来自DatagridView数据源的临时DataTable(Temporary DataTable from DatagridView datasource)

 我有一个数据表，它是从datagridview数据源创建的，并希望对该数据表进行修改，如： 
 
DataTable dt = (DataTable)dataGridView1.DataSource;
dt.Remove("xyz");
 
 这会从dt中删除xyz列，但是也会从datagridview的原始数据源中删除它。 但我想将此dt仅用于临时目的，并且不希望将列从原始列中删除。 
 
 为什么它们的行为类似于绑定变量，我该如何处理？ 

I have a datatable which created from a datagridview datasource and want to make modifications on that datatable like:
 
DataTable dt = (DataTable)dataGridView1.DataSource;
dt.Remove("xyz");
 
This removes the xyz column from dt, well, but removes it from the datagridview's original datasource too. But i want to use this dt for only temporary purposes and not want the column to be removed from original.
 
Why do they behave like binded variables and how can I handle this?

原文：https://stackoverflow.com/questions/37616853