try - catch - finally

[hhrafn]

Ok, this I sould know .. however... I'm trying to do something like this: try { myCalss wee = new myClass(); wee.test(); } catch(Exception ee) { Response.Write(ee.ToString()); } finally { wee.Dispose(); } howwever.. wee.Dispose() doesn't work... it doesn't seem to be available at that location .. Where am I going wrong here ? :confused: Thanks alot.

[Plunging_Falcon]

why are you even calling the Dispose method? that's what Garbage collectors are for. If you mean by "not available" that you get a "object not set to..." exception then it can be caused by your constructor throwing an exception (not creating the object) and that's why it doesn't exist in the finally block. you need to check: if (wee != null) wee.{method}

[hhrafn]

Actually I'm making a class that's handling my sql connections. And the plan was to close the connection on dispose. What I mean with "not available" is that Visual Studio doesn't recognize it in the code editor.

[hhrafn]

..Or is the Dispose function called at the end of the run of the page?

[Jeff Martin]

wee is out of scope in the finally block. In C#, variables only exist in the scope in which they are declared. Basically whichever set of { } the variable is declared in is the only place you can access it. Plus there is a problem of calling a method on an object in a finally block when you are creating it in the try. What happens if an exception is thrown in the myClass() constructor? You get an unhandled "Object reference not set to an instance of an object" exception. Try this... myClass wee = null; try { wee = new myClass(); wee.test(); } catch (Exception ex) { Response.Write(ex.ToString()); } finally { if (wee != null) wee.Dispose(); } Jeff Martin My Blog

[hhrafn]

I get a build error: 'myClass' does not contain definition for 'Dispose' My VisualStudio says that myClass only countains a few functions.. btw, Dispose calls the deconstructor automatically, I don't have to define the Dispose() function.. right? thanks.

[Jeff Martin]

No, don't override it unless you need to. I thought you were just using that as an example. Jeff Martin My Blog

[Luis Alonso Ramos]

AFAIK, to have a Dispose method, you must derive (and implement) from IDisposable. -- LuisR

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Luis Alonso Ramos Intelectix - Chihuahua, Mexico Not much here: My CP Blog!