Vb.Net Dataset table = New DataTable [英] Vb.Net Dataset table = New DataTable

问题描述

我遇到一个编程问题，我试图解决如下：

I came across one programming issue that I have tried to solve it as follows:

dsDataSet.Tables("promotion") = New DataTable.

但不幸的是，这不起作用，因为错误：属性'Item'是只读

But Unfortunately this does not work because error: property 'Item' is read only

有没有完成这个？

推荐答案

DataSet的Tables集合可以是使用添加，删除方法修改

The Tables collection of a DataSet could be modified using the Add, Remove methods

dsDataSet.Tables.Add(new DataTable("promotion"))

当然，上面的一行要求该集合不包含名为promotion的表。如果您的数据集中已经有一个名为promotion的表，那么您需要在添加新的表之前删除它。

of course, the line above requires that the collection doesnt already contain a table named "promotion". If you have already a table named "promotion" in your dataset then you need to remove it before adding the new one

dsDataSet.Tables.Remove("promotion")
dsDataSet.Tables.Add(new DataTable("promotion"))

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