//=------------------------------------------------------------------=
// addAndRemoveButton_Click
//=------------------------------------------------------------------=
/// <summary>
/// In this function, we will add, remove and reorder frames from
/// the TaskPane control, so you can see how it's done. Basically,
/// it's just a collection like any other control with a collection
/// of controls hanging off it. We will show you a few different
/// ways to do this.
/// </summary>
///
private void addAndRemoveButton_Click
(
System.Object sender,
System.EventArgs e
)
{
TaskFrame tf;
//
// first, we'll go and create a new TaskFrame control to add to
// our parent TaskPane. This isn't terribly difficult, and
// mirrors closely what is done in the code generated by the
// Forms Designer.
//
tf = new TaskFrame();
tf.BackColor = Color.Blue;
tf.CollapseButtonVisible = true;
tf.Text = "Newly Added Frame";
// Add it to the parent . You could also use the code:
// Me.TaskPane1.Controls.Add(tf)
//
this.TaskPane1.TaskFrames.Add(tf);
//
// now, let's go and delete one of the frames that we don't want
//
this.TaskPane1.TaskFrames.Remove(this.TaskFrame0);
//
// Did you notice in the designer that there was a hidden
// TaskFrame there with its Visible property set to False?
// It still shows up in the Designer, but not at runtime until
// its Visible property is set to True ...
//
this.hiddenTaskFrame.Visible = true;
//
// okay, let's go and add TaskFrame0 back, but this time at the
// end of the list of frames ...
//
this.TaskPane1.Controls.Add(this.TaskFrame0);
}
//=------------------------------------------------------------------=
// OnSelectionChanged
//=------------------------------------------------------------------=
/// <summary>
/// The ISelectionService tells us when the selection has changed.
/// We'll use this to help us track which TaskFrame was last selected
/// by the user.
/// </summary>
///
private void OnSelectionChanged(object sender, System.EventArgs e)
{
ISelectionService selsvc;
TaskFrame tf;
object c;
selsvc = (ISelectionService)GetService(typeof(ISelectionService));
if (selsvc != null)
{
c = selsvc.PrimarySelection;
if (c != null)
{
if (c is TaskFrame)
{
tf = (TaskFrame)c;
this.m_lastFrameSelected = tf;
tf.Parent.Refresh();
}
}
}
checkVerbStatus();
}
//=------------------------------------------------------------------=
// checkVerbStatus
//=------------------------------------------------------------------=
/// <summary>
/// Figures out whether we should enable/disable the Remove TaskFrame
/// verb.
/// </summary>
///
private void checkVerbStatus()
{
TaskPane tp;
if (this.m_removeVerb == null)
{
return;
}
//
// If there's a last frame active, make sure it's still valid.
//
if (this.m_lastFrameSelected != null)
{
tp = (TaskPane)this.Control;
if (tp != null)
{
if (!tp.TaskFrames.Contains(this.m_lastFrameSelected))
{
this.m_lastFrameSelected = null;
}
}
}
//
// Okay, if we've still got it, then go and enable the remove verb
//
if (this.m_lastFrameSelected != null)
{
this.m_removeVerb.Enabled = true;
}
else
{
this.m_removeVerb.Enabled = false;
}
}
