如何在winforms的datagridview中将字符串排序为数字 [英] how to sort string as number in datagridview in winforms

问题描述

我在 datagridview 中有带有数字的字符串列.它没有绑定，我想按照我使用的数字对它进行排序

I have string column with numbers in a datagridview.It is not bound, I would like to sort it number wise I used

colid.ValueType = typeof(int);
grid.Sort(colid, ListSortDirection.Descending);

但是类似于字符串，例如:

but is sorts like string eg:

11
12
23
7
80
81

而预期是

7
11
12
23
80
81

推荐答案

您可以在 SortCompare 事件上注册，例如:

You can register on the SortCompare event, for example:

private void customSortCompare(object sender, DataGridViewSortCompareEventArgs e)
{
    int a = int.Parse(e.CellValue1.ToString()), b = int.Parse(e.CellValue2.ToString());

    // If the cell value is already an integer, just cast it instead of parsing

    e.SortResult = a.CompareTo(b);

    e.Handled = true;
}

...
yourGridview.SortCompare += customSortCompare;
...

我没有检查它是否有效，但你明白了......;)

I didn't check if that works, but you get the idea... ;)

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