C# Winform The process still on Windows Task list manager after close programme

Question

why The process still on Windows Task list manager after close programme ?

i use login Form.cs

 [STAThread]
        static void Main()
        {
             


        

Answer 1

this.Hide()

doesn`t kill the window.

So it remains hidden and process remains in memory. this.Close() closes the window and removes its object from memory.

It is better to do something like this:

[STAThread]
static void Main()
{
    Application.EnableVisualStyles();
    Application.SetCompatibleTextRenderingDefault(false);
    var l = new Login();
    l.ShowDialog();
    if(l.Passed)
       Application.Run(new Login());
}

And implement Passed property inside login window.

By the way, do you have any multithreading inside? It is another source of errors of this type.