c# Winform 加载窗体

先来一个加载窗体代码

  public partial class FrmLoading : Form
     {
         public BackgroundWorker updateDBWorker=new BackgroundWorker();

         public Action BackgroundWorkAction
         {
             get;
             set;
         }

         public KeyValuePair<int, string> CurrentMsg
         {
             set
             {
                 this.updateDBWorker.ReportProgress(value.Key, value.Value);
             }
         }

         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);
             this.updateDBWorker.RunWorkerCompleted += new RunWorkerCompletedEventHandler(this.backgroundWorker1_RunWorkerCompleted);
             lblVer.Text = Properties.Resources.SystemVer;
         }

         public void ShowLog(string strLog, int intValue)
         {
             if (this.lblLog.InvokeRequired)
             {
                 this.lblLog.BeginInvoke(new MethodInvoker(delegate() { ShowLog(strLog, intValue); }));
             }
             else
             {
                 lblLog.Text = strLog;
                 this.progressBar1.Value = intValue;
             }
         }

         private void FrmLoading_Load(object sender, EventArgs e)
         {
             this.updateDBWorker.RunWorkerAsync();
         }

         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();
             }
         }

         private void backgroundWorker1_ProgressChanged(object sender, ProgressChangedEventArgs e)
         {
             ShowLog((e.UserState == null) ? "" : e.UserState.ToString(), e.ProgressPercentage);
         }

         private void backgroundWorker1_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
         {
         }
     }

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

 FrmLoading frmLoading = new FrmLoading();
                         frmLoading.BackgroundWorkAction = delegate
                         {
                             try
                             {
                                 //设置连接字符串
                                 frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "正在初始化数据配置...");

                                 frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "正在初始化日志配置...");
                                 System.Threading.Thread.Sleep();

                                 frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "正在升级本地数据...");

                                 frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "正在初始化本地参数...");

                                 frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "正在初始化热键信息...");

                                 frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "正在初始化硬件设备...");

                                 frmLoading.CurrentMsg = new KeyValuePair<int, string>(, "初始化完成...");

                             }
                             catch (Exception ex)
                             {
                                 Application.Exit();
                                 Process.GetCurrentProcess().Kill();
                             }
                         };
                         frmLoading.ShowDialog();

                         Application.Run(new form1());

好了 就这样了，没什么技术含量，就不贴图了，拿去用吧