您好我有一个使用Windows Forms的旧C＃应用程序写得很差。我最近不得不在应用程序中做了一些大的改动，现在我面临着非常奇怪的问题。
该应用程序首先被设计为在主窗口OnLoad方法中加载数据（糟糕的是，我知道），然后重构，以便在另一个线程中不显眼地加载数据。该应用程序使用BindingListView（http://blw.sourceforge.net/），这是IBindingListView接口的非常简单的实现。
在我对应用程序所做的更改之前，一切正常。应用程序在加载所有数据时启动，并且没有任何问题（在等待应用程序加载数据时忽略了糟糕的用户体验）。
但是当我将应用程序更改为在另一个线程中动态加载数据时（网格首先显示为空，后来数据被加载到它），开始弹出一些空行，这些行不在ObservableCollection中绑定到网格。
我设法跟踪这个调用堆栈的新添加行：
Equin.ApplicationFramework.BindingListView.dll!Equin.ApplicationFramework.AggregateBindingListView<BusinessLogic.DataEntries.TrackEntry>.AddNew() Line 295 C#
Equin.ApplicationFramework.BindingListView.dll!Equin.ApplicationFramework.AggregateBindingListView<BusinessLogic.DataEntries.TrackEntry>.System.ComponentModel.IBindingList.AddNew() Line 1617 + 0x8 bytes C#
System.Windows.Forms.dll!System.Windows.Forms.BindingSource.AddNew() + 0xbd bytes
System.Windows.Forms.dll!System.Windows.Forms.CurrencyManager.AddNew() + 0x26 bytes
System.Windows.Forms.dll!System.Windows.Forms.DataGridView.DataGridViewDataConnection.AddNew() + 0x86 bytes
System.Windows.Forms.dll!System.Windows.Forms.DataGridView.DataGridViewDataConnection.OnNewRowNeeded() + 0x24 bytes
System.Windows.Forms.dll!System.Windows.Forms.DataGridView.OnRowEnter(ref System.Windows.Forms.DataGridViewCell dataGridViewCell = null, int columnIndex = 0, int rowIndex = 0, bool canCreateNewRow, bool validationFailureOccurred) + 0x10a bytes
System.Windows.Forms.dll!System.Windows.Forms.DataGridView.SetCurrentCellAddressCore(int columnIndex = 0, int rowIndex = 0, bool setAnchorCellAddress, bool validateCurrentCell, bool throughMouseClick = false) + 0x59f bytes
System.Windows.Forms.dll!System.Windows.Forms.DataGridView.SetAndSelectCurrentCellAddress(int columnIndex = 0, int rowIndex = 0, bool setAnchorCellAddress, bool validateCurrentCell, bool throughMouseClick, bool clearSelection = true, bool forceCurrentCellSelection = false) + 0x2a bytes
System.Windows.Forms.dll!System.Windows.Forms.DataGridView.MakeFirstDisplayedCellCurrentCell(bool includeNewRow) + 0x66 bytes
System.Windows.Forms.dll!System.Windows.Forms.DataGridView.OnEnter(System.EventArgs e) + 0xe0 bytes
System.Windows.Forms.dll!System.Windows.Forms.Control.NotifyEnter() + 0x20 bytes
System.Windows.Forms.dll!System.Windows.Forms.ContainerControl.UpdateFocusedControl() + 0xc6 bytes
System.Windows.Forms.dll!System.Windows.Forms.ContainerControl.AssignActiveControlInternal(System.Windows.Forms.Control value = {System.Windows.Forms.DataGridView}) + 0x54 bytes
System.Windows.Forms.dll!System.Windows.Forms.ContainerControl.ActivateControlInternal(System.Windows.Forms.Control control, bool originator = false) + 0x76 bytes
System.Windows.Forms.dll!System.Windows.Forms.ContainerControl.SetActiveControlInternal(System.Windows.Forms.Control value = {System.Windows.Forms.DataGridView}) + 0x73 bytes
System.Windows.Forms.dll!System.Windows.Forms.ContainerControl.SetActiveControl(System.Windows.Forms.Control ctl) + 0x33 bytes
System.Windows.Forms.dll!System.Windows.Forms.ContainerControl.ActiveControl.set(System.Windows.Forms.Control value) + 0x5 bytes
System.Windows.Forms.dll!System.Windows.Forms.Control.Select(bool directed, bool forward) + 0x1b bytes
System.Windows.Forms.dll!System.Windows.Forms.Control.Select() + 0xf bytes
System.Windows.Forms.dll!System.Windows.Forms.SplitContainer.SelectNextActiveControl(System.Windows.Forms.Control ctl, bool forward, bool tabStopOnly, bool nested, bool wrap) + 0x2c bytes
System.Windows.Forms.dll!System.Windows.Forms.SplitContainer.SelectNextControlInContainer(System.Windows.Forms.Control ctl, bool forward, bool tabStopOnly, bool nested, bool wrap) + 0xdc bytes
