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How to sort a column with numeric data in GridDataBoundGrid?

Platform: WinForms |
Control: GridDataBoundGrid(Classic)
Tags: sorting, custom

To sort the column with numeric data, it can be handled by customizing the sorting with IComparer. In this sample, sorting comparison can be done by IntComparer which is derived from IComparer.

Sorting behavior might be single click, double click or none can be handled by SortBehaviour. Here, a helper class `CustomSortHelper` is used set the custom comparer for the columns.

this.gridDataBoundGrid1.SortBehavior = GridSortBehavior.SingleClick;
CustomSortHelper sortHelper = new Customsorthelper(this.gridDataBoundGrid1);
sortHelper.SetUnboundColumn("Col3", values, new IntComparer());


Me.gridDataBoundGrid1.SortBehavior = GridSortBehavior.SingleClick
Dim sortHelper As New Customsorthelper(Me.gridDataBoundGrid1)
sortHelper.SetUnboundColumn("Col3", values, New IntComparer())


`IntComparer` derived from the IComparer which can be used for compare the x and y indices.

public class IntComparer : IComparer
public int Compare(object x, object y)
if (x == null && y == null)
return 0;
else if (x == null)
return -1;
else if (y == null)
return 1;
return int.Parse(x.ToString()) - int.Parse(y.ToString());


Public Class IntComparer
 Implements IComparer
Public Function Compare(ByVal x As Object, ByVal y As Object) As Integer
If x Is Nothing AndAlso y Is Nothing Then
Return 0
ElseIf x Is Nothing Then
Return -1
ElseIf y Is Nothing Then
Return 1
Return Integer.Parse(x.ToString()) - Integer.Parse(y.ToString())
End If
End Function
End Class


Numeric data


C#: Sort a column

VB: Sort a column

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