Unbound column in GGC

[David Cui]

in GridControl we have 4 basic queryCellInfo and saveCellInfo ...

can i do partial virtual mode in GGC ? in another word, make several unbound column (i believe it can). what is the best practice ? which event(s) i need to handle ...

any example will be great !
david

[Jisha Joy]

Hi David,

To add a column which is not bound to the datasource, you need to add the column as an unbound column.

To add an unbound column see the following code,

this.gridGroupingControl1.TableDescriptor.UnboundFields.Add("print");

Then to provide values to the bounded column by handling the QueryValue event. Please see the code:


this.gridGroupingControl1.TableDescriptor.QueryValue += new FieldValueEventHandler

(unboundField_QueryValue);

private void unboundField_QueryValue(object sender, FieldValueEventArgs e)
{
int RecordIndex

=this.gridGroupingControl1.Table.PrimaryKeySortedRecords.IndexOf(e.Record);
if (e.Field.Name == "print" && RecordIndex>=0)
{

e.Value= "value";
}
}

Please let me know if this helps.

Regards,
Jisha