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Unable to transfer single item with listbox inside a tooltip

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ListBox

This is a migrated thread and some comments may be shown as answers.

Larry asked on 20 Aug 2010, 01:01 PM

Hello,

I'm using two listboxes inside of a tooltip. The list boxes are configured for single transfer with drag and drop enabled. I am having a problem where I am unable to transfer a single item between the listboxes. Any ideas why this might be happening? I'm using VS2010 and the .NET 4 version of the latest build of Telerik.

Customer.aspx:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="customers.aspx.cs" Inherits="customers" %>

<%@ Register Src="assignusers.ascx" TagName="ProductDetails" TagPrefix="uc1" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<title></title>

</head>

<body>

<form id="form1" runat="server">

<div>

<asp:ScriptManager ID="ScriptManager1" runat="server" />

<telerik:RadAjaxLoadingPanel ID="LoadingPanel1" runat="server" Skin="Windows7" />

<telerik:RadAjaxManager ID="AjaxManager1" runat="server" EnablePageHeadUpdate="false">

<AjaxSettings>

<telerik:AjaxSetting AjaxControlID="RadGrid1">

<UpdatedControls>

<telerik:AjaxUpdatedControl ControlID="RadGrid1"/>

<telerik:AjaxUpdatedControl ControlID="Literal1" />

<telerik:AjaxUpdatedControl ControlID="RadToolTipManager1" />

</UpdatedControls>

</telerik:AjaxSetting>

</AjaxSettings>

</telerik:RadAjaxManager>

<telerik:RadToolTipManager ID="RadToolTipManager1" OffsetY="-1" HideEvent="ManualClose"

Width="620" Height="230" runat="server" EnableShadow="true" OnAjaxUpdate="OnAjaxUpdate"

RelativeTo="Element" Position="MiddleRight" Modal="true">

</telerik:RadToolTipManager>

<asp:Literal ID="Literal1" runat="server" Text="" />

<telerik:RadGrid ID="RadGrid1" runat="server" AutoGenerateColumns="false" DataSourceID="EntityDataSource1"

AllowAutomaticInserts="true" AllowAutomaticUpdates="true" AllowAutomaticDeletes="true" AllowPaging="true" PageSize="10"

EnableLinqExpressions="false" OnItemCommand="RadGrid1_ItemCommand" OnItemDataBound="RadGrid1_ItemDataBound">

<MasterTableView DataKeyNames="id" CommandItemDisplay="Top" EditMode="PopUp">

<EditFormSettings CaptionFormatString="Add/Edit Customers" PopUpSettings-Modal="true"

EditFormType="WebUserControl" UserControlName="editcustomer.ascx" PopUpSettings-Width="700px">

</EditFormSettings>

<Columns>

<telerik:GridButtonColumn ButtonType="LinkButton" Text="edit" CommandName="Edit" />

<telerik:GridButtonColumn ButtonType="LinkButton" Text="delete" CommandName="Delete" />

<telerik:GridBoundColumn DataField="name" HeaderText="Name" />

<telerik:GridTemplateColumn UniqueName="AssignUsers">

<ItemTemplate>

<asp:HyperLink ID="targetControl" runat="server" NavigateUrl="#" Text="Assign Users" />

</ItemTemplate>

</telerik:GridTemplateColumn>

</Columns>

</MasterTableView>

</telerik:RadGrid>

</div>

<asp:EntityDataSource ID="EntityDataSource1" runat="server"

ConnectionString="name=EntityFrameworkTestEntities"

DefaultContainerName="EntityFrameworkTestEntities" EnableDelete="True"

EnableFlattening="False" EnableInsert="True" EnableUpdate="True"

EntitySetName="Customers" Include="Users" OnDeleted="EntityDataSource1_Deleted"

OnInserting="EntityDataSource1_Inserting" OnUpdating="EntityDataSource1_Updating"

OnInserted="EntityDataSource1_Inserted" OnUpdated="EntityDataSource1_Updated"

