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MDI Layout in VB.NET

Write a Program to Implement a MDI application. It should have File menu with option New, Close, Close All and Exit. It should also have window menu to arrange the child forms like Tile Horizontal, Tile Vertical, Cascade and Arrange Icons.
CODING :

Public Class Form1
    Private Sub NewToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles NewToolStripMenuItem.Click
        Dim newMDIChild As New Form
        newMDIChild.MdiParent = Me
        newMDIChild.Show()
        Dim newMDIChild2 As New Form
        newMDIChild2.MdiParent = Me
        newMDIChild2.Show()
        Dim newMDIChild3 As New Form
        newMDIChild3.MdiParent = Me
        newMDIChild3.Show()
    End Sub
    Private Sub CloseAllToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CloseAllToolStripMenuItem.Click
        For Each child As Form In Me.MdiChildren
            child.Close()
        Next child
    End Sub
    Private Sub ExitToolStripMenuItem1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExitToolStripMenuItem1.Click
        End
    End Sub

     Private Sub TileHorizontalToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TileHorizontalToolStripMenuItem.Click
        Me.LayoutMdi(MdiLayout.TileHorizontal)
    End Sub
    Private Sub TileVerticalToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles TileVerticalToolStripMenuItem.Click
        Me.LayoutMdi(MdiLayout.TileVertical)
    End Sub
    Private Sub CascadeToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CascadeToolStripMenuItem.Click
        Me.LayoutMdi(MdiLayout.Cascade)
    End Sub
    Private Sub ArrangeIconToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ArrangeIconToolStripMenuItem.Click
        Me.LayoutMdi(MdiLayout.ArrangeIcons)
    End Sub
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Me.WindowState = FormWindowState.Maximized
    End Sub
    Private Sub CloseToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CloseToolStripMenuItem.Click
        If ActiveMdiChild IsNot Nothing Then
            ActiveMdiChild.Close()
        End If
    End Sub
End Class
DESIGNING:


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