TreeListOptionsColumnFilter.ShowBlanksFilterItems Property

Gets or sets whether the value list and value checklist in the pop-up filter menu contain the (Blanks) and (Non Blanks) filter conditions.

Namespace: DevExpress.XtraTreeList.Columns

Assembly: DevExpress.XtraTreeList.v24.1.dll

NuGet Packages: DevExpress.Win.Navigation, DevExpress.Win.TreeList

Declaration

C#

[DefaultValue(DefaultBoolean.Default)]
[XtraSerializableProperty]
public virtual DefaultBoolean ShowBlanksFilterItems { get; set; }

VB.NET

<DefaultValue(DefaultBoolean.Default)>
<XtraSerializableProperty>
Public Overridable Property ShowBlanksFilterItems As DefaultBoolean

Property Value

Type	Default	Description
DefaultBoolean	Default	True if the (Blanks) and (Non Blanks) filter conditions are displayed; False if not. Default if the visibility depends on whether the current column contains Null or DBNull values.

Available values:

Name	Description	Return Value
True	The value is true.	0
False	The value is false.	1
Default	The value is specified by a global option or a higher-level object.	2

Property Paths

You can access this nested property as listed below:

Object Type	Path to ShowBlanksFilterItems
TreeListColumn	.OptionsFilter .ShowBlanksFilterItems

Remarks

The value list and value checklist in the pop-up filter menu can contain the (Blanks) and (Non Blanks) filter conditions that select records with and without Null, DBNull, and empty string values in the current column.

Note

The value checklist supports only the (Blanks) filter condition - (Non Blanks) is not supported.