C#winform实现模态加载进度条

做项目时常常会遇到延时加载数据的情况，出现常常所说的假死状态。客户体验度非常的低。网上也有很多解决方法，基本都是使用多线程异步，委托，还有一个backgroudworker控件都可以处理这种情况，我比较喜欢这种可以弹窗显示进度条的方式，就找到了这个方案，感觉用着很好，就分享给同学们参考。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace ProgressBar
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
       
        private void button1_Click(object sender, EventArgs e)
        {
            Application.EnableVisualStyles();
            Form2 frm = new Form2();
            frm.Progress = new Form2.ProgressCallback(delegate (Form2 fp)
            {
                fp.MaxValue = 100;
                fp.MinValue = 0;
                fp.CurrentValue = 0;

                //停1秒看消息
                Thread.Sleep(100);

                //这里可以放置您的耗时函数

                //每0.1秒进度加1
                for (int i = 0; i < 100; i  )
                {
                    fp.Info = "当前 "   i   "/100";
                    fp.CurrentValue = i;

                    Thread.Sleep(50);
                }
                fp.CurrentValue = 100;
                //停1秒看消息
                Thread.Sleep(1000);
            });

            //判断处理结果
            DialogResult result = frm.ShowDialog();
            switch (result)
            {
                case DialogResult.OK:
                    MessageBox.Show("处理完成");
                    break;
                case DialogResult.Cancel:
                    MessageBox.Show("处理异常，因为:\n\n"   frm.Exception);
                    break;
                case DialogResult.Abort:
                    MessageBox.Show("用户终止");
                    break;
            }
        }

    }
}

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资源文件列表

ProgressBar/.vs/ProgressBar/v14/.suo , 38400
ProgressBar/ProgressBar/App.config , 189
ProgressBar/ProgressBar/bin/Debug/ProgressBar.exe , 13312
ProgressBar/ProgressBar/bin/Debug/ProgressBar.exe.config , 189
ProgressBar/ProgressBar/bin/Debug/ProgressBar.pdb , 36352
ProgressBar/ProgressBar/bin/Debug/ProgressBar.vshost.exe , 22696
ProgressBar/ProgressBar/bin/Debug/ProgressBar.vshost.exe.config , 189
ProgressBar/ProgressBar/bin/Debug/ProgressBar.vshost.exe.manifest , 490
ProgressBar/ProgressBar/Form1.cs , 1871
ProgressBar/ProgressBar/Form1.Designer.cs , 2031
ProgressBar/ProgressBar/Form1.resx , 5817
ProgressBar/ProgressBar/Form2.cs , 4790
ProgressBar/ProgressBar/Form2.Designer.cs , 3742
ProgressBar/ProgressBar/Form2.resx , 5817
ProgressBar/ProgressBar/obj/Debug/DesignTimeResolveAssemblyReferences.cache , 868
ProgressBar/ProgressBar/obj/Debug/DesignTimeResolveAssemblyReferencesInput.cache , 7059
ProgressBar/ProgressBar/obj/Debug/ProgressBar.csproj.FileListAbsolute.txt , 570
ProgressBar/ProgressBar/obj/Debug/ProgressBar.csproj.GenerateResource.Cache , 1034
ProgressBar/ProgressBar/obj/Debug/ProgressBar.exe , 13312
ProgressBar/ProgressBar/obj/Debug/ProgressBar.Form1.resources , 180
ProgressBar/ProgressBar/obj/Debug/ProgressBar.Form2.resources , 180
ProgressBar/ProgressBar/obj/Debug/ProgressBar.pdb , 36352
ProgressBar/ProgressBar/obj/Debug/ProgressBar.Properties.Resources.resources , 180
ProgressBar/ProgressBar/obj/Debug/TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs , 0
ProgressBar/ProgressBar/obj/Debug/TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs , 0
ProgressBar/ProgressBar/obj/Debug/TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs , 0
ProgressBar/ProgressBar/Program.cs , 523
ProgressBar/ProgressBar/ProgressBar.csproj , 4224
ProgressBar/ProgressBar/Properties/AssemblyInfo.cs , 1348
ProgressBar/ProgressBar/Properties/Resources.Designer.cs , 2835
ProgressBar/ProgressBar/Properties/Resources.resx , 5612
ProgressBar/ProgressBar/Properties/Settings.Designer.cs , 1098
ProgressBar/ProgressBar/Properties/Settings.settings , 249
ProgressBar/ProgressBar.sln , 1000