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(100);
            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>(1, "正在初始化数据配置...");

                                frmLoading.CurrentMsg = new KeyValuePair<int, string>(5, "正在初始化日志配置...");
                                System.Threading.Thread.Sleep(200);
                                
                                frmLoading.CurrentMsg = new KeyValuePair<int, string>(10, "正在升级本地数据...");
                              
                                frmLoading.CurrentMsg = new KeyValuePair<int, string>(50, "正在初始化本地参数...");
                               
                                frmLoading.CurrentMsg = new KeyValuePair<int, string>(85, "正在初始化热键信息...");
                               
                                frmLoading.CurrentMsg = new KeyValuePair<int, string>(90, "正在初始化硬件设备...");
                              
                                frmLoading.CurrentMsg = new KeyValuePair<int, string>(100, "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