Manual Summary Calculation - ASP.NET AJAX Tree List Demo

Department				Location	Budget
Corporate Headquarters				Monterey	$1,000,000.00
	Sales and Marketing			San Francisco	$22,000.00
		Field Office: Canada		Toronto	$500,000.00
		Field Office: East Coast		Boston	$500,000.00
		Pacific Rim Headquarters		Kuaui	$600,000.00
			Field Office: Singapore	Singapore	$300,000.00
			Field Office: Japan	Tokyo	$500,000.00
				Selected:	$0.00
		Marketing		San Francisco	$1,500,000.00
				Selected:	$0.00
	Finance			Monterey	$40,000.00
	Engineering			Monterey	$1,100,000.00
		Consumer Electronics Div.		Burlington, VT	$1,150,000.00
			Software Development	Monterey	$40,000.00
				Selected:	$0.00
		Software Products Div.		Monterey	$1,200,000.00
			Quality Assurance	Monterey	$48,000.00
			Customer Support	Monterey	$38,000.00
			Research and Development	Burlington, VT	$460,000.00
			Customer Services	Burlington, VT	$850,000.00
				Selected:	$0.00
				Selected:	$0.00
				Selected:	$0.00
				SELECTED:	$0.00

- Description
- Description
- ASPX
- ASPX
- C#
- C#
- VB
- VB

The DevExpress ASP.NET Tree List (ASPxTreeList) enables you to manually implement custom aggregate functions or calculate summary values using a custom algorithm. Custom summaries allow you to do the following.

Calculate summaries against nodes that meet specific criteria
Involve multiple data fields in calculations
Implement complex summary functions

To calculate summaries manually, set the summary item's SummaryType property to Custom, and handle the CustomSummaryCalculate event.

In this demo, the summary for the budget of selected departments is calculated.

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