xtrareports-devexpress-dot-xtrareports-dot-configuration-dot-userdesigneroptions-21f6aea0.md
Specifies how many levels of the field list tree are searched when the user enters text into a search box.
Namespace : DevExpress.XtraReports.Configuration
Assembly : DevExpress.XtraReports.v25.2.dll
NuGet Package : DevExpress.Reporting.Core
public int FieldListMaxExpandLevelOnSearch { get; set; }
Public Property FieldListMaxExpandLevelOnSearch As Integer
| Type | Description |
|---|---|
| Int32 |
Number of levels to expand the tree node and search.
|
You can access this nested property as listed below:
| Object Type | Path to FieldListMaxExpandLevelOnSearch |
|---|---|
| ReportingSettings |
.UserDesignerOptions .FieldListMaxExpandLevelOnSearch
| | Settings |
.UserDesignerOptions .FieldListMaxExpandLevelOnSearch
|
When a data source contains nested fields, the FieldListMaxExpandLevelOnSearch property allows you to restrict search to the specified number of levels. Initially it is set to 6. You can specify its value as follows:
DevExpress.XtraReports.Configuration.Settings.Default.UserDesignerOptions.FieldListMaxExpandLevelOnSearch = 4;
DevExpress.XtraReports.Configuration.Settings.Default.UserDesignerOptions.FieldListMaxExpandLevelOnSearch = 4
Take the following example of an infinitely nested data source:
using DevExpress.DataAccess.ObjectBinding;
using System.Collections.Generic;
using System.ComponentModel;
[HighlightedClass]
[DisplayName("Recurrent Data Source")]
public class RDataProvider {
[HighlightedMember]
[DisplayName("ManagerKey")]
public IEnumerable<ManagerKey> ManagerKey { get; set; }
[HighlightedMember]
[DisplayName("User")]
public IEnumerable<User> User { get; set; }
}
public class User {
public string Name { get; set; }
public string Email { get; set; }
public IEnumerable<ManagerKey> ManagerKeys {get; set; }
}
public class ManagerKey {
public string Name { get; set; }
public string Description { get; set; }
public string ID { get; set; }
public User Manager { get; set; }
}
Imports DevExpress.DataAccess.ObjectBinding
Imports System.Collections.Generic
Imports System.ComponentModel
<HighlightedClass, DisplayName("Recurrent Data Source")>
Public Class RDataProvider
<HighlightedMember, DisplayName("ManagerKey")>
Public Property ManagerKey() As IEnumerable(Of ManagerKey)
<HighlightedMember, DisplayName("User")>
Public Property User() As IEnumerable(Of User)
End Class
Public Class User
Public Property Name() As String
Public Property Email() As String
Public Property ManagerKeys() As IEnumerable(Of ManagerKey)
End Class
Public Class ManagerKey
Public Property Name() As String
Public Property Description() As String
Public Property ID() As String
Public Property Manager() As User
End Class
The FieldListMaxExpandLevelOnSearch value prevents the search box from infinite recursion. The following image shows the search-as-you-type feature when FieldListMaxExpandLevelOnSearch is set to 4:
See Also