c# - My app is not going into static void processFile and its going into catch and closing why is that?

Question

Closed. This question needs details or clarity. It is not currently accepting answers. question from:https://stackoverflow.com/questions/65849014/my-app-is-not-going-into-static-void-processfile-and-its-going-into-catch-and-cl

Answer 1

using StreamWriter sw = new StreamWriter(stream);
// Your other code here

Is the offending line. On earlier versions of C# this must be

using (StreamWriter sw = new StreamWriter(stream))
{
    // Your other code here
}

Using declarations (the first version) were introduced to avoid the constant ramping to the right that happens with using statements/blocks (the second version). They are functionally identical (as long as the using block goes to the end of the containing scope), although a trivia difference is that using declarations must declare a local variable (the other form is not required to introduce a local).

If you have an up-to-date compiler it may also just be that your project file or target platform is forcing an earlier C# version. You can explicitly target higher C# versions by editing the csproj.