From within the Page
you can cast the Master
page to a specific type (the type of your own Master
that exposes the desired functionality), using as
to side step any exceptions on type mismatches:
var master = Master as MyMasterPage;
if (master != null)
{
master.Method();
}
In the above code, if Master
is not of type MyMasterPage
then master
will be null
and no method call will be attempted; otherwise it will be called as expected.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…