AccordionControl.QueryElementIndent Event

Allows you specify a custom indent for each accordion item.

Namespace: DevExpress.XtraBars.Navigation

Assembly: DevExpress.XtraBars.v25.1.dll

NuGet Package: DevExpress.Win.Navigation

Declaration

C#

[DXCategory("Events")]
public event EventHandler<QueryElementIndentEventArgs> QueryElementIndent

VB.NET

<DXCategory("Events")>
Public Event QueryElementIndent As EventHandler(Of QueryElementIndentEventArgs)

Event Data

The QueryElementIndent event's data class is QueryElementIndentEventArgs. The following properties provide information specific to this event:

Property	Description
Element	Gets the processed accordion element.
Indent	Gets or sets the element’s indent.
Level	Gets the element’s hierarchy level.

Remarks

AccordionControl.ChildLevelIndent and AccordionControl.ChildIndentStartLevel properties do not allow you to define different indents for items at the same hierarchy level. Handle the QueryElementIndent event to specify item indents based on custom logic.

The following code snippet changes the indent of items at the first hierarchy level so it matches the sub-group indent:

C#

void accordionControl1_QueryElementIndent(object sender, QueryElementIndentEventArgs e) {
    if (e.Level == 1 && !e.Element.OwnerElement.Elements.Any(i => i.Style == ElementStyle.Group))
        e.Indent = 18;
}

VB.NET

Private Sub accordionControl1_QueryElementIndent(ByVal sender As Object, ByVal e As QueryElementIndentEventArgs)
    If e.Level = 1 AndAlso Not e.Element.OwnerElement.Elements.Any(Function(i) i.Style = ElementStyle.Group) Then e.Indent = 18
End Sub