/// <summary>
/// Extends BeginInvoke so that when a state object is not needed, null does not need to be passed.
/// <example>
/// toolstripcontentpanelrendereventhandler.BeginInvoke(sender, e, callback);
/// </example>
/// </summary>
public static IAsyncResult BeginInvoke(this ToolStripContentPanelRenderEventHandler toolstripcontentpanelrendereventhandler, Object sender, ToolStripContentPanelRenderEventArgs e, AsyncCallback callback)
{
if (toolstripcontentpanelrendereventhandler == null)
{
throw new ArgumentNullException("toolstripcontentpanelrendereventhandler");
}
return(toolstripcontentpanelrendereventhandler.BeginInvoke(sender, e, callback, null));
}
protected virtual void OnRenderToolStripContentPanelBackground(ToolStripContentPanelRenderEventArgs e)
{
ToolStripContentPanelRenderEventHandler eh = (ToolStripContentPanelRenderEventHandler)Events [RenderToolStripContentPanelBackgroundEvent];
if (eh != null)
{
eh(this, e);
}
}
public void DrawToolStripContentPanelBackground(ToolStripContentPanelRenderEventArgs e)
{
OnRenderToolStripContentPanelBackground(e);
ToolStripContentPanelRenderEventHandler eh = Events[EventRenderToolStripContentPanelBackground] as ToolStripContentPanelRenderEventHandler;
if (eh != null)
{
eh(this, e);
}
}
public void DrawToolStripContentPanelBackground(ToolStripContentPanelRenderEventArgs e)
{
this.OnRenderToolStripContentPanelBackground(e);
ToolStripContentPanelRenderEventHandler handler = this.Events[EventRenderToolStripContentPanelBackground] as ToolStripContentPanelRenderEventHandler;
if (handler != null)
{
handler(this, e);
}
}
public void ToolStripRenderer_DrawToolStripContentPanelBackground_Invoke_CallsRenderToolStripContentPanelBackground(ToolStripContentPanelRenderEventArgs eventArgs)
{
var renderer = new SubToolStripRenderer();
int callCount = 0;
ToolStripContentPanelRenderEventHandler handler = (sender, e) =>
{
Assert.Same(renderer, sender);
Assert.Same(eventArgs, e);
callCount++;
};
// Call with handler.
renderer.RenderToolStripContentPanelBackground += handler;
renderer.DrawToolStripContentPanelBackground(eventArgs);
Assert.Equal(1, callCount);
// Remove handler.
renderer.RenderToolStripContentPanelBackground -= handler;
renderer.DrawToolStripContentPanelBackground(eventArgs);
Assert.Equal(1, callCount);
}
