Removing DockControl Pane when pressing the close button

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Removing DockControl Pane when pressing the close button

Suvinay posted over 12 years ago

Hi All,

I ran across the same issue as described in the following link, http://community.infragistics.com/forums/t/1113.aspx

I tried the solution proposed and it worked to a large extent. When I click on the X button I get a panehidden message, where I close my control and dispose the dockcontrolpane. When I save and load the layout, I get a empty panel in the top left corner. After playing around with it quite a bit I couldn't get around removing the blank panel.

Is there a solution for this? Can you point me in the right direction ?

See my creation code and remove code below,

.// My usercontrol

LiveVariableDataControl wpf = new LiveVariableDataControl();

wpf.Size = new Size(200, 200);

UltraTile tile = new UltraTile();

tile.Control = wpf;

UltraTilePanel tilep = new UltraTilePanel();

tilep.TileSettings.ShowCloseButton = Infragistics.Win.DefaultableBoolean.True;

tilep.Appearance.BackColor = Color.Transparent;

tilep.add(tile);

DockableControlPane dockableControlPane1 = new DockableControlPane(tilep);

dockableControlPane1.Size = new Size(210, 210);

dockableControlPane1.Settings.Appearance.BackColor = Color.Transparent;

DockableControlPane dockableControlPane1 = new DockableControlPane(tilep);

dockableControlPane1.Size = new Size(210, 210);

dockableControlPane1.Settings.Appearance.BackColor = Color.Transparent;

DockAreaPane flpane = MainFormDockManager.DockAreas.Add(DockedLocation.DockedLeft);

flpane.Panes.Add(dockableControlPane1);

flpane.Closed = false;

flpane.Tag = id;

flpane.Size = new System.Drawing.Size(264, 583);

flpane.Settings.Appearance.BackColor = Color.Transparent;

//Pane Hidden method

private void MainFormDockManager_PaneHidden(object sender, PaneHiddenEventArgs e)

{

removeControlPaneAndChildren(e.Pane);

e.Pane.Closed = true;

}

private void removeControlPaneAndChildren(DockableControlPane pane)

{

UltraTilePanel tilep = pane.Control as UltraTilePanel;

if (tilep != null)

{

while (tilep.Tiles.Count > 0)

{

UltraTile tile = tilep.Tiles[0];

IUIControl ctrl = (IUIControl)tile.Control;

ctrl.close();

tile.Control.Dispose();

tilep.Tiles.Remove(tile);

tile.Dispose();

}

pane.Dispose();

}

Any help is greatly appreciated

Thanks!

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Georgi posted over 12 years ago
Hello Ssinha,

I`m not sure that I understand well your scenario, but when I try the code below I`m able to remove the hiden Panes from my ControlPanesCollection.

private bool IsRemoved;

private void ultraDockManager1_PaneHidden(object sender, PaneHiddenEventArgs e)

{

    if (!IsRemoved)

    {

        IsRemoved = true;

        ultraDockManager1.ControlPanes.Remove(e.Pane.Control);

        IsRemoved = false;

    }



}

Please take a look at the attached video with debuging of my test sample. Please take a look at the total numbers of the Panes at the beggining and at the end of the test. Let me know if you think that I misunderstand your scenario or if you have any questions.
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255

Suvinay posted over 12 years ago in reply to Georgi

Hi Georgi,

Thanks for looking in to this issue.

I reproduced this issue in the sample app infragistics provided when you install the software. I have added the sample project. I have upgraded the project to run in VS2010. Please take a look.

I am using a UltraTilePanel programmatically and docking it. See the code snippet below for adding the UltraTilePanel,

  private void addDockPanelMenuItem_Click(object sender, EventArgs e)
        {
            UltraTilePanel tp = new UltraTilePanel();
            tp.TileSettings.ShowCloseButton = DefaultableBoolean.True;
            tp.Appearance.BackColor = Color.Transparent;
            tp.Text = "Test TilePanel";
            tp.Tag = Guid.NewGuid().ToString();
            System.Diagnostics.Trace.WriteLine(tp.Tag.ToString());

            DockableControlPane dockcp = new DockableControlPane(tp);
            dockcp.Size = new Size(210, 210);
            dockcp.Settings.Appearance.BackColor = Color.Transparent;
            dockcp.Text = "Test Control Pane";

            DockAreaPane flpane = ultraDockManager1.DockAreas.Add(DockedLocation.DockedLeft);
            flpane.Panes.Add(dockcp);
            flpane.Closed = false;
            flpane.Size = new System.Drawing.Size(264, 583);
            flpane.Settings.Appearance.BackColor = Color.Transparent;

        }

I remove the UltraTilePanel when the user closes the dockcontrolpane. See the code snippet below,

        private void ultraDockManager1_PaneHidden(object sender, PaneHiddenEventArgs e)
        {
            UltraTilePanel tp = e.Pane.Control as UltraTilePanel;

            if (tp != null)
            {
                this.LogPaneEvent("[PaneHidden]", e.Pane);
                System.Diagnostics.Trace.WriteLine(tp.Tag.ToString());
                ultraDockManager1.ControlPanes.Remove(tp);
                tp.Dispose();
                tp = null;
            }
        }

To reproduce the issue, remove the following 2 lines from the paneHidden method,

                tp.Dispose();
                tp = null;

Now when you close the dockcontrolpane, You will see a dark Panel on the left top. What it says to me is, when I remove the control from the dock control pane, it doesn't actually remove, I have to explicitly call the Dispose() and set it to null to remove it completely.

Guess that solves my problem but I hoped it worked nicely since I was using Infragistics toolset.

Regards,

-Suvinay

Docking Demo CS.zip
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