JoinOperand.AggregateType Property

Gets or sets the type of the aggregate operator.

Namespace: DevExpress.Data.Filtering

Assembly: DevExpress.Data.v19.2.dll

Declaration

C#

public Aggregate AggregateType { get; set; }

VB.NET

Public Property AggregateType As Aggregate

Property Value

Type	Description
Aggregate	An Aggregate enumeration value that specifies the type of the aggregate operator.

Available values:

Name	Description
Exists	Determines whether the object exists in the collection.
Count	Returns the number of objects in the collection.
Max	Returns the maximum expression value in the collection.
Min	Returns the minimum expression value in the collection.
Avg	Evaluates the average of the values in the collection.
Sum	Returns the sum of all the expression values in the collection.
Single	Returns a single object from the collection. The collection must contain no more than one object.
Custom	Returns a custom aggregate function‘s result.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the AggregateType property.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

XDL_how-to-delete-all-criteria-corresponding-to-a-particular-field-from-criteriaoperator-e3396/CS/WindowsApplication3/CriteriaHelper.cs#L39

    if(object.ReferenceEquals(condition, null) || object.ReferenceEquals(expression, null)) return null;
    return new JoinOperand(theOperand.JoinTypeName, condition, theOperand.AggregateType, expression);
}

how-to-make-the-auto-filter-rows-filter-accent-insensitive-e5021/CS/DxSample/Filtering/ClientCriteriaVisitorBase.cs#L30

        return theOperand;
    return new JoinOperand(theOperand.JoinTypeName, condition, theOperand.AggregateType, aggregatedExpression);
}

VB.NET

XDL_how-to-delete-all-criteria-corresponding-to-a-particular-field-from-criteriaoperator-e3396/VB/WindowsApplication3/CriteriaHelper.vb#L48

    End If
    Return New JoinOperand(theOperand.JoinTypeName, condition, theOperand.AggregateType, expression)
End Function

how-to-make-the-auto-filter-rows-filter-accent-insensitive-e5021/VB/DxSample/Filtering/ClientCriteriaVisitorBase.vb#L36

    End If
    Return New JoinOperand(theOperand.JoinTypeName, condition, theOperand.AggregateType, aggregatedExpression)
End Function