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88 lines
2.3 KiB
C#
88 lines
2.3 KiB
C#
using Mesnac.Action.ChemicalWeighing.FreeDb;
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using System;
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using System.Threading;
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namespace Mesnac.Action.ChemicalWeighing
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{
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public class LoadingHelper
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{
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#region 相关变量定义
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/// <summary>
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/// 定义委托进行窗口关闭
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/// </summary>
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private delegate void CloseDelegate();
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private static Loading loading;
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private static readonly Object syncLock = new Object(); //加锁使用
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#endregion
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//private LoadingHelper()
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//{
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//}
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/// <summary>
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/// 显示loading框
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/// </summary>
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//public static void ShowLoadingScreen()
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//{
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// // Make sure it is only launched once.
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// if (loading != null)
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// return;
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// Thread thread = new Thread(new ThreadStart(LoadingHelper.ShowForm));
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// thread.IsBackground = true;
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// thread.SetApartmentState(ApartmentState.STA);
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// thread.Start();
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//}
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/// <summary>
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/// 显示窗口
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/// </summary>
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private static void ShowForm()
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{
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if (loading != null)
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{
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loading.closeOrder();
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loading = null;
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}
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loading = new Loading();
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loading.TopMost = true;
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loading.ShowDialog();
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}
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/// <summary>
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/// 关闭窗口
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/// </summary>
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//public static void CloseForm()
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//{
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// Thread.Sleep(50); //可能到这里线程还未起来，所以进行延时，可以确保线程起来，彻底关闭窗口
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// if (loading != null)
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// {
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// lock (syncLock)
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// {
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// Thread.Sleep(50);
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// if (loading != null)
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// {
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// Thread.Sleep(50); //通过三次延时，确保可以彻底关闭窗口
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// loading.Invoke(new CloseDelegate(LoadingHelper.CloseFormInternal));
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// }
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// }
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// }
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//}
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/// <summary>
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/// 关闭窗口，委托中使用
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/// </summary>
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private static void CloseFormInternal()
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{
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loading.closeOrder();
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loading = null;
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}
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}
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} |