windowsforms-devexpress-dot-xtragrid-dot-gridsummaryitem-dot-underscore-properties.md
Represents a footer summary item.
| Name | Description |
|---|---|
| Collection | Gets a collection to which the summary item belongs. |
| DisplayFormat | Gets or sets the display format rule for the GridSummaryItem value. An empty string to apply the default format rule. |
| FieldName | Gets or sets the name of a dataset field whose values are used for summary calculation. |
| Format | Gets or sets the IFormatProvider object which specifies how values should be formatted. |
| HasValue | Returns whether the GridSummaryItem has a non- null value. |
| Index | Gets the summary item’s position within the owning collection. |
| Mode | Gets or sets whether to calculate the current summary against all rows or the selection. Use this property when you enable multiple row selection (see ColumnView.OptionsSelection.MultiSelect). This property is not supported in server mode. |
| SummaryType | Gets or sets the aggregation function type. |
| SummaryValue | Gets the total summary item’s calculated value. If the AutoUpdateTotalSummary setting is disabled, this value may not reflect the latest View data. To ensure the summary is up to date, call the GridView.UpdateTotalSummary method to forcibly recalculate summaries. |
| Tag | Gets or sets data associated with the summary item. |
See Also