帮助“”集合已修改;枚举操作可能不执行“。 [英] Help with "Collection was modified; enumeration operation might not execute."

问题描述

当我使用下面的代码，我得到一个集合被修改;枚举操作可能不执行错误。如果我理解这正确，我认为这意味着我不能枚举这个数据表，并从中删除行同时。我的问题是，我还能做些什么来实现从我的数据表删除某些行的结果？
这是我的代码：

When I use the following code, I'm getting a "Collection was modified; enumeration operation might not execute" error. If I understand this correctly, I think it means that I can't enumerate over this datatable and delete rows from it at the same time. My question is, what else can I do to achieve the result of deleting certain rows from my datatable? Here's my code:

        // Now let's loop through the datatable and find any account with no
        // LYSMKWh value and less than 4000 KWh current usage.  We'll remove those
        // from the datatable.
        currentRow = 0;
        foreach (DataRow row in resultsDT.Rows)
        {
            if ((string)resultsDT.Rows[currentRow]["LYSMKWh"] == "0")
            {
                int intKWh = Convert.ToInt32(resultsDT.Rows[currentRow]["KWH"]);
                if (intKWh < 5000)
                {
                    resultsDT.Rows[currentRow].Delete();                        
                }
            }
            resultsDT.AcceptChanges();
            currentRow++;
        }

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