将值添加到特定的 DataTable 单元格 [英] Adding values to specific DataTable cells

问题描述

我想知道是否可以向特定的 DataTable 单元格添加值?

假设我有一个现有的 dataTable 并且我添加了一个新列，我将如何在不覆盖现有列的行的情况下添加到新列的行?

据我所知，没有添加到特定单元格的方法(除非我错了).

 dt.Rows.Add(a, b, c, d)

其中 a、b、c 和 d 是字符串值.那么如果我只想添加到 d 列呢?

任何帮助将不胜感激.

解决方案

如果是一个全新的行，您只想设置一个值，则需要添加整行，然后设置单个值:

>

DataRow dr = dt.NewRow();dr[3].Value = "一些价值";dt.Rows.Add(dr);

否则，您可以找到现有行并设置单元格值

DataRow dr = dt.Rows[theRowNumber];dr[3] = "新值";

I'm wondering if it's possible to add values to specific DataTable cells?

Suppose I have an existing dataTable and I add a new column, how would I go about adding to the new column's rows without overwriting the existing columns' rows?

As far as I'm aware, there isn't a method for adding to specific cells (unless I'm wrong).

  dt.Rows.Add(a, b, c, d)

where a, b, c and d are string values. So what if I just want to add to the d column?

Any help would be appreciated.

解决方案

If it were a completely new row that you wanted to only set one value, you would need to add the whole row and then set the individual value:

DataRow dr = dt.NewRow();
dr[3].Value = "Some Value";
dt.Rows.Add(dr);

Otherwise, you can find the existing row and set the cell value

DataRow dr = dt.Rows[theRowNumber];
dr[3] = "New Value";

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