如何做到以下情形： 我有一些数据表，其中包含例如一些行：

How to do following scenario: I have some DataTable which contains for example some rows:

1.rowa   2.rowab   3.row   4.rowaba   ...   ñ。 rowabba

1.rowa 2.rowab 3.row 4.rowaba ... n. rowabba

如何通过lenght排序行，叫不上名字。我婉通过字段长度排序表。

How to sort rows by lenght, not by name. I wan to to sort Table by length of fields.

推荐答案

您可以添加一个额外的列到你的数据表，提供包含通话的前pression到 len个（）的功能，从而导致该列的值进行自动计算：

You could add an extra column to your DataTable, supplying an expression containing a call to the len() function, causing the column's values to be automatically computed:

table.Columns.Add("LengthOfName", typeof(int), "len(Name)");

那么你可以简单排序在你之前，结合新列的数据表来您打算使用任何类型的UI控件的网格：

Then you can simply sort on your new column before binding the DataTable to a grid to whatever kind of UI control you plan to use:

table.DefaultView.Sort = "LengthOfName";