GCC: how to hide header of empty child table

[Cuong Luc]

Hi,

I have a nested table using GCC. If a child table has data, it display well. However if child table does not have any data row, it shows the header only, and this make user a bit confusing (like in the attached image).

Is there a way to hide header of empty child table? If there is, please tell me ^_^.

Thanks and regards,

Cuong Luc.

sample89.zip

[Administrator]

Hi Cuong,

You could try this in the QueryCellStyleInfo event handler. Here is some code that hides the +/- pushbutton for the records that doesn't have child records, you can handle the QueryCellStyleInfo checking for the nestedtable's record count and set the +/- pushbutton celltype to Static/Header.

private void gridGroupingControl1_QueryCellStyleInfo(object sender, Syncfusion.Windows.Forms.Grid.Grouping.GridTableCellStyleInfoEventArgs e)
{
if(e.Style.CellType == "PushButton")
{
if(e.TableCellIdentity.DisplayElement.Kind == DisplayElementKind.Record)
{
Record rec = (Record) e.TableCellIdentity.DisplayElement.ParentRecord;
if(rec.NestedTables[0].FilteredRecords.Count == 0)
{
e.Style.CellType = "Static";
e.Style.Enabled = false;
}
}
}
}

Please refer to the attached sample for implementation.
Here is a sample

Best regards,
Haneef

[Cuong Luc]

Thanks for your help, Haneef. If we use this approach, there's a white space for each "Static" cell. I think it's better if the first column (the tiny column on the left that has the black arrow) is hidden. Could I make it hidden?

Regards,

Cuong Luc.

>Hi Cuong,

You could try this in the QueryCellStyleInfo event handler. Here is some code that hides the +/- pushbutton for the records that doesn't have child records, you can handle the QueryCellStyleInfo checking for the nestedtable's record count and set the +/- pushbutton celltype to Static/Header.

private void gridGroupingControl1_QueryCellStyleInfo(object sender, Syncfusion.Windows.Forms.Grid.Grouping.GridTableCellStyleInfoEventArgs e)
{
if(e.Style.CellType == "PushButton")
{
if(e.TableCellIdentity.DisplayElement.Kind == DisplayElementKind.Record)
{
Record rec = (Record) e.TableCellIdentity.DisplayElement.ParentRecord;
if(rec.NestedTables[0].FilteredRecords.Count == 0)
{
e.Style.CellType = "Static";
e.Style.Enabled = false;
}
}
}
}

Please refer to the attached sample for implementation.
Here is a sample

Best regards,
Haneef

[Administrator]

Hi Cuong,

Try setting the TableOptions.ShowRowHeader property to hide/show the first column(rowheader) of the Grid. Here is a code snippet

this.gridGroupingControl1.TableOptions.ShowRowHeader = false;

Best Regards,
Haneef