SplashForm实现

1.Splasher.cs

using System;

using System.Windows.Forms;

using System.Threading;

using System.Reflection;



namespace SplashScreen

{

    public class Splasher

    {

        private static Form m_SplashForm = null;

        private static ISplashForm m_SplashInterface = null;

        private static Thread m_SplashThread = null;

        private static string m_TempStatus = string.Empty;



        /// <summary>

        /// Show the SplashForm

        /// </summary>

        public static void Show(Type splashFormType)

        {

            if (m_SplashThread != null)

                return;

            if (splashFormType == null)

            {

                throw (new Exception("splashFormType is null"));

            }



            m_SplashThread = new Thread(new ThreadStart(delegate()

            {

                CreateInstance(splashFormType);

                Application.Run(m_SplashForm);

            }));



            m_SplashThread.IsBackground = true;

            m_SplashThread.SetApartmentState(ApartmentState.STA);

            m_SplashThread.Start();

        }







        /// <summary>

        /// set the loading Status

        /// </summary>

        public static string Status

        {

            set

            {

                if (m_SplashInterface == null || m_SplashForm == null)

                {

                    m_TempStatus = value;

                    return;

                }

                m_SplashForm.Invoke(

                        new SplashStatusChangedHandle(delegate(string str) { m_SplashInterface.SetStatusInfo(str); }),

                        new object[] { value }

                    );

            }



        }



        /// <summary>

        /// Colse the SplashForm

        /// </summary>

        public static void Close()

        {

            if (m_SplashThread == null || m_SplashForm == null) return;



            try

            {

                m_SplashForm.Invoke(new MethodInvoker(m_SplashForm.Close));

            }

            catch (Exception)

            {

            }

            m_SplashThread = null;

            m_SplashForm = null;

        }



        private static void CreateInstance(Type FormType)

        {



            object obj = FormType.InvokeMember(null,

                                BindingFlags.DeclaredOnly |

                                BindingFlags.Public | BindingFlags.NonPublic |

                                BindingFlags.Instance | BindingFlags.CreateInstance, null, null, null);

            m_SplashForm = obj as Form;

            m_SplashInterface = obj as ISplashForm;

            if (m_SplashForm == null)

            {

                throw (new Exception("Splash Screen must inherit from System.Windows.Forms.Form"));

            }

            if (m_SplashInterface == null)

            {

                throw (new Exception("must implement interface ISplashForm"));

            }



            if (!string.IsNullOrEmpty(m_TempStatus))

                m_SplashInterface.SetStatusInfo(m_TempStatus);

        }





        private delegate void SplashStatusChangedHandle(string NewStatusInfo);



    }

}

 2.ISplashForm.cs

using System;

using System.Collections.Generic;

using System.Text;



namespace SplashScreen

{

    /// <summary>

    /// interface for Splash Screen

    /// </summary>

    public interface ISplashForm

    {

        void SetStatusInfo(string NewStatusInfo);

    }

}

 3.SplashForm(自己创建)

该Form必须继承ISplashForm接口，并且实现其方法：

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using SplashScreen;



namespace TemplateGenerate

{

    public partial class SplashForm : Form,ISplashForm

    {

        public SplashForm()

        {

            InitializeComponent();

        }

        #region ISplashForm



        void ISplashForm.SetStatusInfo(string NewStatusInfo)

        {

            lbStatusInfo.Text = NewStatusInfo;//lbStatusInfo为窗体上用来显示信息的Label控件

        }



        #endregion

    }

}

 现在只要在程序中需要SplashForm的地方写上：

//显示Splash

Splasher.Show(typeof(SplashForm));

 //设置状态：

Splasher.Status = "Status Info... ";

 在需要关闭SplashForm的地方写上：

Splasher.Close();

 即可。如果想让SplashForm弹出后，父窗口隐藏，可以在Splasher.Show()之前Hide()窗体，然后在Splasher.Close()后Show()窗体，然后在Activate()窗体即可。