System.Windows.Forms.dll!System.Windows.Forms.SplitContainer.Select(bool directed, bool forward) + 0x65 bytes
System.Windows.Forms.dll!System.Windows.Forms.Control.SelectNextControl(System.Windows.Forms.Control ctl, bool forward, bool tabStopOnly, bool nested, bool wrap) + 0x7b bytes
System.Windows.Forms.dll!System.Windows.Forms.Control.SelectNextControlInternal(System.Windows.Forms.Control ctl, bool forward, bool tabStopOnly, bool nested, bool wrap) + 0x4a bytes
System.Windows.Forms.dll!System.Windows.Forms.Form.Active.set(bool value) + 0x11d bytes
System.Windows.Forms.dll!System.Windows.Forms.Form.WmActivate(ref System.Windows.Forms.Message m) + 0x42 bytes
System.Windows.Forms.dll!System.Windows.Forms.Form.WndProc(ref System.Windows.Forms.Message m) + 0x146 bytes
System.Windows.Forms.dll!System.Windows.Forms.Control.ControlNativeWindow.OnMessage(ref System.Windows.Forms.Message m) + 0x10 bytes
System.Windows.Forms.dll!System.Windows.Forms.Control.ControlNativeWindow.WndProc(ref System.Windows.Forms.Message m) + 0x31 bytes
System.Windows.Forms.dll!System.Windows.Forms.NativeWindow.Callback(System.IntPtr hWnd, int msg = 6, System.IntPtr wparam, System.IntPtr lparam) + 0x5a bytes
[Native to Managed Transition]
[Managed to Native Transition]
System.Windows.Forms.dll!System.Windows.Forms.Control.SetVisibleCore(bool value = true) + 0x333 bytes
System.Windows.Forms.dll!System.Windows.Forms.Form.SetVisibleCore(bool value = true) + 0x87 bytes
System.Windows.Forms.dll!System.Windows.Forms.Control.Visible.set(bool value) + 0x11 bytes
System.Windows.Forms.dll!System.Windows.Forms.Application.ThreadContext.RunMessageLoopInner(int reason = -1, System.Windows.Forms.ApplicationContext context = {System.Windows.Forms.ApplicationContext}) + 0xe8 bytes
System.Windows.Forms.dll!System.Windows.Forms.Application.ThreadContext.RunMessageLoop(int reason, System.Windows.Forms.ApplicationContext context) + 0x61 bytes
System.Windows.Forms.dll!System.Windows.Forms.Application.Run(System.Windows.Forms.Form mainForm) + 0x31 bytes
Registr optické komunikace.exe!GUI.Program.Main() Line 29 + 0x1d bytes C#
[Native to Managed Transition]
[Managed to Native Transition]
mscorlib.dll!System.AppDomain.nExecuteAssembly(System.Reflection.Assembly assembly, string[] args) + 0x19 bytes
mscorlib.dll!System.Runtime.Hosting.ManifestRunner.Run(bool checkAptModel) + 0x6e bytes
mscorlib.dll!System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly() + 0x84 bytes
mscorlib.dll!System.Runtime.Hosting.ApplicationActivator.CreateInstance(System.ActivationContext activationContext, string[] activationCustomData) + 0x65 bytes
mscorlib.dll!System.Runtime.Hosting.ApplicationActivator.CreateInstance(System.ActivationContext activationContext) + 0xa bytes
mscorlib.dll!System.Activator.CreateInstance(System.ActivationContext activationContext) + 0x3e bytes
Microsoft.VisualStudio.HostingProcess.Utilities.dll!Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone() + 0x23 bytes
mscorlib.dll!System.Threading.ThreadHelper.ThreadStart_Context(object state) + 0x66 bytes
mscorlib.dll!System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, object state) + 0x6f bytes
mscorlib.dll!System.Threading.ThreadHelper.ThreadStart() + 0x44 bytes
这让我怀疑，新的不需要的行的添加是以某种方式在DataGridView中单独启动的，没有明确编写的代码来执行它。
所以我的问题是 - DataGridView可以这样做吗？它怎么可以关闭？我的下一个问题是，如果DataGridView只处理之前发给它的一些命令，我如何跟踪触发BindingListView的AddNew方法的内容？
答案 0 :(得分：3)
设置属性AllowUserTAddRows=false;或代码
myDataGridView.AllowUserToAddRows = false;