FileManagerSettingsFolders.EnableCallBacks Property

Gets or sets a value that specifies whether the callback technology is used to transfer the requested folders from the server within folder container.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v23.1.dll

NuGet Package: DevExpress.Web

Declaration

C#

[DefaultValue(false)]
public bool EnableCallBacks { get; set; }

VB.NET

<DefaultValue(False)>
Public Property EnableCallBacks As Boolean

Property Value

Type	Default	Description
Boolean	false	true if round trips to the server are performed using callbacks; false if the callback technology isn’t used.

Property Paths

You can access this nested property as listed below:

Library	Object Type	Path to EnableCallBacks
ASP.NET Web Forms Controls	ASPxFileManager	.SettingsFolders .EnableCallBacks
ASP.NET MVC Extensions	FileManagerSettings	.SettingsFolders .EnableCallBacks

Remarks

If the EnableCallBacks property is set to true, the contents of the collapsed folders are not represented on the client. When a folder is expanded for the first time, its content is retrieved from the server and then cached on the client. In this case, a specific Node Loading Panel is displayed near the folder being expanded while waiting for a callback response. The next time the folder is expanded, its content is taken from the client and no callback to the server is performed. If the EnableCallBacks property is set to false, all folders (expanded and collapsed) are sent to the client during the first response.