286 lines
11 KiB
C#
286 lines
11 KiB
C#
using DevExpress.XtraGrid.Views.Grid;
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using DevExpress.XtraTab;
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using Lskj.Control.ZKFinger;
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using Lskj.Util;
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using System;
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using System.Collections;
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using System.Collections.Generic;
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using System.Data;
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using System.Diagnostics;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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using Lskj.Model;
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using System.Reflection;
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using WinFormsControl = System.Windows.Forms.Control;
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namespace Lskj.Control.Model
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{
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public static class StaticControl
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{
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/// <summary>
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/// Releases static references owned by a closed legacy module. Cleanup is
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/// best-effort so it cannot change the module close result.
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/// </summary>
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public static void ReleaseModuleReferences(WinFormsControl moduleRoot, XtraTabPage modulePage, string moduleCode)
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{
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List<GridView> gridViews = new List<GridView>();
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try
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{
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gridViews = CollectGridViews(moduleRoot);
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}
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catch (Exception exception)
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{
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TraceCleanupFailure("收集表格引用", exception);
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}
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try
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{
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foreach (GridView gridView in gridViews)
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{
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try
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{
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RemoveGridReferences(gridView);
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}
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catch (Exception exception)
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{
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TraceCleanupFailure("释放表格拖拽引用", exception);
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}
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}
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TryCleanup(() => RemoveConditionPanels(moduleCode), "释放条件面板引用");
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TryCleanup(() => RemoveProtectedReferences(moduleRoot, modulePage), "释放权限保护引用");
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TryCleanup(() => ClearRightMenuReferences(moduleRoot, gridViews), "释放右键菜单引用");
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TryCleanup(
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() => StaticBandedControl.ReleaseModuleReferences(moduleRoot, modulePage, moduleCode),
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"释放带状表格引用");
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}
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finally
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{
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// DynamicModel caches retain completed tasks, result tables and
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// their closures. Always release them after other references.
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TryCleanup(() => ClearDataCaches(moduleRoot), "释放动态数据缓存");
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}
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}
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private static void TryCleanup(Action cleanup, string operation)
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{
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try
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{
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cleanup();
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}
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catch (Exception exception)
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{
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TraceCleanupFailure(operation, exception);
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}
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}
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private static void TraceCleanupFailure(string operation, Exception exception)
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{
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Debug.WriteLine("释放旧模块引用失败[" + operation + "]：" + exception);
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}
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private static List<GridView> CollectGridViews(WinFormsControl root)
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{
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List<GridView> result = new List<GridView>();
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if (root == null)
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return result;
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foreach (WinFormsControl control in EnumerateControls(root))
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{
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DevExpress.XtraGrid.GridControl grid = control as DevExpress.XtraGrid.GridControl;
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GridView view = grid == null ? null : grid.MainView as GridView;
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if (view != null && !result.Contains(view))
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result.Add(view);
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}
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return result;
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}
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private static IEnumerable<WinFormsControl> EnumerateControls(WinFormsControl root)
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{
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yield return root;
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foreach (WinFormsControl child in root.Controls)
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foreach (WinFormsControl nested in EnumerateControls(child))
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yield return nested;
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}
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private static void RemoveGridReferences(GridView gridView)
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{
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GridDragGrid.DisposeRegistrations(GridViewDragGridDic, TargetViewDragGridDic, gridView);
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if (ReferenceEquals(SourceDragGridView, gridView) ||
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(SourceDragGridView != null && SourceDragGridView.GridControl != null && SourceDragGridView.GridControl.IsDisposed))
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SourceDragGridView = null;
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}
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private static void RemoveConditionPanels(string moduleCode)
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{
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foreach (string key in ConditionsPanelDic.Keys.ToList())
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{
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ModuleConditionsPanelEx panel;
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if (string.Equals(key, moduleCode, StringComparison.OrdinalIgnoreCase) ||
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!ConditionsPanelDic.TryGetValue(key, out panel) || panel == null || panel.IsDisposed)
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ConditionsPanelDic.Remove(key);
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}
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}
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private static void RemoveProtectedReferences(WinFormsControl root, XtraTabPage page)
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{
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while (page != null && DogVerifyModuleForms.Remove(page))
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{
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}
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foreach (XtraTabPage item in DogVerifyModuleForms.ToList())
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if (item == null || item.IsDisposed || IsContained(root, item))
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DogVerifyModuleForms.Remove(item);
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foreach (IForm item in DogVerifyNoPageForms.ToList())
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if (item == null || item.SubForm == null || item.SubForm.IsDisposed || IsContained(root, item.SubForm))
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DogVerifyNoPageForms.Remove(item);
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}
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private static bool IsContained(WinFormsControl root, WinFormsControl value)
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{
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if (root == null || value == null)
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return false;
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if (ReferenceEquals(root, value))
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return true;
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foreach (WinFormsControl child in root.Controls)
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if (IsContained(child, value))
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return true;
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return false;
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}
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private static void ClearRightMenuReferences(WinFormsControl root, List<GridView> gridViews)
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{
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if (_RightMenuGridView != null && (gridViews.Contains(_RightMenuGridView) ||
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(_RightMenuGridView.GridControl != null && _RightMenuGridView.GridControl.IsDisposed)))
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RightMenuGridView = null;
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if (RightMenuMyControl != null && RightMenuMyControl.MainGridEx != null &&
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(RightMenuMyControl.MainGridEx.IsDisposed || IsContained(root, RightMenuMyControl.MainGridEx)))
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RightMenuMyControl = null;
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if (BomUnionPage != null && (BomUnionPage.IsDisposed || IsContained(root, BomUnionPage)))
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BomUnionPage = null;
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if (AddParentGrid.Value != null && (AddParentGrid.Value.IsDisposed || IsContained(root, AddParentGrid.Value)))
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AddParentGrid = new KeyValuePair<string, GridControlEx>();
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}
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private static void ClearDataCaches(WinFormsControl root)
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{
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if (root == null)
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return;
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// Clear the root first because child enumeration can fail while a
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// DevExpress control is disposing its child collection.
