C＃控制台应用程序将无法运行

Question

Im trying to change my application to a console application. I want it to work so that if one parameter is passed method 1 is executed and if no parameter is passed method 2 is executed.

From the code I have, when I try run it nothing happens.

Here is my main code:

[STAThread]
    static void Main(string[] args)
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        Application.Run();

        RunTestCases runTestCases = new RunTestCases();
        DataIntegration dataIntegration = new DataIntegration();



        if (args != null)
        {           
            runTestCases.RunTestCaseForSelectedField(args);
        }
        else
        {
            runTestCases.RunTestCaseForAllFields();
        }

    }

Any ideas?

Thanks

Answer 1

Application.Run starts a message loop, which remains until your app is closed (receives quit message). Hence nothing after Application.Run() is executed until that quit message.

The question is if you really need those lines referring to Application. If you don't have a Window, chances are, a message loop is superfluous. The message loop could be necessary if you want to act on windows messages. However, then you would run this loop in a seperate thread.

Answer 2

You would find out the real problem if you debug it, as in put a breakpoint in the args != null line and see exactly what's inside args .

However, it's probably because args is never null, so make it:

if (args.Any())

(Edit: JeffRSon also caught another thing wrong with your code, so his answer is right too, however, you'll hit the args problem I describe once you fix it the original problem. So I'll keep my answer here too.

When launching a console app with no parameters, the args will be an empty array, not a null value)

Answer 3

Remove first three lines in main method. Check in project properties if the Output type is Console Application Set entry point to your method

Answer 4

I don't have the rep to comment but one problem I see is that your first condition will always be true because args with no command line input is a zero length string array rather than a null value. You want to check to see what is in args rather than assume it is null.

Answer 5

在控制台应用程序中不需要与应用程序相关的代码，它仅在Windows applicattion（wpf）中使用，其他人对“ args”的解释也有效。

Answer 6

if (args.Length > 0)
        {
            runTestCases.RunTestCaseForSelectedField(args[0]);
        }
        else
        {
            //runTestCases.RunTestCaseForAllFields();
            Console.WriteLine("No Parameter");
        }

This is what I have now , whenever I run it, it runs the else statement. Why arent my parameters being picked up?