Share variables between projects in the same solution [duplicate]

Question

I have a solution and two projects in it. I want to share variables from project1 to project2 and viceversa. How can i do that? Maybe with a static class but I don't know how can handle it.

Answer 1

If you want share constants, you can add a Shared Project and reference the Shared Project into project1 and project2. The code in the Shared Project (a static class with constants members) is linked into other projects :

public static class Constants
{
    const string AppName = "AppName";
    const string AppUrl = "http://localhost:1234/myurl";
    const int SomethingCount = 3;
}

If you want share runtime variables (with dynamic values), you can add a Class Library or a PCL and reference it into project1 and project2. The code in the Class Library will be compiled in a DLL and shared between other projects. You can create a class with static members and share your runtime variables by this way :

public static class RuntimeValues
{
    public static string AppName { get; set; }
    public static string AppUrl { get; set; }
    public static int SomethingCount { get; set; }
}

In your project1 and project2, you can do something like :

var appName = Constants.AppName;

Or :

RuntimeValues.AppName = "AppName";
var appName = RuntimeValues.AppName;