Windows.Form不会显示

Question

All I want to do is display a blank windows form. I am using Visual Studio and was following this tutorial https://msdn.microsoft.com/en-us/library/windows/desktop/bb153258(v=vs.85).aspx However, when I ran it, nothing happened. A blank window did not open. I simplified the code to see what the problem was, so here is my code:

public partial class CreateDevice : Form
{
    static void Main()
    {
        CreateDevice frm = new CreateDevice();
        frm.Show();
    }
    public CreateDevice()
    {
        this.ClientSize = new System.Drawing.Size(400, 300);
        this.Text = "D3D Tutorial 01: CreateDevice";
    }
}

Except when run, nothing happens. I appreciate any advice.

Answer 1

Edited There were actually several things wrong with your code. First, you need a Program class with a static Main method--this is where the computer enters your program and starts running things, without it the computer won't do a thing. You need a partial class--not merely a method--inheriting from Form . And finally, inside the Program.Main method you need Application.Run which runs an application context (if you give it a Form type argument it creates the context automatically). You need to call Application.Run instead of show :

static class Program
{

    static void Main()
    {
        CreateDevice frm = new CreateDevice();
        Application.Run(frm);
    }

}
public partial class CreateDevice : Form
{
    public CreateDevice()
    {
        this.ClientSize = new System.Drawing.Size(400, 300);
        this.Text = "D3D Tutorial 01: CreateDevice";
    }
}