I am trying to convert the example provided in MSDN article Creating Dynamic Data Entry User Interfaces to C#, but am stuck at the following code:
CType(dq, IUIBuildingBlock).QuestionText = reader("QuestionText")
How do I convert the above VB.NET statement to C#?
C programming language is a machine-independent programming language that is mainly used to create many types of applications and operating systems such as Windows, and other complicated programs such as the Oracle database, Git, Python interpreter, and games and is considered a programming foundation in the process of ...
C is a structured, procedural programming language that has been widely used both for operating systems and applications and that has had a wide following in the academic community. Many versions of UNIX-based operating systems are written in C.
C is a general purpose computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system. It was named 'C' because many of its features were derived from an earlier language called 'B'.
In C#, you can specify a cast by putting the type you want to cast to in parenthesis in front of the reference variable that you want to cast ((type)instance
).
So, to cast the object (dq
) to the type IUIBuildingBlock
, you could use the following code:
((IUIBuildingBlock)dq).QuestionText = reader("QuestionText");
(Note that this will throw an exception if the cast is done on an object that doesn't implement IUIBuildingBlock
, but so will CType
, so I assume that is not a problem.)
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