Matthew,

You need to look at Interfaces. Your classes, both the JdaUserLogin and the JdaBusinessWebPage, can implement an Interface (that would define the property that you need) ... then instead of casting to JdaBusinessWebPage, you would cast to IMyInterface instead.

~~Bonnie


>I subclassed mmBusinessWebPage to make my own JdaBusinessWebPage class. I added a property called BasePath on my JdaBusinessWebPage class. I base all of the pages on my site from my class, except for the login page, which needs to subclass mmBaseUserLogin to get the login functionality from Kevin's login class.
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>Then, I created a user control that I want to put on every page of my website, including the login page. This control needs to access the new BasePath property. For a user control to access a property on a custom class like this, I have to cast this.Page to my class JdaBusinessWebPage to be able to access the custom property. That works fine on every page of my site, except for the login screen, because of couse the login page is not subclassed from my JdaBusinessWebPage class.
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>I know multiple inheritance is not possible in C#. But I don't know the best way to get around this kind of dilemma because it will come up again. I need the functionality of one of the Mere Mortals classes and of my class at the same time.
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>BTW, I actually subclass the mmBaseUserLogin as JdaUserLogin as well so I don't actually directly instantiate any of the Mere Mortals classes. Maybe there is a way for my custom control to look at the current page to see what it is subclassed from so I know how to cast it. That sure seems like a lot of overhead though!
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>Matthew J. Price