protected bool IsItemContainerSupported(ToolboxItemContainer container, IDesignerHost host)
{
if (container == null)
{
throw new ArgumentNullException("container");
}
if (host == null)
{
throw new ArgumentNullException("host");
}
ICollection creatorCollection = this.GetCreatorCollection(host);
this._lastState = host.GetService(typeof(DesignerToolboxInfo)) as DesignerToolboxInfo;
if (this._lastState == null)
{
this._lastState = new DesignerToolboxInfo(this, host);
host.AddService(typeof(DesignerToolboxInfo), this._lastState);
}
switch (GetFilterSupport(container.GetFilter(creatorCollection), this._lastState.Filter))
{
case FilterSupport.NotSupported:
return(false);
case FilterSupport.Supported:
return(true);
case FilterSupport.Custom:
if (this._lastState.ToolboxUser == null)
{
break;
}
return(this._lastState.ToolboxUser.GetToolSupported(container.GetToolboxItem(creatorCollection)));
}
return(false);
}
