如何在DataGridView的WinForms的排序字符串数 [英] how to sort string as number in datagridview in winforms

问题描述

我有一个datagridview.It与数字字符串列未绑定，我想对它进行排序号明智的我用

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

但像各种字符串如：

  11
12
23
7
80
81
 

而预期为

  7
11
12
23
80
81
 

解决方案

您可以在 SortCompare 注册事件，例如：

 私人无效customSortCompare（对象发件人，DataGridViewSortCompareEventArgs E）
{
    int类型的= int.Parse（e.CellValue1.ToString（）），B = int.Parse（e.CellValue2.ToString（））;    //如果单元格的值已经是一个整数，只投它，而不是解析    e.SortResult = a.CompareTo（B）;    e.Handled =真实的;
}...
yourGridview.SortCompare + = customSortCompare;
...
 

我没有检查其是否正常工作，但你的想法...;）

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);

but is sorts like string eg:

11
12
23
7
80
81

while the expected is

7
11
12
23
80
81

解决方案

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;
...

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

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