（七十三）c#Winform自定义控件-资源加载窗体

官网

http://www.hzhcontrols.com

前提

入行已经7,8年了，一直想做一套漂亮点的自定义控件，于是就有了本系列文章。

GitHub：https://github.com/kwwwvagaa/NetWinformControl

码云：https://gitee.com/kwwwvagaa/net_winform_custom_control.git

如果觉得写的还行，请点个 star 支持一下吧

欢迎前来交流探讨： 企鹅群568015492 

麻烦博客下方点个【推荐】，谢谢

NuGet

Install-Package HZH_Controls

目录

https://www.cnblogs.com/bfyx/p/11364884.html

用处及效果

准备工作

这个用到了基类窗体  （十七）c#Winform自定义控件-基类窗体 ，如果不了解可以先移步看一下

开始

添加一个窗体FrmLoading 继承 FrmBase

东西不多，看全部代码

 // ***********************************************************************
 // Assembly         : HZH_Controls
 // Created          : 2019-09-26
 //
 // ***********************************************************************
 // <copyright file="FrmLoading.cs">
 //     Copyright by Huang Zhenghui(黄正辉) All, QQ group:568015492 QQ:623128629 Email:623128629@qq.com
 // </copyright>
 //
 // Blog: https://www.cnblogs.com/bfyx
 // GitHub：https://github.com/kwwwvagaa/NetWinformControl
 // gitee：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
 //
 // If you use this code, please keep this note.
 // ***********************************************************************
 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.Windows.Forms;

 namespace HZH_Controls.Forms
 {
     /// <summary>
     /// Class FrmLoading.
     /// Implements the <see cref="HZH_Controls.Forms.FrmBase" />
     /// </summary>
     /// <seealso cref="HZH_Controls.Forms.FrmBase" />
     public partial class FrmLoading : FrmBase
     {
         /// <summary>
         /// The update database worker
         /// </summary>
         BackgroundWorker updateDBWorker = new BackgroundWorker();
         /// <summary>
         /// 获取或设置加载任务
         /// </summary>
         /// <value>The background work action.</value>
         public Action BackgroundWorkAction
         {
             get;
             set;
         }
         /// <summary>
         /// 设置当前执行进度及任务名称，key:任务进度，取值0-100  value：当前任务名称
         /// </summary>
         /// <value>The current MSG.</value>
         public KeyValuePair<int, string> CurrentMsg
         {
             set
             {
                 this.updateDBWorker.ReportProgress(value.Key, value.Value);
             }
         }
         /// <summary>
         /// Initializes a new instance of the <see cref="FrmLoading"/> class.
         /// </summary>
         public FrmLoading()
         {
             InitializeComponent();
             this.updateDBWorker.WorkerReportsProgress = true;
             this.updateDBWorker.WorkerSupportsCancellation = true;
             this.updateDBWorker.DoWork += new DoWorkEventHandler(this.backgroundWorker1_DoWork);
             this.updateDBWorker.ProgressChanged += new ProgressChangedEventHandler(this.backgroundWorker1_ProgressChanged);
         }
         /// <summary>
         /// 设置进度信息，重写此函数可以处理界面信息绑定
         /// </summary>
         /// <param name="strText">进度任务名称</param>
         /// <param name="intValue">进度值</param>
         protected virtual void BindingProcessMsg(string strText, int intValue)
         {

         }

         /// <summary>
         /// Sets the message.
         /// </summary>
         /// <param name="strText">The string text.</param>
         /// <param name="intValue">The int value.</param>
         private void SetMessage(string strText, int intValue)
         {
             if (this.InvokeRequired)
             {
                 this.BeginInvoke(new MethodInvoker(delegate() { SetMessage(strText, intValue); }));
             }
             else
             {
                 BindingProcessMsg(strText, intValue);
             }
         }

         /// <summary>
         /// Handles the Load event of the FrmLoading control.
         /// </summary>
         /// <param name="sender">The source of the event.</param>
         /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param>
         private void FrmLoading_Load(object sender, EventArgs e)
         {
             if (ControlHelper.IsDesignMode())
                 return;
             this.updateDBWorker.RunWorkerAsync();
         }

         /// <summary>
         /// Handles the DoWork event of the backgroundWorker1 control.
         /// </summary>
         /// <param name="sender">The source of the event.</param>
         /// <param name="e">The <see cref="DoWorkEventArgs"/> instance containing the event data.</param>
         private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
         {
             if (this.BackgroundWorkAction != null)
             {
                 this.BackgroundWorkAction();
             }
             Thread.Sleep();
             if (base.InvokeRequired)
             {
                 base.BeginInvoke(new MethodInvoker(delegate
                 {
                     base.Close();
                 }));
             }
             else
             {
                 base.Close();
             }
         }

         /// <summary>
         /// Handles the ProgressChanged event of the backgroundWorker1 control.
         /// </summary>
         /// <param name="sender">The source of the event.</param>
         /// <param name="e">The <see cref="ProgressChangedEventArgs"/> instance containing the event data.</param>
         private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
         {
             SetMessage((e.UserState == null) ? "" : e.UserState.ToString(), e.ProgressPercentage);
         }
     }
 }

说明：

BackgroundWorkAction：加载资源任务函数

CurrentMsg：当前需要显示的进度信息，key:任务进度，取值0-100  value：当前任务名称

BindingProcessMsg：向界面绑定数据，子类需要重写此函数来实现向界面绑定显示数据

示例：

添加一个窗体FrmTestLoading 继承FrmLoading

添加一个文本label1显示进度信息文字

添加一个进度条ucProcessLineExt1显示进度值

重新BindingProcessMsg绑定信息

 protected override void BindingProcessMsg(string strText, int intValue)
         {
             label1.Text = strText;
             this.ucProcessLineExt1.Value = intValue;
         }

调用

  FrmTestLoading frmLoading = new FrmTestLoading();
                     frmLoading.BackgroundWorkAction = delegate()
                     {
                         try
                         {
                             frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "正在初始化配置...");
                             Thread.Sleep();
                             frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "正在加载第一个资源...");
                             Thread.Sleep();
                             frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "正在加载第二个资源...");
                             Thread.Sleep();
                             frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "正在加载第三个资源...");
                             Thread.Sleep();
                             frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "正在加载第四个资源...");
                             Thread.Sleep();
                             frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "正在加载第五个资源...");
                             Thread.Sleep();
                             frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "正在加载第六个资源...");
                             Thread.Sleep();
                             frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "正在加载第七个资源...");
                             Thread.Sleep();
                             frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "正在加载第八个资源...");
                             Thread.Sleep();
                             frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "正在加载第九个资源...");
                             Thread.Sleep();
                             frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "数据加载完成...");
                             Thread.Sleep();
                         }
                         catch (Exception ex)
                         {
                             MessageBox.Show("加载资源时出现错误");
                         }
                     };
                     frmLoading.ShowDialog();

最后的话

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