This article mainly introduces the common methods of loading interface in C#, involving the operation of forms, which is of great practical value. Friends in need can refer to it
The example of this article describes the loading interface in C# common methods. Share it with everyone for your reference. The specific method analysis is as follows:
Method 1. Using event delegation method
Object: Main form: FrmMain Loading form: FrmLoading
Idea:
Display the window before the main form is loaded Body FrmLoading, when the main form is loaded (when it is displayed for the first time), close FrmLoading
The C# code is as follows:
The code is as follows:
using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using System.Threading; namespace CDemoTest{ public partial class FrmMain : Form { private FrmLoading loadForm; public FrmMain() { //创建加载窗体 loadForm = new FrmLoading(); //指定窗体加载完毕时的事件 this.Shown += FrmLoading_Close; loadForm.Show(); //主窗体初始化方法 InitializeComponent(); } //声明关闭加载窗体方法 private void FrmLoading_Close(object sender, EventArgs e) { loadForm.Close(); } private void FrmMain_Load(object sender, EventArgs e) { Thread.Sleep(3000); } } }
Method 2 .
① In the Main method, display the startup screen first, and be careful to use Show instead of ShowDialog.
② Then follow the normal way, Application.Run(mainForm);
③ In the constructor of mainForm, start the loading thread.
④ Set a flag in mainForm. If the loading is completed, the flag is set to a certain value.
⑤ For the form used as the startup screen, pay attention to detecting the flag in mainForm. If the main form is loaded, it will close itself.
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