.Net Gridview Alpha排序，需要进行数字排序

Question

This is my first real question of need for any of those Gridview experts out there in the .NET world.

I an creating a Gridview from codebehind and I am holding a bunch of numerical data in the columns. Although, I do add the comma in the number fields from codebehind. When I load it to the Gridview, I have the sorting ability turned on, BUT the gridview chooses to ALPHA sort rather than sorting numerically because I add in those commas.

So I need help. Anyone willing to give this one a shot? I need to change some of my columns in the gridview to numerical sort rather than the alpha sort it is using.

Answer 1

If you do end up implementing your own comparer and sorting them as strings, the algorithm for treating numbers 'properly' is called Natural Sorting. Jeff wrote a pretty good entry on it here:
Sorting for Humans : Natural Sort Order

You can find a pretty good implementation in C# here:
http://www.codeproject.com/KB/string/NaturalSortComparer.aspx

Answer 2

Instead, I just resorted to the JQUERY Table Sorter.

can be found here: tablesorter

Answer 3

根据确切的排序方式，您可以使用上述方法之一，或者如果列实际上是数字类型，则可以返回到DB并在那里完成排序，然后再添加修饰。

Answer 4

I realize this is really old, but you're mixing data with presentation; that's what's screwing up the sort. Get the number out of SQL without adding commas, then add them in the presentation layer.

Answer 5

P-Invoke is your friend.

[DllImport("Shlwapi.dll", CharSet = CharSet.Unicode)]
private static extern int StrCmpLogicalW(string psz1, string psz2);

Then you could use it as your own comparer.

For example (in VS2005),

Array.Sort(tringArray, delegate(string left, string right)
{
    return StrCmpLogicalW(left, right);
});