How to get values from a dialog form in VB.NET?

Question

I have a \"frmOptions\" form with a textbox named \"txtMyTextValue\" and a button named \"btnSave\" to save and close the form when it\'s clicked,

then, I\'m showing thi

Answer 1

You can access the value from the frmOptions instance. However, this breaks the law of demeter.

You should expose the value with a property within your class. Public Class frmOptions

Public ReadOnly Property MyTextValue As String
    Get
        Return Me.txtMyTextValue.Text

    End Get
End Property

End Class

Then you can access the value:

 Private Sub ShowOptionsForm()
        Dim options = New frmOptions
        Dim frmOptionTextValue As String
        Dim frmOptionsDiagResult As DialogResult
        frmOptionsDiagResult = options.ShowDialog()
        If frmOptionsDiagResult = Windows.Forms.DialogResult.OK Then
            frmOptionTextValue = options.MyTextValue
        Else
            '...
        End If
    End Sub

Finally, if you are using a Dialog then make sure to set the Dialog Result for the button.