'objType' is not defined… Actually, it is,

2019-02-19 17:55发布

As you seen in this picture below, for some reason my DirectCast wont except ANYTHING for the second argument. It says it requires a type, but, it won't take any object at all!

enter image description here

Thanks for any help! I'm using VB.net so all .net answers are acceptable :)

EDIT

Ok, so apparently I'm not giving it the right kind of type. Could somebody please clarify this? Assuming the type it needs to cast to is gridElement, what should I replace objType with?

2条回答
ら.Afraid
2楼-- · 2019-02-19 18:11

Its expecting a "Type", not a "Type Object".

What is the return value of the function?

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做自己的国王
3楼-- · 2019-02-19 18:17

DirectCast requires an object prototype (i.e. just giving it the intended class name) rather than a System.Type descriptor object. To cast an object using a System.Type, you will want to utilize CTypeDynamic():

Return CTypeDynamic(createElementByIdAndLayer.MemberwiseClone(), objType)

The error is essentially telling you a class with the type name "objType" does not exist.

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