我想问一下如何制作加载屏幕（只是一个图片或东西）正在加载的程序而出现，并消失在程序加载完毕。
在发烧友的版本，我已经看到了显示进度条（％）。 你怎么能有一个，你怎么计算％上显示呢？
我知道有一个的Form_Load（）事件，但我没有看到一个Form_Loaded（）事件，或％的作为一种属性/属性的任何地方。
Answer 1:
所有你需要创建一个形式，启动画面在你面前表现出来的主要开始显示着陆页，一旦着陆页加载关闭此飞溅。
using System.Threading;
using System.Windows.Forms;
namespace MyTools
{
public class SplashForm : Form
{
//Delegate for cross thread call to close
private delegate void CloseDelegate();
//The type of form to be displayed as the splash screen.
private static SplashForm splashForm;
static public void ShowSplashScreen()
{
// Make sure it is only launched once.
if (splashForm != null)
return;
Thread thread = new Thread(new ThreadStart(SplashForm.ShowForm));
thread.IsBackground = true;
thread.SetApartmentState(ApartmentState.STA);
thread.Start();
}
static private void ShowForm()
{
splashForm = new SplashForm();
Application.Run(splashForm);
}
static public void CloseForm()
{
splashForm.Invoke(new CloseDelegate(SplashForm.CloseFormInternal));
}
static private void CloseFormInternal()
{
splashForm.Close();
splashForm = null;
}
}
}
和主程序功能如下：
[STAThread]
static void Main(string[] args)
{
SplashForm.ShowSplashScreen();
MainForm mainForm = new MainForm(); //this takes ages
SplashForm.CloseForm();
Application.Run(mainForm);
}
Answer 2:
如果你要显示SplashForm超过你的应用程序一次，一定要设置splashForm变量设置为null，否则你会得到一个错误。
static private void CloseFormInternal()
{
splashForm.Close();
splashForm = null;
}
Answer 3:
我有问题，与所有其他解决方案，我发现，特别是那些显示Splash在其他线程不是GUI线程，并专门在Citrix。
例：
- 飞溅永远不会关闭
- 开机显示错误的监视器上
- 飞溅节目确定，但MainForm的是显示所有其他窗口的后面
我结束了这一点，它似乎运作良好。
飞溅的形式：
public partial class Splash : Form
{
public Splash()
{
InitializeComponent();
}
private void pictureBox1_Click(object sender, EventArgs e)
{
}
}
飞溅的形式续：
partial class Splash
{
private System.ComponentModel.IContainer components = null;
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
private void InitializeComponent()
{
System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Splash));
this.pictureBox1 = new System.Windows.Forms.PictureBox();
((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).BeginInit();
this.SuspendLayout();
//
// pictureBox1
//
this.pictureBox1.Dock = System.Windows.Forms.DockStyle.Fill;
this.pictureBox1.Image = ((System.Drawing.Image)(resources.GetObject("pictureBox1.Image")));
this.pictureBox1.Location = new System.Drawing.Point(0, 0);
this.pictureBox1.Name = "pictureBox1";
this.pictureBox1.Size = new System.Drawing.Size(512, 224);
this.pictureBox1.TabIndex = 0;
this.pictureBox1.TabStop = false;
this.pictureBox1.Click += new System.EventHandler(this.pictureBox1_Click);
//
// Splash
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(512, 224);
this.ControlBox = false;
this.Controls.Add(this.pictureBox1);
this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
this.Name = "Splash";
this.ShowIcon = false;
this.ShowInTaskbar = false;
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "Splash";
((System.ComponentModel.ISupportInitialize)(this.pictureBox1)).EndInit();
this.ResumeLayout(false);
}
#endregion
private System.Windows.Forms.PictureBox pictureBox1;
}
主要：
[STAThread]
static void Main(string[] _args)
{
ShowSplash();
MainForm mainForm = new MainForm();
Application.Run(mainForm);
}
private static void ShowSplash()
{
Splash sp = new Splash();
sp.Show();
Application.DoEvents();
System.Windows.Forms.Timer t = new System.Windows.Forms.Timer();
t.Interval = 1000;
t.Tick += new EventHandler((sender, ea) =>
{
sp.BeginInvoke(new Action(() =>
{
if (sp != null && Application.OpenForms.Count > 1)
{
sp.Close();
sp.Dispose();
sp = null;
t.Stop();
t.Dispose();
t = null;
}
}));
});
t.Start();
}
文章来源: C# WinForm - loading screen