ViewStateMode="Enabled">

</asp:EntityDataSource>

</form>

</body>

</html>

assignusers.ascx:

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="assignusers.ascx.cs" Inherits="assignusers" %>

<%@ Import Namespace="Telerik.Web.UI" %>

<div>

<table>

<tr>

<td>Users <b>NOT</b> Assigned To This Customer</td>

<td>Users Assigned To This Customer</td>

</tr>

<tr>

<td>

<telerik:RadListBox ID="RadListBox1" runat="server" Width="300px" Height="200px" AutoPostBack="false"

SelectionMode="Single" AllowTransfer="true" TransferToID="RadListBox2" AutoPostBackOnTransfer="true"

EnableDragAndDrop="true" AllowReorder="false">

</telerik:RadListBox>

</td>

<td>

<telerik:RadListBox ID="RadListBox2" runat="server" Width="300px" Height="200px" AutoPostBack="false"

SelectionMode="Single" AllowReorder="false" EnableDragAndDrop="true" AutoPostBackOnTransfer="true"

AllowTransfer="true" TransferToID="RadListBox1"

OnDeleting="RadListBox2_Deleting" OnInserting="RadListBox2_Inserting">

</telerik:RadListBox>

</td>

</tr>

</table>

</div>

assignusers.ascx.cs:

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Collections.Specialized;

using Telerik.Web.UI;

public partial class assignusers : System.Web.UI.UserControl

{

public int Id

{

get { return Convert.ToInt32(ViewState["id"]); }

set { ViewState["id"] = value.ToString(); }

}

protected void Page_Load(object sender, EventArgs e)

{

RadListBox1.Items.Clear();

RadListBox2.Items.Clear();

using (var context = new EntityFrameworkTestModel.EntityFrameworkTestEntities())

{

if (RadListBox2.DataSource == null)

{

var customer = context.Customers.First(p => p.id == Id);

RadListBox2.DataSource = customer.Users.ToList();

RadListBox2.DataKeyField = "id";

RadListBox2.DataTextField = "name";

RadListBox2.DataValueField = "id";

RadListBox2.DataBind();

}

if (RadListBox1.Items.Count == 0)

{

var users = from u in context.Users

orderby u.name

select u;

foreach (var user in users)

{

if (RadListBox2.FindItemByValue(user.id.ToString()) == null)

{

RadListBoxItem _item = new RadListBoxItem(user.name, user.id.ToString());

RadListBox1.Items.Add(_item);

}

protected void RadListBox2_Deleting(object sender, RadListBoxDeletingEventArgs e)

{

using (var context = new EntityFrameworkTestModel.EntityFrameworkTestEntities())

{

var customer = context.Customers.First(p => p.id == Id);

foreach (RadListBoxItem item in e.Items)

{

int _itemid = Convert.ToInt32(item.Value);

var user = context.Users.First(u => u.id == _itemid);

customer.Users.Remove(user);

}

context.SaveChanges();

}

protected void RadListBox2_Inserting(object sender, RadListBoxInsertingEventArgs e)

{

using (var context = new EntityFrameworkTestModel.EntityFrameworkTestEntities())

{

var customer = context.Customers.First(p => p.id == Id);

foreach (RadListBoxItem item in e.Items)

{

int _itemid = Convert.ToInt32(item.Value);

var user = context.Users.First(u => u.id == _itemid);

customer.Users.Add(user);

}

context.SaveChanges();

}

Thanks in advance.
Larry

5 Answers, 1 is accepted

answered on 08 Sep 2010, 09:33 AM

radlistboxtest.zip

Hello Larry,

I was not able to reproduce the problem in a sample project. I suppose the problem is something specific of your project. I suggest that you open a support ticket and attach sample runnable project that reproduces the problem that you are facing. This will allow us to trobouleshoot the issue. Just for reference I am attaching my sample project to this replay. Can you reproduce the problem on it?

Greetings,
Genady Sergeev
the Telerik team

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