Winforms onPaint着火次数太多

我有一个winforms用户控件，允许用户在面板上编辑工作流。工作流由构建块和连接组成，它们也是我的用户控件

当我将应用程序从winforms.exe迁移到另一个WCF应用程序上的winform控件时，我注意到CPU使用率上升到25%（=我的4核机器单核的100%）

一旦出现以下情况，CPU将在运行时下降到0-1%：

从任何现有控件中清除工作流面板，或

我将屏幕焦点移动到另一个应用程序（并让它在后台运行），甚至是同一应用程序中的不同选项卡

必须指出的是，这种情况不会发生在Windows窗体宿主应用程序中，而只发生在WCF中

我看到了一个地方，他们覆盖了基本工作流块UC的WndProc方法，我也这样做了，但我仍然不明白是什么在多次调用WndProc方法，或者如何停止它

我的堆栈看起来像：

BaseControls.dll！Ast.Admin.Controls.BaseControl.WndProc（ref System.Windows.Forms.Message m={System.Windows.Forms.Message}）第91行C# System.Windows.Forms.dll！System.Windows.Forms.Control.ControlNativeWindow.OnMessage（参考System.Windows.Forms.Message m）+0x1d字节
System.Windows.Forms.dll！System.Windows.Forms.Control.ControlNativeWindow.WndProc（参考System.Windows.Forms.Message m）+0xaa字节
System.Windows.Forms.dll！回调（System.IntPtr hWnd，int msg=129，System.IntPtr wparam，System.IntPtr lparam）+0x6f字节 System.Windows.Forms.dll！System.Windows.Forms.NativeWindow.WindowClass.Callback（System.IntPtr hWnd、int msg、System.IntPtr wparam、System.IntPtr lparam）+0x51字节
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System.Windows.Forms.dll！System.Windows.Forms.UnsafentiveMethods.CreateWindowEx（int-dwExStyle，string-lpszClassName，string-lpszWindowName，int-style，int-x，int-y，int-width，int-height，System.Runtime.InteropServices.HandleRef-hWndParent，System.Runtime.InteropServices.HandleRef-Humenu，System.Runtime.InteropServices.HandleRef-hInst，object-pvParam）+0x3f字节
System.Windows.Forms.dll！System.Windows.Forms.NativeWindow.CreateHandle（System.Windows.Forms.CreateParams cp）+0x22d字节 System.Windows.Forms.dll！System.Windows.Forms.Control.CreateHandle（）+0x12c字节
System.Windows.Forms.dll！System.Windows.Forms.Control.CreateControl（bool-fIgnoreVisible=false）+0x89字节
System.Windows.Forms.dll！System.Windows.Forms.Control.CreateControl（）+0x31字节
System.Windows.Forms.dll！System.Windows.Forms.Control.ControlCollection.Add（System.Windows.Forms.Control值={Ast.Controls.AllianceEnterprise.DataSource}）+0x1dd字节
AdminUC.dll！Ast.Admin.AdminUC.RuleBuilderUC.AddItem（object objData=“C:\Ast Alliance NextUI\Bin\Escalation\Controls\Actions\DataConnector.dll；Ast.Controls.AllianceEnterprise.DataSource”）+0x510字节 AdminUC.dll！Ast.Admin.AdminUC.RuleBuilderUC.drawingPanel_DragDrop（对象发送方={System.Windows.Forms.Panel}，System.Windows.Forms.DragEventArgs e={System.Windows.Forms.DragEventArgs}）+0xa0字节
System.Windows.Forms.dll！System.Windows.Forms.Control.OnDragDrop（System.Windows.Forms.DragEventArgs drgevent）+0x73字节
System.Windows.Forms.dll！System.Windows.Forms.Control.System.Windows.Forms.IDropTarget.OnDragDrop（System.Windows.Forms.DragEventArgs drgEvent）+0x15字节 System.Windows.Forms.dll！System.Windows.Forms.DropTarget.System.Windows.Forms.UnsafentiveMethods.IOleDropTarget.OleDrop（对象pDataObj，int-grfKeyState，long pt，ref-int-pdwefect=1）+0x5d字节 [本机到托管转换]
[管理到本机转换]
System.Windows.Forms.dll！System.Windows.Forms.Control.DoDragDrop（对象数据，System.Windows.Forms.DragDropEffects allowedEffects）+0xed字节 AdminUC.dll！Ast.Admin.AdminUC.RuleBuilderUC.listView_MouseDown（对象发送方={System.Windows.Forms.listView}，System.Windows.Forms.MouseEventArgs e={X=16 Y=6 Button=Left}）+0x285字节 System.Windows.Forms.dll！System.Windows.Forms.Control.OnMouseDown（System.Windows.Forms.MouseEventArgs e）+0x73字节
System.Windows.Forms.dll！System.Windows.Forms.ListView.WmMouseDown（参考System.Windows.Forms.Message m={System.Windows.Forms.Message}，System.Windows.Forms.MouseButtons按钮，整数点击）+0x7a字节
System.Windows.Forms.dll！System.Windows.Forms.ListView.WndProc（ref System.Windows.Forms.Message m）+0xf7字节 System.Windows.Forms.dll！System.Windows.Forms.Control.ControlNativeWindow.OnMessage（参考System.Windows.Forms.Message m）+0x1d字节
System.Windows.Forms.dll！System.Windows.Forms.Control.ControlNativeWindow.WndProc（参考System.Windows.Forms.Message m）+0xaa字节
System.Windows.Forms.dll！回调（System.IntPtr hWnd，int msg=513，System.IntPtr wparam，System.IntPtr lparam）+0x6f字节 [本机到托管转换]
[管理到本机转换]
WindowsBase.dll！System.Windows.Threading.Dispatcher.PushFrameImpl（System.Windows.Threading.DispatcherFrame={System.Windows.Threading.DispatcherFrame}）+0xb5字节 WindowsBase.dll！System.Windows.Threading.Dispatcher.PushFrame（System.Windows.Threading.DispatcherFrame框架）+0x3c字节
PresentationFramework.dll！System.Windows.Application.RunDispatcher（对象忽略）+0x34字节
PresentationFramework.dll！System.Windows.Application.RunInternal（System.Windows.Window窗口）+0x16f字节
PresentationFramework.dll！System.Windows.Application.Run（System.Windows.Window窗口）+0x33字节 PresentationFramework.dll！System.Windows.Application.Run（）+0x69字节 Ast Browser.exe！Ast.NextUI.GUI.Shell.App.StartApplication（）+0x75字节
阿斯特兄弟

[Managed to Native Transition]
 System.Windows.Forms.dll!System.Windows.Forms.UnsafeNativeMethods.CreateWindowEx(int dwExStyle, string lpszClassName, string lpszWindowName, int style, int x, int y, int width, int height, System.Runtime.InteropServices.HandleRef hWndParent, System.Runtime.InteropServices.HandleRef hMenu, System.Runtime.InteropServices.HandleRef hInst, object pvParam) + 0x3f bytes
System.Windows.Forms.dll!System.Windows.Forms.NativeWindow.CreateHandle(System.Windows.Forms.CreateParams cp) + 0x22d bytes 
System.Windows.Forms.dll!System.Windows.Forms.Control.CreateHandle() + 0x12c bytes