AggregateColumnDirective

12 Sep 20252 minutes to read

e-aggregate->e-column directive represent a aggregate column of the Angular Grid.

<ejs-grid [dataSource]='data' allowPaging='true' allowSorting='true'>
  <e-columns>
    <e-column field='ID' width='100'></e-column>
    <e-column field='name' headerText='Name' width='100'></e-column>
  </e-columns>
  <e-aggregates>
    <e-aggregate>
      <e-columns>
        <e-column field='ID' type='Min'></e-column>
      </e-columns>
     </e-aggregate>
   </e-aggregates>
</ejs-grid>

Properties

columnName any

Defines the column name to display the aggregate value. If columnName is not defined,
then field name value will be assigned to the columnName property.

Defaults to null

customAggregate any

Defines a function to calculate custom aggregate value. The type value should be set to custom.
To use custom aggregate value in the template, use the key as ${custom}.
Total aggregation: The custom function will be called with the whole data and the current AggregateColumn object.
Group aggregation: This will be called with the current group details and the AggregateColumn object.

Defaults to null

field any

Defines the column name to perform aggregation.

Defaults to null

footerTemplate any

Defines the footer cell template as a string for the aggregate column.
The type name should be used to access aggregate values inside the template.

Defaults to null

format any

Format is applied to a calculated value before it is displayed.
Gets the format from the user, which can be standard or custom
number
and date formats.

Defaults to null

groupCaptionTemplate any

Defines the group caption cell template as a string for the aggregate column.
The type name should be used to access aggregate values inside the template.
Additionally, the following fields can be accessed in the template.

• field: The current grouped field name.
• key: The current grouped field value.

Defaults to null

groupFooterTemplate any

Defines the group footer cell template as a string for the aggregate column.
The type name should be used to access aggregate values inside the template.
Additionally, the following fields can be accessed in the template.

• field: The current grouped field.
• key: The current grouped value.

Defaults to null

type any

Defines the aggregate type of a particular column.
To use multiple aggregates for single column, specify the type as array.
Types of aggregate are,

• sum
• average
• max
• min
• count
• truecount
• falsecount
• custom

  Specify the type value as custom to use custom aggregation.

Defaults to null