CustomSummary - CreateSummaryMethod Being Called But Not Shown on Grid

[Administrator]

Hi, I have a grouping grid with Custom Summary objects derived from SummaryBase

My class is based on the TotalSummary sample class.

I can see lots of calls to
public static ISummary CreateSummaryMethod(SummaryDescriptor sd, Record record)

But the caption never actually shows my custom total - it just aggregates the values.

I put a breakpoint on the overridden ToString() function as used for tooltip effect and that never actually gets called either

Can anyone help?

[Administrator]

Did you create a GridSummaryRowDescriptor where the summaries can be shown?

For example see that code in the CustomSummary example:

			GridSummaryColumnDescriptor sd1 = new GridSummaryColumnDescriptor();
			sd1.Name = "QuantityTotal";
			sd1.DataMember = "Quantity";
			sd1.DisplayColumn = "Quantity";
			sd1.Format = "{Total}";
			sd1.SummaryType = SummaryType.Custom;
			this.gridGroupingControl1.TableDescriptor.SummaryRows.Add(new GridSummaryRowDescriptor("Row 1", "Total", sd1));

Stefan

[Administrator]

I''ve investigated this further. Everthing appears to be set up correctly.

My handler is being called correctly:
public static void QueryCustomSummaryHandler(object sender, Syncfusion.Windows.Forms.Grid.Grouping.GridQueryCustomSummaryEventArgs e)

QueryCustomSummaryHandler is a static "factory" type method that works out which ITreeTableSummary CreateSummaryMethod(SummaryDescriptor sd, Record record) to call base on some rules.

The first time I call the factory everyhting runs OK.

Each subsequent time that I call it, I can see the correct CreateSummaryMethod being called but it actually displays the values from the very first factory method.

Is it possible that somewhere within the SummaryDescriptor object[s] there''s a singleton or similar that is not being reset????

Thanks

Jason

[Administrator]

Fixed it! I needed to call tableDescriptor.SummaryRows.Clear(); to clear any knowledge of previous CustomSummary objects