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Var Function (Visual Studio Report Designer)

  • Article

Returns the variance of all non-null values of the specified expression.

Var(Expression, Scope)

Parameters

  • Expression
    (Integer or Float) The expression on which to perform the aggregation. The expression cannot contain aggregate functions.
  • Scope
    (String) The name of a data table, object, grouping, or data region that contains the report items to which to apply the aggregate function. If Scope is specified, the aggregate function applies to all data in the dataset, grouping, or data region. For more information about the Scope parameter, see Built-in Functions for Reports (Visual Studio Report Designer).

Return Type

Returns a Float. Returns a Decimal for decimal expressions and a Double for all other expressions.

Example

The following code example provides the variance of line item totals in the Order grouping or data region.

Var(Fields!LineTotal.Value, "Order")

See Also

Concepts

Using Expressions in a Report (Visual Studio Report Designer)
Adding Custom Code to a Report (Visual Studio Report Designer)
ReportViewer Controls (Visual Studio)
Built-in Functions for Reports (Visual Studio Report Designer)