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 use Events to take care of this. With this approach the Settings Form does not have to be Modal and the user can click the Save Button at any time.

In frmOptions:

'You can expand the signature to take more than just a single String.
Friend Event SavedOptions(ByVal strData As String)

Private Sub btnSave_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnSave.Click

    RaiseEvent SavedOptions(txtMyTextValue.Text)

End Sub

In frmMain:

Private Sub ShowOptionsForm()

    Dim options = New frmOptions

    AddHandler options.SavedOptions, AddressOf OnOptionsSave

    options.ShowDialog()

End Sub

Private Sub OnOptionsSave(ByVal strData As String)

    'Or whatever you want to do on frmMain with Options Data.
    MsgBox(strData)

End Sub