TreeListOptionsFilter.FilterEditorAllowCustomExpressions Property
Gets or sets whether the Filter Editor allows you to display, create and edit custom expressions—expressions that cannot be converted to Filter Editor nodes.
Namespace: DevExpress.XtraTreeList
Assembly: DevExpress.XtraTreeList.v21.1.dll
NuGet Packages: DevExpress.Win.Design, DevExpress.Win.TreeList
Declaration
[DefaultValue(DefaultBoolean.Default)]
[XtraSerializableProperty]
public DefaultBoolean FilterEditorAllowCustomExpressions { get; set; }
Property Value
Type | Default | Description |
---|---|---|
DefaultBoolean | **Default** | A value that specifies whether the Filter Editor allows you to display, create and edit custom expressions. |
Available values:
Name | Description |
---|---|
True | Corresponds to a Boolean value of true. |
False | Corresponds to a Boolean value of false. |
Default | The default behavior determined by the control’s logic. |
Property Paths
You can access this nested property as listed below:
Library | Object Type | Path to FilterEditorAllowCustomExpressions |
---|---|---|
WinForms Controls | GanttControl |
|
ResourcesTree |
|
|
TreeList |
|
|
Reporting | XRDesignFieldList |
|
XRDesignReportExplorer |
|
Remarks
Individual filter expressions (for example, expressions that contain advanced or custom functions) cannot be converted to Filter Editor nodes. Below is an example:
[Sales Date] > AddDays(LocalDateTimeToday(), -25)
The AllowCustomExpressions property specifies whether and how the Filter Editor displays these expressions. The following options are available:
- True
The Filter Editor displays custom expressions, and allows users to edit existing and create new custom expressions.
Users can create new custom expressions from a context menu.
Users can click the expression to open the Expression Editor, which allows them to edit the expression.
Handle the TreeList.FilterEditorCreated event to customize this Expression Editor.
- Default
- The Filter Editor displays custom expressions as simple text. A user cannot edit or create custom expressions.
- False
- The Filter Editor does not display custom expressions, and does not allow users to create new ones.