（七十三）c#Winform自定義控制元件-資源載入窗體
阿新 • • 發佈：2019-09-26
前提
入行已經7,8年了，一直想做一套漂亮點的自定義控制元件，於是就有了本系列文章。
GitHub：https://github.com/kwwwvagaa/NetWinformControl
碼雲：https://gitee.com/kwwwvagaa/net_winform_custom_control.git
如果覺得寫的還行，請點個 star 支援一下吧
歡迎前來交流探討： 企鵝群568015492
麻煩部落格下方點個【推薦】，謝謝
NuGet
Install-Package HZH_Controls
目錄
https://www.cnblogs.com/bfyx/p/11364884.html
用處及效果
準備工作
這個用到了基類窗體 （十七）c#Winform自定義控制元件-基類窗體 ，如果不瞭解可以先移步看一下
開始
新增一個窗體FrmLoading 繼承 FrmBase
東西不多，看全部程式碼
1 // *********************************************************************** 2 // Assembly : HZH_Controls 3 // Created : 2019-09-26 4 // 5 // *********************************************************************** 6 // <copyright file="FrmLoading.cs"> 7 // Copyright by Huang Zhenghui(黃正輝) All, QQ group:568015492 QQ:623128629 Email:[email protected] 8 // </copyright> 9 // 10 // Blog: https://www.cnblogs.com/bfyx 11 // GitHub：https://github.com/kwwwvagaa/NetWinformControl 12 // gitee：https://gitee.com/kwwwvagaa/net_winform_custom_control.git 13 // 14 // If you use this code, please keep this note. 15 // *********************************************************************** 16 using System; 17 using System.Collections.Generic; 18 using System.ComponentModel; 19 using System.Data; 20 using System.Drawing; 21 using System.Linq; 22 using System.Text; 23 using System.Threading; 24 using System.Windows.Forms; 25 26 namespace HZH_Controls.Forms 27 { 28 /// <summary> 29 /// Class FrmLoading. 30 /// Implements the <see cref="HZH_Controls.Forms.FrmBase" /> 31 /// </summary> 32 /// <seealso cref="HZH_Controls.Forms.FrmBase" /> 33 public partial class FrmLoading : FrmBase 34 { 35 /// <summary> 36 /// The update database worker 37 /// </summary> 38 BackgroundWorker updateDBWorker = new BackgroundWorker(); 39 /// <summary> 40 /// 獲取或設定載入任務 41 /// </summary> 42 /// <value>The background work action.</value> 43 public Action BackgroundWorkAction 44 { 45 get; 46 set; 47 } 48 /// <summary> 49 /// 設定當前執行進度及任務名稱，key:任務進度，取值0-100 value：當前任務名稱 50 /// </summary> 51 /// <value>The current MSG.</value> 52 public KeyValuePair<int, string> CurrentMsg 53 { 54 set 55 { 56 this.updateDBWorker.ReportProgress(value.Key, value.Value); 57 } 58 } 59 /// <summary> 60 /// Initializes a new instance of the <see cref="FrmLoading"/> class. 61 /// </summary> 62 public FrmLoading() 63 { 64 InitializeComponent(); 65 this.updateDBWorker.WorkerReportsProgress = true; 66 this.updateDBWorker.WorkerSupportsCancellation = true; 67 this.updateDBWorker.DoWork += new DoWorkEventHandler(this.backgroundWorker1_DoWork); 68 this.updateDBWorker.ProgressChanged += new ProgressChangedEventHandler(this.backgroundWorker1_ProgressChanged); 69 } 70 /// <summary> 71 /// 設定進度資訊，重寫此函式可以處理介面資訊繫結 72 /// </summary> 73 /// <param name="strText">進度任務名稱</param> 74 /// <param name="intValue">進度值</param> 75 protected virtual void BindingProcessMsg(string strText, int intValue) 76 { 77 78 } 79 80 /// <summary> 81 /// Sets the message. 82 /// </summary> 83 /// <param name="strText">The string text.</param> 84 /// <param name="intValue">The int value.</param> 85 private void SetMessage(string strText, int intValue) 86 { 87 if (this.InvokeRequired) 88 { 89 this.BeginInvoke(new MethodInvoker(delegate() { SetMessage(strText, intValue); })); 90 } 91 else 92 { 93 BindingProcessMsg(strText, intValue); 94 } 95 } 96 97 /// <summary> 98 /// Handles the Load event of the FrmLoading control. 99 /// </summary> 100 /// <param name="sender">The source of the event.</param> 101 /// <param name="e">The <see cref="EventArgs"/> instance containing the event data.</param> 102 private void FrmLoading_Load(object sender, EventArgs e) 103 { 104 if (ControlHelper.IsDesignMode()) 105 return; 106 this.updateDBWorker.RunWorkerAsync(); 107 } 108 109 /// <summary> 110 /// Handles the DoWork event of the backgroundWorker1 control. 111 /// </summary> 112 /// <param name="sender">The source of the event.</param> 113 /// <param name="e">The <see cref="DoWorkEventArgs"/> instance containing the event data.</param> 114 private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e) 115 { 116 if (this.BackgroundWorkAction != null) 117 { 118 this.BackgroundWorkAction(); 119 } 120 Thread.Sleep(100); 121 if (base.InvokeRequired) 122 { 123 base.BeginInvoke(new MethodInvoker(delegate 124 { 125 base.Close(); 126 })); 127 } 128 else 129 { 130 base.Close(); 131 } 132 } 133 134 /// <summary> 135 /// Handles the ProgressChanged event of the backgroundWorker1 control. 136 /// </summary> 137 /// <param name="sender">The source of the event.</param> 138 /// <param name="e">The <see cref="ProgressChangedEventArgs"/> instance containing the event data.</param> 139 private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e) 140 { 141 SetMessage((e.UserState == null) ? "" : e.UserState.ToString(), e.ProgressPercentage); 142 } 143 } 144 }
說明：
BackgroundWorkAction：載入資源任務函式
CurrentMsg：當前需要顯示的進度資訊，key:任務進度，取值0-100 value：當前任務名稱
BindingProcessMsg：向介面繫結資料，子類需要重寫此函式來實現向介面繫結顯示資料
示例：
新增一個窗體FrmTestLoading 繼承FrmLoading
新增一個文字label1顯示進度資訊文字
新增一個進度條ucProcessLineExt1顯示進度值
重新BindingProcessMsg繫結資訊
1 protected override void BindingProcessMsg(string strText, int intValue)
2 {
3 label1.Text = strText;
4 this.ucProcessLineExt1.Value = intValue;
5 }最後的話
如果你喜歡的話，請到 https://gitee.com/kwwwvagaa/net_winform_custom_control 點個星