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copied!<p>Since it seems you have access to the source, the easiest approach to expose that variable is to add a public getter to the class in which it resides. An instance of that class will have access to the internal variable.</p> <p><strong>EDIT</strong>: (Added code examples)</p> <p>It is all about where the code accessing the internal value exists. Hopefully the example below will illustrate this for you. Assume that you have a solution with two projects, one called ExternalAssembly, the other MyApplication. MyApplication has a reference to ExternalAssembly to access its classes.</p> <p>Project: ExternalAssembly</p> <pre><code>namespace ExternalAssembly { public class MyClass { internal string hiddenString; public MyClass() { this.hiddenString = "This is my value."; } public string Exposed { get { return this.hiddenString; } } } public class MyClass2 { private MyClass classInstance; public MyClass2() { this.classInstance = new MyClass(); } public string Exposed2 { get { return this.classInstance.hiddenString; } } } } </code></pre> <p>Project: MyApplication</p> <pre><code>namespace MyApplication { using ExternalAssembly; public class CallInternalTest() { MyClass classInstance = new MyClass(); MyClass2 class2Instance = new MyClass2(); // this will fail since hiddenString is an internal variable Console.WriteLine(classInstance.hiddenString); // this will succeed since Exposed is a public member Console.WriteLine(classInstance.Exposed); // this will also succeed since Exposed2 is a public member Console.WriteLine(class2Instance.Exposed2); } } </code></pre>

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