How to Clicking "X" in Form, will not close it but hide it

how can i make my Form not to close but to Hide when user click on the "X" button on the form?

As i have a NotifyIcon that contain an Exit menu which actually does th开发者_C百科e Form Closing (i don't want the Form's "X" to close the form but to hide it).

thanks.

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Just implement the FormClosing event. Cancel the close and hide the form unless it was triggered by the notify icon's context menu. For example:

    Private CloseAllowed As Boolean

    Protected Overrides Sub OnFormClosing(ByVal e As System.Windows.Forms.FormClosingEventArgs)
        If Not CloseAllowed And e.CloseReason = CloseReason.UserClosing Then
            Me.Hide()
            e.Cancel = True
        End If
        MyBase.OnFormClosing(e)
    End Sub

    Private Sub ExitToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ExitToolStripMenuItem.Click
        CloseAllowed = True
        Me.Close()
    End Sub

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You need to handle Form.Closing event and set e.Cancel to true to stop the form from closing. To hide it call Hide method.

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Private Sub Form2_FormClosing(ByVal sender As Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles Me.FormClosing
        e.Cancel = True
        Me.Hide()

End Sub