upgrade issue-GGC new row behavior changes

[Administrator]

Hi,
Upgrade our product application from V3.3.0.0 to V4.4.0.51 in VS2003. GroupingGridControl's new row display behavior has been changed.

In V3.3.0.0 the new GGC row is empty for all columns, but in V4.4.0.51, it looks like that it assigned '' for string-type-field's null value, 0 for numeric-type-field's null value. So the new row is not empty for those column with combobox pickup list. Please see my attached screen short-cut.

How can I make the new row totally emptry like in V3.3.0.0 before?

Thanks,


Lan

Here is my code for setup ComboBox pickup column:

dvLookUp=dtLookUp.DefaultView;
dvLookUp.Sort=sExpFlds;
this.gdBase.TableDescriptor.Columns[ColumnName].Appearance.AnyRecordFieldCell.CellType ="ComboBox";
this.gdBase.TableDescriptor.Columns[ColumnName].Appearance.AnyRecordFieldCell.DataSource=dvLookUp;//tbLookup;
this.gdBase.TableDescriptor.Columns[ColumnName].Appearance.AnyRecordFieldCell.DisplayMember=lookup_desc;
this.gdBase.TableDescriptor.Columns[ColumnName].Appearance.AnyRecordFieldCell.ValueMember=lookup_field;
this.gdBase.TableDescriptor.Columns[ColumnName].Appearance.AnyRecordFieldCell.ShowButtons=GridShowButtons.ShowCurrentCell;
this.gdBase.TableDescriptor.Columns[ColumnName].Appearance.AnyRecordFieldCell.HorizontalAlignment=GridHorizontalAlignment.Left;
this.gdBase.TableDescriptor.Columns[ColumnName].Appearance.AnyRecordFieldCell.DropDownStyle=GridDropDownStyle.Exclusive;


combobox_default.zip

[Administrator]

Hi Lan,

You can handle the TableControlPrepareViewStyleInfo event and set the e.Inner.Style.CellValue to System.DBNull for AddNewRowRecord. Here is a code snippet

private void gridGroupingControl1_TableControlPrepareViewStyleInfo(object sender, GridTableControlPrepareViewStyleInfoEventArgs e)
{
GridTableCellStyleInfo style = e.Inner.Style as GridTableCellStyleInfo;
if(style.TableCellIdentity.TableCellType == GridTableCellType.AddNewRecordFieldCell
&& e.Inner.RowIndex != e.TableControl.CurrentCell.RowIndex )
{
e.Inner.Style.CellValue = System.DBNull;
}
}

Best Regards,
Haneef

[Administrator]

I am sorry. Your code doesn't work. The new row is still not empty.

[Administrator]

Hi Lan,

Please try the attached sample and let me know if you are looking something different.
GGC_Sample.zip

Best Regards,
Haneef