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  • c# Winform 加载窗体

    先来一个加载窗体代码

     1  public partial class FrmLoading : Form
     2     {
     3         public BackgroundWorker updateDBWorker=new BackgroundWorker();
     4 
     5         public Action BackgroundWorkAction
     6         {
     7             get;
     8             set;
     9         }
    10 
    11         public KeyValuePair<int, string> CurrentMsg
    12         {
    13             set
    14             {
    15                 this.updateDBWorker.ReportProgress(value.Key, value.Value);
    16             }
    17         }
    18 
    19         public FrmLoading()
    20         {
    21             InitializeComponent();
    22             this.updateDBWorker.WorkerReportsProgress = true;
    23             this.updateDBWorker.WorkerSupportsCancellation = true;
    24             this.updateDBWorker.DoWork += new DoWorkEventHandler(this.backgroundWorker1_DoWork);
    25             this.updateDBWorker.ProgressChanged += new ProgressChangedEventHandler(this.backgroundWorker1_ProgressChanged);
    26             this.updateDBWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(this.backgroundWorker1_RunWorkerCompleted);
    27             lblVer.Text = Properties.Resources.SystemVer;
    28         }
    29 
    30 
    31         public void ShowLog(string strLog, int intValue)
    32         {
    33             if (this.lblLog.InvokeRequired)
    34             {
    35                 this.lblLog.BeginInvoke(new MethodInvoker(delegate() { ShowLog(strLog, intValue); }));
    36             }
    37             else
    38             {
    39                 lblLog.Text = strLog;
    40                 this.progressBar1.Value = intValue;
    41             }
    42         }
    43 
    44         private void FrmLoading_Load(object sender, EventArgs e)
    45         {
    46             this.updateDBWorker.RunWorkerAsync();
    47         }
    48 
    49         private void backgroundWorker1_DoWork(object sender, DoWorkEventArgs e)
    50         {
    51             if (this.BackgroundWorkAction != null)
    52             {
    53                 this.BackgroundWorkAction();
    54             }
    55             Thread.Sleep(100);
    56             if (base.InvokeRequired)
    57             {
    58                 base.BeginInvoke(new MethodInvoker(delegate
    59                 {
    60                     base.Close();
    61                 }));
    62             }
    63             else
    64             {
    65                 base.Close();
    66             }
    67         }
    68 
    69         private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
    70         {
    71             ShowLog((e.UserState == null) ? "" : e.UserState.ToString(), e.ProgressPercentage);
    72         }
    73 
    74         private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
    75         {
    76         }
    77     }
    View Code

    界面就一个进度条,一个label,没其他东西

    看调用的地方,Program文件里面

     1 FrmLoading frmLoading = new FrmLoading();
     2                         frmLoading.BackgroundWorkAction = delegate
     3                         {
     4                             try
     5                             {
     6                                 //设置连接字符串                               
     7                                 frmLoading.CurrentMsg = new KeyValuePair<int, string>(1, "正在初始化数据配置...");
     8 
     9                                 frmLoading.CurrentMsg = new KeyValuePair<int, string>(5, "正在初始化日志配置...");
    10                                 System.Threading.Thread.Sleep(200);
    11                                 
    12                                 frmLoading.CurrentMsg = new KeyValuePair<int, string>(10, "正在升级本地数据...");
    13                               
    14                                 frmLoading.CurrentMsg = new KeyValuePair<int, string>(50, "正在初始化本地参数...");
    15                                
    16                                 frmLoading.CurrentMsg = new KeyValuePair<int, string>(85, "正在初始化热键信息...");
    17                                
    18                                 frmLoading.CurrentMsg = new KeyValuePair<int, string>(90, "正在初始化硬件设备...");
    19                               
    20                                 frmLoading.CurrentMsg = new KeyValuePair<int, string>(100, "初始化完成...");
    21                                 
    22                             }
    23                             catch (Exception ex)
    24                             {                              
    25                                 Application.Exit();
    26                                 Process.GetCurrentProcess().Kill();
    27                             }
    28                         };
    29                         frmLoading.ShowDialog();
    30                       
    31                         Application.Run(new form1());
    View Code

    好了 就这样了,没什么技术含量,就不贴图了,拿去用吧

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  • 原文地址:https://www.cnblogs.com/bfyx/p/11316760.html
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