Code Library

Using a layout file you could be able to preserve the changes to the layout made by the user.



Follow these steps to use a layout file at run time:



1 Define the layout at design time and then save it clicking in the "Save Layout File" button that is found in the "Layout Manager" tab of the UIPanelManager designer.



2 In the Load event of the form, load the layout from a file calling a procedure similar to the following:



In VB:

   Private Sub LoadLayout()

       Dim LayoutDir As String = "C:\PanelsLayout.xml"

       Dim LayoutStream As FileStream

       LayoutStream = New FileStream(LayoutDir, FileMode.Open)

       PanelManager1.LoadLayoutFile(LayoutStream)

       LayoutStream.Close()

   End Sub

In C#:

   private void LoadLayout()

   {

       string layoutDir = @"C:\PanelsLayout.xml";

       FileStream layoutStream;

       layoutStream = new FileStream(layoutDir, FileMode.Open);

       panelManager1.LoadLayoutFile(layoutStream);

       layoutStream.Close();

   }

3 (Optional) To preserve user changes to the layout, update each layout before it is changed in the CurrentLayoutChanging event.



In VB:

   Private Sub PanelManager1_CurrentLayoutChanging(ByVal sender As Object, _

       ByVal e As System.ComponentModel.CancelEventArgs) Handles _

       PanelManager1.CurrentLayoutChanging



       'To persist user changes in the current layout,

       'call the Update method explicitly before changing the layout

       If Not PanelManager1.CurrentLayout Is Nothing Then

           PanelManager1.CurrentLayout.Update()

       End If

   End Sub

In C#:

  private void panelManager1_CurrentLayoutChanging(object sender,

        System.ComponentModel.CancelEventArgs e)

  {

      //To persist user changes in the current layout,

      //call the Update method explicitly before changing the layout

      if (panelManager1.CurrentLayout != null)

      {

           panelManager1.CurrentLayout.Update();

      }

  }

4 In the FormClosing event of the form, save the layout file again to be able to preserve the changes the user did-



In VB:

   Private Sub Form1_FormClosing(ByVal sender As System.Object, ByVal e As System.Windows.Forms.FormClosingEventArgs) Handles MyBase.FormClosing



       Dim Result As DialogResult

       Dim LayoutDir As String

       Dim LayoutStream As FileStream



       Result = MessageBox.Show("Do you want to preserve the changes in the " & _

           "PanelManager layout?", "Preserve changes", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question)

       If Result = Windows.Forms.DialogResult.Cancel Then

           e.Cancel = True

       ElseIf Result = Windows.Forms.DialogResult.Yes Then

           LayoutDir = "C:\UIBarsLayout.xml"

           LayoutStream = New FileStream(LayoutDir, FileMode.Create)

           PanelManager1.SaveLayoutFile(LayoutStream)

           LayoutStream.Close()

       End If



   End Sub

In C#:

  private void Form1_FormClosing(object sender, FormClosingEventArgs e)

  {

      DialogResult result;

      string layoutDir;

      FileStream layoutStream;



      result = MessageBox.Show("Do you want to preserve the changes in the PanelManager layout?", "Preserve changes", MessageBoxButtons.YesNoCancel, MessageBoxIcon.Question);



       if (result == DialogResult.Cancel)

       {

            e.Cancel = true;

       }

       else if (result == DialogResult.Yes)

       {

            layoutDir = @"C:\PanelsLayout.xml";

            layoutStream = new FileStream(layoutDir, FileMode.Create);

            panelManager1.SaveLayoutFile(layoutStream);

            layoutStream.Close();

        }

}

Source Of Information : Janus v3.5 Help Files for VS 2008