ASPxTreeList.ClientLayout Event

Enables you to save and restore the previously saved layout of the ASPxTreeList.

Namespace : DevExpress.Web.ASPxTreeList

Assembly : DevExpress.Web.ASPxTreeList.v25.2.dll

Declaration

C#
VB.NET

csharp

public event ASPxClientLayoutHandler ClientLayout

Public Event ClientLayout As ASPxClientLayoutHandler

Event Data

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

Property	Description
LayoutData	Gets or sets the layout data.
LayoutMode	Indicates whether a control’s layout should be saved or restored.

Remarks

Handle the ClientLayout event to save and restore the tree list’s layout from a data store.

Save Layout
Restore Layout

You can also save and restore the tree list’s layout by using the ASPxTreeList.SaveClientLayout and ASPxTreeList.LoadClientLayout methods.

Example

This example shows how to save/restore the ASPxTreeList’s layout to/from a data store.

C#
VB.NET

csharp

protected void ASPxTreeList1_ClientLayout(object sender,
DevExpress.Web.ASPxClientLayoutArgs e) {
    if (e.LayoutMode == DevExpress.Web.ClientLayoutMode.Saving) {
        SaveUserLayoutToDatabase(userID, "AccountTreeList", e.LayoutData);
    }
    else {
        if (System.IO.File.Exists(fileName))
            e.LayoutData = RestoreUserLayoutFromDatabase(userID, "AccountTreeList");
    }
}

Protected Sub ASPxTreeList1_ClientLayout(sender As Object, _
e As DevExpress.Web.ASPxClientLayoutArgs)
   If e.LayoutMode = DevExpress.Web.ClientLayoutMode.Saving Then
      SaveUserLayoutToDatabase(userID, "AccountTreeList", e.LayoutData)
   Else
      If File.Exists(fileName) Then
         e.LayoutData = RestoreUserLayoutFromDatabase(userID, "AccountTreeList")
      End If
   End If
End Sub