I wonder there are some ways to reorder columns in the treelist that declared on design?
I have page that using treelist to load data, I declared some columns on design and on runtime I added some columns into the treelist but not in the end of it. My columns are not only Treelistbound columns but also TreeListTemplateColumn and when I add them and load page it's seem fine, but when I do anything (load next page, refresh by button..etc) I show error "ERROR:Invalid column type: "TreeListTemplateColumn"."
Please Try again!
That my problem, so could you guys help me to fix it?
Thanks.

Hi,

I am trying to use a data bound Checkbox in a RadGrid Template Column but have come across several problems.
Firstly, i was trying to use the asp checkbox control. This works for displaying the existing data from my database but i get a DBnull error when i try to insert a new record.
So i tried to resolve this error by trying to capture the DBNull with a CheckNull function:
 

but this didn't work. I then tried a custom CheckBox which overrides the DBNull error but this didn't fix the problem either



I then searched the Telerik forums for a solution & came across the telerik:GridCheckBoxColumn (from this site http://demos.telerik.com/aspnet-ajax/grid/examples/dataediting/alleditablecolumns/defaultcs.aspx) BUT i do not have this available to me! When i enter this control i get an error saying it does not exist.

Is this an old control item which has been phased out or should it still be available to me on the latest version of Telerik controls?

if it isn't available then can you provide an alternative solution for the databound checkbox which is causing a DBnull conversion error?

Regards,

Shuja

Hi,

 <telerik:GridBoundColumn DataField="category_name" HeaderText="Kategori" FilterControlWidth="100px"  AutoPostBackOnFilter="true"  ShowFilterIcon="false" CurrentFilterFunction="Contains" SortExpression="category_name"
                        DataType="System.String">


CurrentFilterFunction is  case sensetive, For example, I want to find  AHMET. When I wrote ahmet, it gave "No records to display."
But there  was AHMET  in the record. I tied other founctions like contains, staerwith... etc. But I didn't find helpful function. Can yqu help me?

Thank you.

Hello

I have a radtoolbar with 6 buttons in it. The button redirect to different windows in my application.
I am currently using the postbackurl property, On the click of the button i need it to open a new window with the url.

Is there a way i can do this?

Thanks in advance

I am getting this error related to WebResource.axd. This happens when I click a button and it opens up a document from sharepoint site.

User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; WOW64; Trident/4.0; SLCC1;
.NET CLR 2.0.50727; .NET CLR 3.0.30729; .NET CLR 3.5.21022; .NET CLR 3.5.30729; InfoPath.3; .NET4.0C; .NET4.0E)
Timestamp: Fri, 3 Sep 2010 17:55:21 UTC

Message: Sys.WebForms.PageRequestManagerServerErrorException:
Retrieving the COM class factory for component with CLSID
{36D27C48-A1E8-11D3-BA55-00C04F72F325} failed due to the following error: 80040154.
Line: 6
Char: 62099
Code: 0
URI: http://sampledomainname/Telerik.Web.UI.WebResource.axd?_TSM_HiddenField_=ctl00_ScriptManager_TSM&compress
=1&_TSM_CombinedScripts_=%3b%3bSystem.Web.Extensions%2c+Version%3d3.5.0.0%2c+
Culture%3dneutral%2c+PublicKeyToken%3d31bf3856ad364e35%3aen-US%3ad0c4ca6e-6b5d-49b6-922d-5244924fb100%3aea597d4b%3ab25378d2%3b
Telerik.Web.UI%2c+Version%3d2010.2.826.35%2c+Culture%3dneutral%2c+PublicKeyToken
%3d121fae78165ba3d4%3aen-US%3a86f56c91-febb-4172-ae71-6c2ba2372421%3a16e4e7cd%3a
ed16cbdc%3af7645509%3a24ee1bba%3a19620875%3a874f8ea2%3a490a9d4e%3a1e771326%3a4cacbc31%3ae330518b%3a8e6f0d33%3a6a6d718d%3a8674
cba1%3ab7778d6c%3ac08e9f8a%3aa51ee93e%3a59462f1%3a58366029%3aaa288e2d%3ac8618e41%3ae4f8f289

I am getting an error 'Cannot create an object of type 'Telerik.Web.UI.RadComboBoxItemsRequestedEventHandler' from its string representation 'rcbPersonGroupSelector_ItemsRequested' for the 'OnItemsRequested' property.' on the Rad combo box.

This is the code used :

<telerik:RadComboBox ID="rcbPersonGroupSelector" <br>    runat="server" Height="190px" Width="420px" MarkFirstMatch="true" EnableLoadOnDemand="true"<br>    HighlightTemplatedItems="true" OnItemDataBound="rcbPersonGroupSelector_ItemDataBound"<br>    OnItemsRequested="rcbPersonGroupSelector_ItemsRequested" IsCodeSet="false" Title="Select"><br>    <headertemplate><br>            <ul><br>            <li class="PersonSelector_col1">Name</li><br>            <li class="PersonSelector_col2">AAA</li>       <br>            </ul><br>            </headertemplate><br>    <ItemTemplate><br>        <ul><br>                <li class="PersonSelector_col1"><br>                <%#DataBinder.Eval(Container, "DataItem.Name") %>                    <br>                <li class="PersonSelector_col2"><br>                <%#DataBinder.Eval(Container, "DataItem.AAA") %>    <br>            </ul><br>    <br>    </ItemTemplate><br><span class="Apple-style-span" style="color: rgb(0, 17, 25); font-family: Consolas, 'Courier New', monospace; font-size: 13px; line-height: normal; "><span style="color: blue; "></</span><span style="color: maroon; ">telerik:RadComboBox</span><span style="color: blue; ">></span></span>

I have referenced telerik.web.ui and design dlls as suggested in one of the other threads, but still getting the same error.

Please help..

Thanks

how i show the rad confirm messages in server side
please help me


Thanks,
Mohamed.

I have a grid which uses grouping on the top-level table and also has a detail table. it seems that, when a group is collapsed, and then expanded, then the detail table is expanded for all items in the group. Is there a way to prevent the detail table from being expanded when the user expands a group? The detail table should only be expanded when the user clicks on the expand/collapse column for the item in the master table.

Hi,


I have rad tool bar and i have a grid which is defined under radajax panel. I want to click button from tool bar and export Grid to excel. II followed instructions on Telerik site but nothing worked. Any idea ?



Regards,

Hi,

I have a couple Grids on my page which include a "Download" GridButtonColumn that has AJAX disabled via Javascript to enable a File Download. When clicking these download buttons, the Code behind uses GetDataKeyValue to get the ID of the row:



However, this code works for all of my other functions (edit), but on the "Download" button it automatically pulls the TicketID from the  first Row of the Grid. It doesn't matter if I delete rows or change pages on the Grid, the GetDataKeyValue method always pulls the first item's ID rather than the row I've clicked.  

I have DataKeyNames="TicketID"  set in the MasterTableView of the Grid, and the Grid is populated with a LINQ/IQueryable Datasource.

I've also attempted to create a work-around for this problem by using this code instead, considering I have a column which displays the TicketID:


But to no avail, it is still grabbing the first Row's "TicketID". When constructing the GridDataItem item object, it's almost as if it's automatically grabbing the wrong Row from the very beginning. I've included an image of what exactly is happening.

Here is also the block of ASPX code of my Grid.



Oh, and here's the JavaScript I'm using to Disable AJAX on the Download Button:



Any ideas are greatly appreciated, as I've hit a brick wall with this one... Or maybe I've just got tunnel vision from staring at this for so long.

Best Regards,

Landon