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EntityDataSource

  • AGENDAS MISIONALES
    • TRANSICIÓN ENERGÉTICA JUSTA
    • BIODIVERSIDAD Y SERVICIOS ECOSISTÉMICOS
  • AGENDAS TRANSVERSALES
    • OPERACIONES MÁS VERDES
    • CONOCIMIENTO PARA EL NEGOCIO

This example shows how to codelessly bind RadTreeView to EntityDataSource. Since the EntityDataSource is not hierarchical by nature you need to set the DataFieldID and DataFieldParentID properties: 

<telerik:RadTreeView runat="server" ID="RadTreeView1" 
    DataSourceID="EntityDataSource1" DataTextField="Text" 
    DataFieldID="id" DataFieldParentID="parentId" >
</telerik:RadTreeView>
<asp:EntityDataSource runat="server" ID="EntityDataSource1" 
	ConnectionString="name=TelerikReadWriteEntities"
	DefaultContainerName="TelerikReadWriteEntities" EntitySetName="Links">
</asp:EntityDataSource>

You may also see how to utilize Telerik OpenAccess ORM as a data access layer for our AJAX controls by visiting the OpenAccess ORM live demos here.

  • DefaultVB.aspx
<%@ Page Language="VB"  Inherits="Telerik.QuickStart.QsfPage" %>

<%@ Register Assembly="System.Web.Entity, Version=3.5.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
    Namespace="System.Web.UI.WebControls" TagPrefix="asp" %>
<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <div class="demo-container size-thin">
        <telerik:RadTreeView RenderMode="Lightweight" runat="server" ID="RadTreeView1" DataSourceID="EntityDataSource1" 
            DataTextField="Text" DataFieldID="id" DataFieldParentID="parentId">
            <DataBindings>
                <telerik:RadTreeNodeBinding Depth="0" Expanded="true"></telerik:RadTreeNodeBinding>
            </DataBindings>
        </telerik:RadTreeView>
    </div>
    <asp:EntityDataSource runat="server" ID="EntityDataSource1" ConnectionString="name=TelerikReadWriteEntities"
        DefaultContainerName="TelerikReadWriteEntities" EntitySetName="Links">
    </asp:EntityDataSource>
    </form>
</body>
</html>

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