DataGridView绑定DataTable出现大红叉

听说：因为主线程创建的控件，在子线程中访问就会出现如下问题；

听说：解决方案可以如下几种：

1.在处理操作DataTable的时候，需要将DataTable锁定；

2.使用 delegate 或者 beginIvoke 的方式來解決；

3.调用自带的Invalidate()；

4.加上DataError事件并在其中中加上 try catch；

网上查找的解决方案大致就是酱紫；

因为这情况长时间、偶尔会出现，这在测试中。。。。

异常文本：

************** 异常文本 **************

System.NullReferenceException: 未将对象引用设置到对象的实例。

在 System.Windows.Forms.DataGridViewTextBoxCell.PaintPrivate(Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, Int32 rowIndex, DataGridViewElementStates cellState, Object formattedValue, String errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts, Boolean computeContentBounds, Boolean computeErrorIconBounds, Boolean paint)

在 System.Windows.Forms.DataGridViewTextBoxCell.Paint(Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, Int32 rowIndex, DataGridViewElementStates cellState, Object value, Object formattedValue, String errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts)

在 System.Windows.Forms.DataGridViewCell.PaintWork(Graphics graphics, Rectangle clipBounds, Rectangle cellBounds, Int32 rowIndex, DataGridViewElementStates cellState, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts)

在 System.Windows.Forms.DataGridViewRow.PaintCells(Graphics graphics, Rectangle clipBounds, Rectangle rowBounds, Int32 rowIndex, DataGridViewElementStates rowState, Boolean isFirstDisplayedRow, Boolean isLastVisibleRow, DataGridViewPaintParts paintParts)

在 System.Windows.Forms.DataGridViewRow.Paint(Graphics graphics, Rectangle clipBounds, Rectangle rowBounds, Int32 rowIndex, DataGridViewElementStates rowState, Boolean isFirstDisplayedRow, Boolean isLastVisibleRow)

在 System.Windows.Forms.DataGridView.PaintRows(Graphics g, Rectangle boundingRect, Rectangle clipRect, Boolean singleHorizontalBorderAdded)

在 System.Windows.Forms.DataGridView.PaintGrid(Graphics g, Rectangle gridBounds, Rectangle clipRect, Boolean singleVerticalBorderAdded, Boolean singleHorizontalBorderAdded)

在 System.Windows.Forms.DataGridView.OnPaint(PaintEventArgs e)

在 System.Windows.Forms.Control.PaintWithErrorHandling(PaintEventArgs e, Int16 layer)

在 System.Windows.Forms.Control.WmPaint(Message& m)

在 System.Windows.Forms.Control.WndProc(Message& m)

在 System.Windows.Forms.DataGridView.WndProc(Message& m)

在 System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)

在 System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)

在 System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

************** 已加载的程序集 **************

mscorlib

程序集版本: 4.0.0.0

Win32 版本: 4.0.30319.1 (RTMRel.030319-0100)

基本代码: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll

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WCS

程序集版本: 2.0.4575.17354

Win32 版本: 2.0.2.2

基本代码: file:///D:/WCS/WCS.exe

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System.Windows.Forms

程序集版本: 4.0.0.0

Win32 版本: 4.0.30319.1 built by: RTMRel

基本代码: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/System.Windows.Forms.dll

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