Public Class frmAbfertigungTR_ExportAnz Sub New() ' Dieser Aufruf ist für den Designer erforderlich. InitializeComponent() ' Fügen Sie Initialisierungen nach dem InitializeComponent()-Aufruf hinzu. End Sub Private Sub frmAnkunftSetzen_Load(sender As Object, e As EventArgs) Handles Me.Load txtAnz.Focus() End Sub Private Sub btn_Click(sender As Object, e As EventArgs) Handles btn.Click lblError.Visible = False If txtAnz._value = "" OrElse Not IsNumeric(txtAnz._value) Then Me.DialogResult = DialogResult.None : lblError.Visible = True : Exit Sub If txtAnzPos._value = "" OrElse Not IsNumeric(txtAnzPos._value) Then Me.DialogResult = DialogResult.None : lblError.Visible = True : Exit Sub If CInt(txtAnz._value) <= 0 Then Me.DialogResult = DialogResult.None : lblError.Visible = True : Exit Sub If CInt(txtAnzPos._value) <= 0 Then Me.DialogResult = DialogResult.None : lblError.Visible = True : Exit Sub Me.DialogResult = DialogResult.OK End Sub Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click Me.DialogResult = DialogResult.Cancel End Sub Private Sub txtAnz_KeyUp(sender As Object, e As KeyEventArgs) Handles txtAnz.KeyUp, txtAnzPos.KeyUp If e.KeyCode = Keys.Return Then btn.Focus() btn.PerformClick() End If End Sub End Class