Note that a new row is not actually added to the underlying xref:System.Data.DataTable until the xref:System.Data.DataRowView.EndEdit%2A method of the DataRowView is called. If the ...

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I managed to find all the butt welds in the drawing, they are kept inside the Autodesk.ProcessPower.PnP3dObjects.Connector class. But I can’t find the “Status” property in these objects. How can I ...

So the speed becomes slow. I want to group these operations and just update the model once. With COM, you can use state.BeginEdit, do all the calls, and then call state.EndEdit. Calling ...

可以使用一行代码获取与列表框中选项关联的数据行： DataRowView类是数据行的包装，它被多个Windows窗体控件使用。它使得显示与控件中的数据行相关的数据更加容易。当列表框被数据绑定到数据表时（假定列表框中的有些行当前被选定了），列表框的SelectedItem ...

根据 DataGrid 绑定到的对象的类型，DataItem 属性会指向不同的行对象。如果网格绑定到 DataView，会获取 DataRowView 对象；如果该源用 DataTable 对象来表示，会获取 DataRow 对象。在该示例应用程序中，我使用 DataView 对象填充了网格。后来，单行的数据对象成为 ...

我在Gridview中使用RowDataBound事件。然后我将每一行的数据放到DataRowView中。当我从DataRowView中提取但个数据时出现错误：System.NullReferenceException: Object reference not set to an instance of an object.错误出现在：string bID = ...