添加列并在Asp.net C#中更新数据集的该列 [英] Add Column and Update that column of DataSet in Asp.net C#

问题描述

我已经创建了数据集并可以正常工作.
现在我想添加一列并对其进行更新.
帮帮我.

I had created dataset and its properly working.
Now i want to add a column and update it.
Help me.

推荐答案

添加如下所示的列.

Add the column like below.

dataset.Tables[0].Columns.Add(new DataColumn ("columnname"));

更新列值，如下所示.

Update the columns values like below.

for (int i = 0; i <= ds.Tables[0].Rows.Count - 1; i++)
{
  dataset.Tables[0].Rows[i]["columnname"] = "new value here";
}

步骤类似于:
-创建一个新的 DataColumn [列 [ ^ ]集合
-创建 DataRow [NewRow [项目 [行 [接受更改 [

The steps would be something like:
- create a new DataColumn[^]
- add it to the data table''s Columns[^] collection
- Create a DataRow [^] for example using NewRow[^]
- Modify the values of the row as per needed using Item[^] indexer
- add the row to Rows[^] collection
- after succesful modifications AcceptChanges[^]

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