Hi,
I have a treeview that is built manually (no data-bind) using the metro theme. I'd like to set some node colours to red but neither of the two options below seem to have any effect?
ret.CssClass = "red";ret.BackColor = Color.Red; var node = new RadTreeNode(valuedata, textdata);
node.Checked = true;
rddtboxBuisness.EmbeddedTree.Nodes.Add(node);
When adding nodes to the control I cant default the checkbox to true...
am I doing anything wrong ?

I'm trying to add data/item to a listbox with custom ClientItemTemplate where I'm not using Text or Value but using other variables.
<telerik:RadListBox ID="AlarmListBox" runat="server" Height="100%" Width="100%" RenderMode="Lightweight" ClientDataSourceID="AlarmClientDataSource" OnClientSelectedIndexChanged="OnListItemSelected"> <EmptyMessageTemplate> <asp:Label runat="server" Text="No Alerts"></asp:Label> </EmptyMessageTemplate> <ClientItemTemplate> <div class="alarm"> <div class="alarm-wrapper"> <img src="#: src #" class="img-responsive alarm-list-image" style="float: left" ;/> <dl class="alarm-list-details"> <dt class="name">#= type #</dt> </dl> <div style="clear: left" /> </div> </div> </ClientItemTemplate></telerik:RadListBox>At first, I was using the listbox without a data source and I was able to add to the data by setting the attributes of a new listboxitem from the client-side.
Then I wanted to use a dummy REST service to test populating results.
I was able to populate the listbox using the clientdatasource using "select" only.
Now I want to be able to use both functionality, to populate the listbox from the REST service and manually. I tried to add directly to the listbox but it failed because their is no attributes and when I added items to clientdatasource using add() method but the new item did not appear in listbox.
Which method of adding an item is correct bearing in mind that I want to update the results to the REST service eventually and how can it be done.
I was trying to use a listbox with clientdatasource. But since the listbox cannot be rebinded yet, I decided to switch either grid or listview.
I was having some trouble selecting an item from listview so I'm using a grid with clientitemtemplate to fit by data into a single column.
What I want is to apply the ripple effect available when selecting an item in listbox to the grid,
so when I select a cell from the column it will have the ripple effect.
if you can please provide me with a solution.
Hi,
I have a RadGrid with EditFormType="WebUserControl". In my usercontrol I have a custom validator to check the value and allow to update or not.
My problem is that _dataItem is null on the CustomValidator_ServerValidate event.
I try this code :
public object DataItem{ get { return (object)ViewState["DataItem"]; } set { ViewState["DataItem"] = value; }}But even with ViewState DataItem is always null (in CustomValidator_ServerValidate event).
Have you a solution ?


I'm having an issue with date formats on the grid. I've read through lot's of related threads, but they don't seem to be correcting my situation. The date is display as: 11/03/2016T00:00:00
The page has the column defined as:
<telerik:GridDateTimeColumn UniqueName="RECORDSTARTDATE" HeaderText="Record Start Date" DataField="RECORDSTARTDATE" ShowFilterIcon="false" DataFormatString="{0:dd MMM yyyy}" DataType="System.DateTime" HtmlEncode="false" ItemStyle-CssClass="center" CurrentFilterFunction="GreaterThanOrEqualTo" HeaderStyle-Width="120px" />
The DataFormatString is defined as ="{0:dd MMM yyyy}" so my dates not coming out even close.
Any help would be appreciated.

I have two radlistbox inside of a radgrid, I want to use the transfer between this two radlistbox, but only works the first transfer, later if I want to transfer again it doesn't work in any direction. What am I missing?
Thanks!
<telerik:GridTemplateColumn HeaderText="Plants" UniqueName="Plants" Visible="false"> <EditItemTemplate> <telerik:RadListBox Width="200px" RenderMode="Lightweight" runat="server" DataKeyField="PlantId" ID="rdlPlants" EnableDragAndDrop="True" Skin="Bootstrap" SelectionMode="Multiple" AutoPostBackOnTransfer="true" Height="200px" AllowTransfer="true" TransferToID="rdlSelectedPlants" OnItemDataBound="rdlPlants_ItemDataBound" OnTransferred="rdlPlants_Transferred"> <ButtonSettings ShowTransferAll="false" ShowReorder="false"></ButtonSettings> <ItemTemplate> <%# Eval("Pint").ToString() + " - " + (Eval("Name1") != null ? Eval("Name1").ToString() : string.Empty) %> </ItemTemplate> </telerik:RadListBox> <telerik:RadListBox RenderMode="Lightweight" Width="200px" ID="rdlSelectedPlants" runat="server" DataKeyField="PlantId" Height="200px" Skin="Bootstrap" OnItemDataBound="rdlPlants_ItemDataBound"> <ButtonSettings ShowTransfer="false" ShowTransferAll="false"></ButtonSettings> <ItemTemplate> <%# Eval("Pint").ToString() + " - " + (Eval("Name1") != null ? Eval("Name1").ToString() : string.Empty) %> </ItemTemplate> </telerik:RadListBox> </EditItemTemplate> <InsertItemTemplate> <telerik:RadListBox Width="200px" RenderMode="Lightweight" runat="server" DataKeyField="PlantId" ID="rdlPlants" EnableDragAndDrop="True" Skin="Bootstrap" SelectionMode="Multiple" AutoPostBackOnTransfer="true" Height="200px" AllowTransfer="true" TransferToID="rdlSelectedPlants" OnItemDataBound="rdlPlants_ItemDataBound" OnTransferred="rdlPlants_Transferred"> <ButtonSettings ShowTransferAll="false" ShowReorder="false"></ButtonSettings> <ItemTemplate> <%# Eval("Pint").ToString() + " - " + (Eval("Name1") != null ? Eval("Name1").ToString() : string.Empty) %> </ItemTemplate> </telerik:RadListBox> <telerik:RadListBox RenderMode="Lightweight" Width="200px" ID="rdlSelectedPlants" runat="server" DataKeyField="PlantId" Height="200px" Skin="Bootstrap" OnItemDataBound="rdlPlants_ItemDataBound"> <ButtonSettings ShowTransfer="false" ShowTransferAll="false"></ButtonSettings> <ItemTemplate> <%# Eval("Pint").ToString() + " - " + (Eval("Name1") != null ? Eval("Name1").ToString() : string.Empty) %> </ItemTemplate> </telerik:RadListBox> </InsertItemTemplate> </telerik:GridTemplateColumn>