Re: Implement Icomparable

Tech Tip: Click here to run a free scan for Windows Errors and optimize PC performance

Hi Jim, I guess it's because for some types you have there isn't a
default comparer (like you have, for instance, for most numerical types
and strings ).

What do those columns contain (what's the datatype) ?

-T

Jim ha scritto:

Creating a datagridView with a dataReader. Why do I get this message
when I click on the column header (some, but not all the column
headers) to sort??

sqlDR = sqlCMD.ExecuteReader
Dim intCol As Integer

With sqlDR
If .HasRows Then
DataGridViewProducts.Rows.Clear()
For intCol = 0 To .FieldCount - 1
DataGridViewProducts.Columns.Add(.GetName(intCol),
.GetName(intCol))
Next

DataGridViewProducts.AutoSizeColumnsMode =
DataGridViewAutoSizeColumnsMode.ColumnHeader
While .Read
Dim objCells(intCol) As Object
.GetValues(objCells)
DataGridViewProducts.Rows.Add(objCells)

End While
.Close()
End If
End With

.