SourceDragItems empty when Listbox dynamically binded.

[Steve]

Hi Telerik Team,

I use this link and found that this is a very good example of showing something into my product.
http://demos.telerik.com/aspnet-ajax/listbox/examples/functionality/draganddrop/defaultcs.aspx

I open the code and implement the things as discussed in this particular page and found the things proper.

Now the problem is this that I bind the ListBox with the database and try to drag the listbox item from there into the textbox. but now it is giving me that in the function RadListBox_Dropped, e.SourceDragItems.Count become 0 every time.

I am writing my code here.

protected void RadListBox_Dropped(object sender, RadListBoxDroppedEventArgs e)
    {
        if (txtNoteArea.ClientID == e.HtmlElementID)
        {
            txtNoteArea.Text = String.Empty;
            foreach (RadListBoxItem item in e.SourceDragItems)
            {
                txtNoteArea.Text += item.Text + ", \n";
            }
            if (txtNoteArea.Text.Length > 0)
                txtNoteArea.Text = txtNoteArea.Text.TrimEnd(new char[] { ',', ' ', '\n' });
        }
    }
    public void BindStandardNotes()
    {
        DataSet dsMC = new DataSet();
        SqlConnection con = new SqlConnection(System.Web.Configuration.WebConfigurationManager.AppSettings["con"]);
        SqlDataAdapter adp = new SqlDataAdapter("SPNAME", con);
        adp.SelectCommand.CommandType = CommandType.StoredProcedure;
        adp.Fill(dsMC);
        lstStandardNotes.DataSource = dsMC;
        lstStandardNotes.DataValueField = "ID";
        lstStandardNotes.DataTextField = "TEXT";
        lstStandardNotes.DataBind();
    }

<telerik:RadListBox ID="lstStandardNotes" runat="server" Width="90%" Height="200px" SelectionMode="Multiple"
                                                                        AutoPostBackOnReorder="false" EnableDragAndDrop="true" OnDropped="RadListBox_Dropped" />
<asp:TextBox ID="txtNoteArea" runat="server" Wrap="true" Rows="8" TextMode="MultiLine" Width="90%" Height="200px" ValidationGroup="QAN" />

This code is working fine if I put some static items into the ListBox, but when I bind with the Database, the SourceDragItem count become 0.

Please assist me ASAP.

Regards,
Steve Austin

[Peter Filipov]

Hello Steve,

I'm sending you a sample project that implements your scenario.

Greetings,
Peter Filipov
the Telerik team