protected override IExcelPanel CopyPanel(IXLCell cell)
{
IXLRange newRange = ExcelHelper.CopyRange(Range, cell);
var panel = new ExcelDataItemPanel(newRange, _report, _templateProcessor);
FillCopyProperties(panel);
return(panel);
}
private ExcelDataItemPanel CreateTemplatePanel()
{
var templatePanel = new ExcelDataItemPanel(Range, _report, _templateProcessor)
{
Parent = Parent,
Children = Children,
RenderPriority = RenderPriority,
ShiftType = ShiftType,
Type = Type,
BeforeRenderMethodName = BeforeDataItemRenderMethodName,
AfterRenderMethodName = AfterDataItemRenderMethodName,
};
foreach (IExcelPanel child in templatePanel.Children)
{
child.Parent = templatePanel;
}
return(templatePanel);
}
public override void Render()
{
// Receive parent data item context
HierarchicalDataItem parentDataItem = GetDataContext();
_data = _isDataReceivedDirectly ? _data : _templateProcessor.GetValue(_dataSourceTemplate, parentDataItem);
bool isCanceled = CallBeforeRenderMethod();
if (isCanceled)
{
ResultRange = ExcelHelper.CloneRange(Range);
return;
}
ICustomEnumerator enumerator = null;
try
{
enumerator = EnumeratorFactory.Create(_data);
// Removing the template if there are no data
if (enumerator == null || enumerator.RowCount == 0)
{
DeletePanel(this);
return;
}
// Creating the panel template which will be replicated then
ExcelDataItemPanel templatePanel = CreateTemplatePanel();
_templatePanelRowCount = templatePanel.Range.RowCount();
_templatePanelColumnCount = templatePanel.Range.ColumnCount();
// Allocating space for data
if (enumerator.RowCount > 1)
{
AllocateSpaceForData(templatePanel, enumerator.RowCount);
}
int rowNum = 0;
while (enumerator.MoveNext())
{
object currentItem = enumerator.Current;
ExcelDataItemPanel currentPanel;
if (rowNum != enumerator.RowCount - 1)
{
IXLCell templateFirstCell = templatePanel.Range.FirstCell();
// The template itself is moved down or right, depending on the type of panel
MoveTemplatePanel(templatePanel);
// Copying the template on its previous place for the panel which the current data item will be rendered in
currentPanel = (ExcelDataItemPanel)templatePanel.Copy(templateFirstCell);
}
else
{
// Rendering data directly in the template if there is the last data item
currentPanel = templatePanel;
}
currentPanel.DataItem = new HierarchicalDataItem {
Value = currentItem, Parent = parentDataItem
};
// Fill template with data
currentPanel.Render();
ResultRange = ExcelHelper.MergeRanges(ResultRange, currentPanel.ResultRange);
RemoveAllNamesRecursive(currentPanel);
rowNum++;
}
RemoveName();
}
finally
{
(enumerator as IDisposable)?.Dispose();
}
GroupResult();
CallAfterRenderMethod();
}
