Data Summary
ASPxTreeList enables you to calculate summary values for all values within a column or within a group of nodes, and also enables you to display the result inside footer cells.
ASPxTreeList supports two types of summary.
- Total Summaries
These are aggregate function values calculated over all nodes within a tree list control and displayed within the Footer.
- Group Summaries
Summary values are calculated over child nodes and displayed within the Group Footer.
Built-In Aggregate Functions
ASPxTreeList provides five built-in aggregate functions.
- Count: returns the number of records.
- Min: returns the minimum value in a column.
- Max: returns the maximum value in a column.
- Sum: calculates the sum of all values in a column.
- Average: calculates the average value of a column.
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Custom Aggregate Functions
ASPxTreeList enables you to manually implement custom aggregate functions or calculate summary values using a custom algorithm. Custom summaries allow you the following.
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Calculate summaries against nodes that meet specific criteria.
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Involve multiple data fields in calculations.
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Implement complex summary functions.
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