protected virtual void OnDesignerCreated(DesignerEventArgs e)
{
if (DesignerCreated != null)
{
DesignerCreated(this, e);
}
}
protected virtual void OnDesignerDisposed(DesignerEventArgs e)
{
if (this.DesignerDisposed != null)
{
this.DesignerDisposed(this, e);
}
}
//<Snippet1>
// This example method creates a DesignerEventArgs using the specified designer host.
// Typically, this type of event args is created by the IDesignerEventService.
public DesignerEventArgs CreateComponentEventArgs(IDesignerHost host)
{
DesignerEventArgs args = new DesignerEventArgs(host);
// The designer host of the created or disposed document: args.Component
return(args);
}
/// <include file='doc\DocumentManager.uex' path='docs/doc[@for="DocumentManager.OnDesignerCreated"]/*' />
/// <devdoc>
/// The designer should call this after it successfully loads.
/// </devdoc>
public void OnDesignerCreated(DesignerEventArgs e)
{
designers.Add(e.Designer);
documents = null;
DesignerEventHandler handler = (DesignerEventHandler)eventTable[DOCUMENT_CREATED_EVENT];
if (handler != null)
{
handler.Invoke(this, e);
}
}
/// <summary>
/// This event is raised when the active tab (designer) changes.
/// </summary>
private void DesignersManager_DesignerChanged(object sender, DesignerEventArgs e)
{
if (e.Designer == null || e.Designer.File == null || !(e.Designer is ISavable))
{
this.Enabled = false;
this.Text = "Save as...";
return;
}
this.m_CurrentSavable = (e.Designer as ISavable);
this.Enabled = this.m_CurrentSavable.CanSave;
this.Text = "Save " + this.m_CurrentSavable.SaveName + " as...";
}
/// <include file='doc\DocumentManager.uex' path='docs/doc[@for="DocumentManager.OnDesignerDisposed"]/*' />
/// <devdoc>
/// The designer should call this before it disposes itself.
/// </devdoc>
public void OnDesignerDisposed(DesignerEventArgs e)
{
DesignerEventHandler handler = (DesignerEventHandler)eventTable[DOCUMENT_DISPOSED_EVENT];
if (handler != null)
{
handler.Invoke(this, e);
}
if (designers.Contains(e.Designer))
{
designers.Remove(e.Designer);
}
if (activeDesigner == e.Designer)
{
activeDesigner = null;
}
documents = null;
}
private void DesignerDisposed(object sender, DesignerEventArgs e)
{
UpdateStatus("Designer for " + e.Designer.RootComponent.Site.Name + " was disposed.");
}
private void OnDesignerEvent(object sender, DesignerEventArgs e)
{
// Displays designer event information on the console.
Console.WriteLine("Name of the root component of the created or disposed designer: " + e.Designer.RootComponentClassName);
}
public void Ctor(IDesignerHost designer)
{
var eventArgs = new DesignerEventArgs(designer);
Assert.Same(designer, eventArgs.Designer);
}
/// <summary>
/// Extends BeginInvoke so that when a state object is not needed, null does not need to be passed.
/// <example>
/// designereventhandler.BeginInvoke(sender, e, callback);
/// </example>
/// </summary>
public static IAsyncResult BeginInvoke(this DesignerEventHandler designereventhandler, Object sender, DesignerEventArgs e, AsyncCallback callback)
{
if (designereventhandler == null)
{
throw new ArgumentNullException("designereventhandler");
}
return(designereventhandler.BeginInvoke(sender, e, callback, null));
}
private void OnDesignerCreated(object sender, DesignerEventArgs e)
{
e.Designer.LoadComplete += new EventHandler(OnDesignerLoadComplete);
}
