How to show/hide webpart programmatically ?

Sometimes, we need to show and hide webparts programmatically based on some events. This can be done by the following code:

SPWeb myWeb = SPContext.Current.Web;
myWeb.AllowUnsafeUpdates = true;

Microsoft.SharePoint.WebPartPages.SPLimitedWebPartManager mgr = null;
mgr = myWeb.GetLimitedWebPartManager(
"default.aspx",
System.Web.UI.WebControls.WebParts.PersonalizationScope.Shared);
foreach (System.Web.UI.WebControls.WebParts.WebPart myWebPart in mgr.WebParts)
{
// If this is the webpart we want to change...
if (myWebPart.Title == "SomeWebpartName")
{
myWebPart.Hidden = true;
mgr.SaveChanges(myWebPart);
break;
}
}