ASPxGridSettings.ShowHeaderFilterBlankItems Property
Gets or sets a value that specifies whether the filter dropdown contains service filter items (‘Blanks’ and ‘Non blanks’) to allow filtering data by blank and non blank values.
Namespace: DevExpress.Web
Assembly: DevExpress.Web.v20.2.dll
NuGet Package: DevExpress.Web
Declaration
Property Value
| Type | Default | Description |
|---|---|---|
| Boolean | **true** | true, to display the ‘Blanks’ and ‘Non blanks’ filter items within the filter dropdown; otherwise, false. |
Property Paths
You can access this nested property as listed below:
| Library | Object Type | Path to ShowHeaderFilterBlankItems |
|---|---|---|
| ASP.NET Controls and MVC Extensions | ASPxCardView |
|
| ASPxGridView |
|
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| ASPxVerticalGrid |
|
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| GridViewProperties |
|
|
| ASP.NET Bootstrap Controls | BootstrapCardView |
|
| BootstrapGridView |
|
|
| ASP.NET MVC Extensions | CardViewSettings |
|
| CardViewSettings<CardType> |
|
|
| GridViewSettings |
|
|
| GridViewSettings<RowType> |
|
|
| MVCxCardView |
|
|
| MVCxGridView |
|
|
| MVCxGridViewProperties |
|
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| MVCxVerticalGrid |
|
|
| VerticalGridSettings |
|
|
| VerticalGridSettings<ColumnType> |
|
Remarks
Use the ShowHeaderFilterBlankItems property to control whether specific ‘Blanks’ and ‘Non blanks’ filter items should be displayed in the header filter popup window. If enabled, these filter items allow end-users to filter data by blank and non blank values. You can define custom captions for these filter items by using the ASPxGridTextSettingsBase.HeaderFilterShowBlanks and ASPxGridTextSettingsBase.HeaderFilterShowNonBlanks properties.
Note
The ShowHeaderFilterBlankItems property is not in effect (the ‘Blanks’ and ‘Non blanks’ are not displayed) if the GridDataColumnSettings.HeaderFilterMode property is set to CheckedList.