| Pacchetto | mx.collections |
| Classe | public class SummaryField |
| Ereditarietà | SummaryField  Object |
| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Use the dataField property to specify the data field used to generate the summary,
the label property to specify the name of the data field created to hold the summary data,
and the operation property to specify how to create the summary for numeric fields.
You can specify one of the following values:
SUM, MIN, MAX, AVG, or COUNT.
The following example creates summary rows based on two fields of the data provider of the AdvancedDataGrid control:
<mx:AdvancedDataGrid id="myADG"
initialize="gc.refresh();">
<mx:dataProvider>
<mx:GroupingCollection id="gc" source="{dpFlat}">
<mx:Grouping>
<mx:GroupingField name="Region">
<mx:summaries>
<mx:SummaryRow summaryPlacement="group">
<mx:fields>
<mx:SummaryField dataField="Actual"
label="Min Actual" operation="MIN"/>
<mx:SummaryField dataField="Actual"
label="Max Actual" operation="MAX"/>
</mx:fields>
</mx:SummaryRow>
</mx:summaries>
</mx:GroupingField>
<mx:GroupingField name="Territory">
<mx:summaries>
<mx:SummaryRow summaryPlacement="group">
<mx:fields>
<mx:SummaryField dataField="Actual"
label="Min Actual" operation="MIN"/>
<mx:SummaryField dataField="Actual"
label="Max Actual" operation="MAX"/>
</mx:fields>
</mx:SummaryRow>
</mx:summaries>
</mx:GroupingField>
</mx:Grouping>
</mx:GroupingCollection>
</mx:dataProvider>
<mx:columns>
<mx:AdvancedDataGridColumn dataField="Region"/>
<mx:AdvancedDataGridColumn dataField="Territory_Rep"
headerText="Territory Rep"/>
<mx:AdvancedDataGridColumn dataField="Actual"/>
<mx:AdvancedDataGridColumn dataField="Estimate"/>
<mx:AdvancedDataGridColumn dataField="Min Actual"/>
<mx:AdvancedDataGridColumn dataField="Max Actual"/>
</mx:columns>
</mx:AdvancedDataGrid>
This Class has been deprecated and replaced by a new Class
SummaryField2.
Properties operation and summaryFunction are
not present in the Class SummaryField2.
A new property summaryOperation is introduced in
SummaryField2.
Elementi API correlati
Nascondi proprietà pubbliche ereditate
Mostra proprietà pubbliche ereditate| Proprietà | Definito da | ||
|---|---|---|---|
 | constructor : Object
Un riferimento all'oggetto classe o alla funzione di costruzione per una determinata istanza di oggetto. | Object | |
| dataField : String
Data field for which the summary is computed. | SummaryField | ||
| label : String
The property used inside the summary object,
an instance of the SummaryObject class, to
hold summary information. | SummaryField | ||
| operation : String = "SUM"
The function that should be performed on the children. | SummaryField | ||
| summaryFunction : Function
Specifies a callback function to compute a custom data summary. | SummaryField | ||
| Metodo | Definito da | ||
|---|---|---|---|
Constructor. | SummaryField | ||
|
Indica se per un oggetto è definita una proprietà specifica. | Object | |
|
Indica se un'istanza della classe Object si trova nella catena di prototipi dell'oggetto specificato come parametro. | Object | |
|
Indica se la proprietà specificata esiste ed è enumerabile. | Object | |
|
Imposta la disponibilità di una proprietà dinamica per le operazioni cicliche. | Object | |
|
Restituisce la rappresentazione in formato stringa di questo oggetto, formattato in base alle convenzioni specifiche per le versioni localizzate. | Object | |
|
Restituisce la rappresentazione in formato stringa dell'oggetto specificato. | Object | |
|
Restituisce il valore di base dell'oggetto specificato. | Object | |
dataField | proprietà |
public var dataField:String| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Data field for which the summary is computed.
label | proprietà |
public var label:String| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
The property used inside the summary object, an instance of the SummaryObject class, to hold summary information.
For example, if you set the label property to "Summary",
then the computed summary is placed in a property named "Summary"
in the summary object. The property of the SummaryObject instance
containing the summary data will appear as below:
{Summary:1000}
Elementi API correlati
operation | proprietà |
public var operation:String = "SUM"| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
The function that should be performed on the children.
You can specify one of the following values for numeric fields:
SUM, MIN, MAX, AVG, or COUNT.
Il valore predefinito è SUM.
summaryFunction | proprietà |
public var summaryFunction:Function| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Specifies a callback function to compute a custom data summary.
You use this property with the SummaryRow.summaryObjectFunction property,
which defines an instance of the SummaryObject class used
to collect summary data for display in the AdvancedDataGrid control.
The function signature should be as follows:
function mySummaryFunction(iterator:IViewCursor, dataField:String, operation:String):Object
The built-in summary functions for SUM, MIN,
MAX, AVG, and COUNT all return a Number containing
the summary data.
Elementi API correlati
SummaryField | () | Funzione di costruzione |
public function SummaryField(dataField:String = null, operation:String = "SUM")| Versione linguaggio: | ActionScript 3.0 |
| Versione prodotto: | Flex 3 |
| Versioni runtime: | Flash Player 9, AIR 1.1 |
Constructor.
ParametridataField:String (default = null) | |
operation:String (default = "SUM")SUM, MIN, MAX, AVG, or COUNT.
|
Tue Jun 12 2018, 02:44 PM Z