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  [Collapse]DevExpress.Xpf.Editors.ExpressionEditor
   [Collapse]ExpressionEditorControl Class
     ExpressionEditorControl Members
    [Expand]ExpressionEditorControl Constructor
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 End-User Documentation

ExpressionEditorControl Class

An Expression Editor control.

Namespace:DevExpress.Xpf.Editors.ExpressionEditor
Assembly:DevExpress.Xpf.Core.v17.1.dll

Expanded Syntax

Expanded Remarks

The Expression Editor allows end-users to edit various Boolean or regular expressions in controls:

In this editor, an end-user can type an expression manually, or select functions, operators and operands using the editor's controls.

An expression is a string that, when parsed and processed, evaluates some value. Expressions consist of column/field names, constants, operators and functions. Column/field names must be wrapped with brackets. The following are examples of regular expressions:

"[Quantity] * [UnitPrice] * (1 - [BonusAmount])"
"[FirstName] + ' ' + [LastName]"

Boolean expressions:

"[Country] == 'USA'"
"[OrderDate] > #8/16/1994# AND [Quantity] > 20"

To obtain the current expression, use the Expression property.

The Expression Editor supports numerous standard functions, allowing end-users to easily perform different string, date-time, logical and math operations over data. They can be accessed by selecting the Functions category.

Expanded Inheritance Hierarchy

System.Object
    System.Windows.Threading.DispatcherObject
       System.Windows.DependencyObject
          System.Windows.Media.Visual
             System.Windows.UIElement
                System.Windows.FrameworkElement
                   System.Windows.Controls.Control
                      ExpressionEditorControl

Expanded See Also

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