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ClearDynamicModels(root);
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try
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{
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foreach (WinFormsControl control in EnumerateControls(root).Skip(1).ToList())
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ClearDynamicModels(control);
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}
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catch (Exception exception)
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{
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TraceCleanupFailure("遍历动态数据缓存", exception);
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}
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}
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private static void ClearDynamicModels(object instance)
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{
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if (instance == null)
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return;
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BindingFlags flags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic;
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for (Type type = instance.GetType(); type != null; type = type.BaseType)
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foreach (FieldInfo field in type.GetFields(flags | BindingFlags.DeclaredOnly))
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try
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{
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ClearDynamicModel(field.GetValue(instance));
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}
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catch (Exception exception)
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{
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Debug.WriteLine("清理动态缓存字段失败：" + exception);
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}
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}
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private static void ClearDynamicModel(object value)
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{
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DynamicModel model = value as DynamicModel;
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if (model == null || model.DataCaches == null)
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return;
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Dictionary<object, Hashtable> caches = model.DataCaches;
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foreach (Hashtable cache in caches.Values.OfType<Hashtable>().ToList())
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{
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foreach (IDisposable item in cache.Values.OfType<IDisposable>().ToList())
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try { item.Dispose(); } catch { }
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cache.Clear();
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}
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caches.Clear();
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model.DataCaches = null;
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}
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/// <summary>
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/// 记录当前U盾权限窗口
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/// </summary>
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public static List<XtraTabPage> DogVerifyModuleForms = new List<XtraTabPage>();
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public static List<IForm> DogVerifyNoPageForms = new List<IForm>();
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/// <summary>
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///模块打开时的条件界面
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/// </summary>
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public static Dictionary<string, ModuleConditionsPanelEx> ConditionsPanelDic = new Dictionary<string, ModuleConditionsPanelEx>();
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/// <summary>
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/// 表格拖拽类，key值为源表
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/// </summary>
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public static Dictionary<GridView, List<GridDragGrid>> GridViewDragGridDic = new Dictionary<GridView, List<GridDragGrid>>();
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/// <summary>
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/// 表格拖拽类，key值为目标表
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/// </summary>
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public static Dictionary<GridView, List<GridDragGrid>> TargetViewDragGridDic = new Dictionary<GridView, List<GridDragGrid>>();
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/// <summary>
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/// 当前拖拽源表格
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/// </summary>
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public static GridView SourceDragGridView;
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/// <summary>
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/// 指纹识别模块
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/// </summary>
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public static FingerHelper fingerHelper;
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///// <summary>
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///// 外部exe进程
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///// </summary>
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//public static Dictionary<ExeType, Process> loadExeProcess = new Dictionary<ExeType, Process>();
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/// <summary>
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/// 打开的Add模块对应的父表格控件(模块编号,GridControlEx)
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/// </summary>
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public static KeyValuePair<string, GridControlEx> AddParentGrid = new KeyValuePair<string, GridControlEx>();
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/// <summary>
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/// 当前右键点击时的表格
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/// </summary>
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public static GridView _RightMenuGridView;
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public static GridView RightMenuGridView
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{
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get
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{
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return StaticControl._RightMenuGridView;
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}
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set
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{
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StaticControl._RightMenuGridView = value;
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StaticControl.Comprefix = "";
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StaticControl.ReturnRowLisy.Clear();
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}
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}
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/// <summary>
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/// bom附件修改时的关联页签
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/// </summary>
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public static XtraTabPage BomUnionPage;
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/// <summary>
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/// 当前右键点击时的控件对象
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/// </summary>
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public static MyControl RightMenuMyControl;
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/// <summary>
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/// 当前右键点击时的表格的列前缀
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/// </summary>
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public static string Comprefix;
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/// <summary>
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/// 浏览器返回数据
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/// </summary>
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public static List<DataRow> ReturnRowLisy = new List<DataRow>();
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}
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}
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