Custom Dialog Box example : ChooseDateDialog

05 Apr

Here’s a complete example on how to show dialog box and retrieve user input. More details on Dialog Box from Dialog Boxes in Windows Forms. The ChooseDateDialog is a simple custom dialog box which is used to prompt for a date. Its functionality is like this:

First, use a simple button to call ChooseDateDialog:

The ChooseDateDialog consists of a DateTimePicker and OK/Cancel buttons:

When OK button is pressed, the parent form retrieve the chosen date value:

The code of ChooseDateDialog is as follow:

Imports System.Windows.Forms

Public Class ChooseDateDialog
    'Use public property to return user input value to parent form
    'The date chosen by user using DateTimePicker
    Public ReadOnly Property ChosenDate() As Date
            Return Me.DateTimePicker1.Value
        End Get
    End Property

    Private Sub OK_Button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK_Button.Click
        Me.DialogResult = System.Windows.Forms.DialogResult.OK
    End Sub

    Private Sub Cancel_Button_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Cancel_Button.Click
        Me.DialogResult = System.Windows.Forms.DialogResult.Cancel
    End Sub

End Class

The code below is from the parent form which calls ChooseDateDialog.

Public Class DialogTest

    Private Sub ButtonChooseDate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ButtonChooseDate.Click
        Dim chooseDateDialog As New ChooseDateDialog

        If chooseDateDialog.DialogResult = Windows.Forms.DialogResult.OK Then
            'When user press OK button
            'Retrieve the chosen date from Dialog Box
            Me.Label1.Text = chooseDateDialog.ChosenDate.ToString
        End If

    End Sub

End Class
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Posted by on April 5, 2012 in .NET, VB, Winform



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