C# Added an external reference but cannot use!

Posted on 2011-09-07
Last Modified: 2012-05-12

I'm very new to C# and not doing to well. I have added an external reference that is now showing in the solution explorer window. The thing is how do I reference it's properties and methods?

Question by:mcs26
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2

Accepted Solution

yesthatbob earned 500 total points
ID: 36498025
To get the namespaces and classes exposed by the reference, right-click on it in the solution explorer and select View in Object Browser. You can then simply refer to the classes defined in the reference in your code using the fully qualified namespace, or you can add a using statement at the top of your class file to reference the namespace as a shortcut. Here's an example of using the fully qualified namespace:

using System;

namespace ExampleCode
	class RegExExample
		System.Text.RegularExpressions.Regex myRegEx = new System.Text.RegularExpressions.Regex("what");
		System.Text.RegularExpressions.Match myMatch = myRegEx.Match("whatever");

Open in new window

And an example of the using statement:

using System;
using System.Text.RegularExpressions;

namespace ExampleCode
	class RegExExample
		Regex myRegEx = new Regex("what");
		Match myMatch = myRegEx.Match("whatever");

Open in new window


Author Comment

ID: 36498163
Hi yesthatbob,

Thanks for the reply. Is there a way to reference all the classes in the refrence in one go?

Thanks again,

Expert Comment

ID: 36498252
Well, no. You can reference all of the namespaces with individual using statements, but this is generally bad form - you should only add a using for the namespace you will actually be using. As for classes, you only refer to a class when you need it in code, so there's no need to reference "all of the classes" before hand.

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction Hi all and welcome to my first article on Experts Exchange. A while ago, someone asked me if i could do some tutorials on object oriented programming. I decided to do them on C#. Now you may ask me, why's that? Well, one of the re…
The article shows the basic steps of integrating an HTML theme template into an ASP.NET MVC project
In this video we outline the Physical Segments view of NetCrunch network monitor. By following this brief how-to video, you will be able to learn how NetCrunch visualizes your network, how granular is the information collected, as well as where to f…
Michael from AdRem Software explains how to view the most utilized and worst performing nodes in your network, by accessing the Top Charts view in NetCrunch network monitor ( Top Charts is a view in which you can set seve…

623 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question