Handwritten code note (1) -- write a drag button

Today, I started to play with the handwritten form code. I also want to train the learning code ......

Windows formsapplication automatically creates some files when it is created. The next creation of WinFormStudy is used as an example. Let's take a look at the code in each file:

1. Program. cs

1 UsingSystem;
2  UsingSystem. Collections. Generic;
3  UsingSystem. Linq;
4  UsingSystem. Windows. Forms;
5 
6  NamespaceWinFormStudy
7 {
8     Static ClassProgram
9 {
10         /// <Summary>
11         ///The main entry point of the application.
12         /// </Summary>
13  [STAThread]
14         Static VoidMain ()
15 {
16             ///Application can output 45 entries
17  Application. EnableVisualStyles ();
18 Application. SetCompatibleTextRenderingDefault (False);
19 Application. Run (NewForm1 ());
20 }
21 }
22 }

2. Form1.Designer. cs

1 NamespaceWinFormStudy
2 {
3     Partial ClassForm1
4 {
5         /// <Summary>
6         ///Required designer variables.
7       /// </Summary>
8          PrivateSystem. ComponentModel. IContainer components= Null;
9         /// <Summary>
10         ///Clear all resources in use.
11       /// </Summary>
12  /// <Param name = "disposing">If the managed resources should be released, the value is true; otherwise, the value is false.</Param>
13          Protected Override VoidDispose (BoolDisposing)
14 {
15             If(Disposing&&(Components! = Null))
16 {
17 Components. Dispose ();
18 }
19             <