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Solution The GridData's sortbycolumn method accepts an IComparer object. You can pass your custom IComparer to this method. The following code example sorts the 4th column by string length. C# this.gridControl1.Data.SortByColumn(col,(ListSortDirection)this.gridControl1[0, col].Tag, new StrLenComparer());
VB Me.gridControl1.Data.SortByColumn(col,CType(Me.gridControl1(0, col).Tag, ListSortDirection), New StrLenComparer())
Refer to the following code example for custom IComparer method.
C# public class StrLenComparer : IComparer
{
// Implementation of 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;
else
{
if(x.ToString().Length > y.ToString().Length)
return -1;
if(x.ToString().Length < y.ToString().Length)
return 1;
else
return 0;
}
}
}
VB Public Function Compare(ByVal x As Object, ByVal y As Object) As Integer Implements IComparer.Compare 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 Else If x.ToString().Length > y.ToString().Length Then Return -1 End If If x.ToString().Length < y.ToString().Length Then Return 1 Else Return 0 End If End If End Function The following screenshot illustrates the CustomSort IComparer applied to the Text column.
Sample Link: C#: Sorting CS VB: Sorting VB
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