class.

diebugger wrote:

but not within a matrix of some kind of object/class.

diebugger wrote:

think about coding a windows application to play puzzle, this is a form with two panels and the programs read from a file the numbers of puzzle's items. Then it loads items into Panel1 and you (user) must drag&drop items into Panel2.

For i=1 to x<br />
  load button <br />
  button index = i 'this will get you the name of button e.g. button1(1)<br />
Next i