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 want to capture the information from the dialog only if the result is OK (user presses Save instead of Cancel or closes the dialog some other way), so do this:

Private Sub ShowOptionsForm()
    Dim options = New frmOptions

    ' Did the user click Save?
    If options.ShowDialog() = Windows.Forms.DialogResult.OK Then
        ' Yes, so grab the values you want from the dialog here
        Dim textBoxValue As String = options.txtMyTextValue.Text
    End If
End Sub

Now inside of your dialog form, you need to set the result Windows.Forms.DialogResult.OK when the user clicks the button that corresponds to the OK action of the dialog form, like this:

Public Class frmOptions
    Private Sub btnSave_Click(sender As Object, e As EventArgs) Handles btnSave.Click
        ' Set the result to pass back to the form that called this dialog
        Me.DialogResult = Windows.Forms.DialogResult.OK
    End Sub
End Class