Hi, I have a page that contains a RadComboBox that let's the user select a group name and a RadGrid that displays the members of the selected group.  I have added a setting to the RadAjaxManager to make the combo box update the grid.  That part seems to be working as the loading panel is shown over the grid each time I pick a different value from the combo box.  The problem is that the data in the grid doesn't change, unless I click the refresh button on the grid.

I set a breakpoint in my NeedDataSource event handler and I can see that the AJAX request occurs, but the handler is not invoked.  Is this the expected behavior?  If so, what is the correct way to achieve my desired outcome?

<telerik:RadAjaxManager ID="RadAjaxManager" runat="server">
   <AjaxSettings>
     <telerik:AjaxSetting AjaxControlID="RadComboBoxCustomGroups2">
       <UpdatedControls>
         <telerik:AjaxUpdatedControl ControlID="RadGridGroupMembers" LoadingPanelID="RadAjaxLoadingPanel" />
       </UpdatedControls>
     </telerik:AjaxSetting>
  </AjaxSettings>
</telerik:RadAjaxManager>

<asp:Panel ID="CustomizeCustomGroupPanel" runat="server" GroupingText="Customize Custom Group" Width="635px">
  <div>
    <div class="InlineTable">
      <telerik:RadComboBox ID="RadComboBoxCustomGroups2" runat="server"
                           DataSourceID="SqlDataSourceCustomGroups" DataTextField="Group_Name"
                           DataValueField="Group_Id" CssClass="radcombobox" AutoPostBack="True" />
    </div>
  </div>
  <br />
  <div>
    <div>
      <telerik:RadGrid ID="RadGridGroupMembers" runat="server" CssClass="RadGrid_site" ClientSettings-Selecting-AllowRowSelect="true"
                       AutoGenerateColumns="false" AllowAutomaticInserts="True" AllowAutomaticUpdates="True" AllowAutomaticDeletes="True" OnNeedDataSource="RadGridGroupMembers_NeedDataSource"
                       OnUpdateCommand="RadGridGroupMembers_UpdateCommand" OnInsertCommand="RadGridGroupMembers_InsertCommand">
        <MasterTableView CommandItemDisplay="Top" EditMode="InPlace" DataKeyNames="Branch_Id">
          <Columns>
            <telerik:GridEditCommandColumn />
            <telerik:GridBoundColumn DataField="Branch_Id" HeaderText="Branch ID" UniqueName="Branch_Id" ReadOnly="true" Display="false">
            </telerik:GridBoundColumn>
            <telerik:GridTemplateColumn HeaderText="Branch Name" UniqueName="Branch_Name">
              <EditItemTemplate>
                <asp:DropDownList runat="server" DataValueField="Branch_Name" DataSourceId="SqlDataSourceCustomGroupBranchesSource">
                </asp:DropDownList>
              </EditItemTemplate>
              <ItemTemplate>
                <asp:Label runat="server" ReadOnly="true" Text='<%# Eval("Branch_Name") %>'>
                </asp:Label>
              </ItemTemplate>
            </telerik:GridTemplateColumn>
            <telerik:GridDateTimeColumn DataField="Expiration" HeaderText="Expiration" UniqueName="Expiration" ReadOnly="false">
            </telerik:GridDateTimeColumn>
          </Columns>
        </MasterTableView>
      </telerik:RadGrid>
    </div>
  </div>
</asp:Panel>

I have a grid with a ClientSelectedItem column and an item template column with a list in it. When the page loads the ClientSelectedItem is disabled. I want to enable it client side when a value is selected in the dropdown, or change it back to disabled if they change the selection in the dropdown back to nothing. Here's the column section of the grid.

Thanks

Rodney

Hello,

I know there is an example how to show and hide the loading panel over one single page-element at the documentation. But I wonder if it is possible to show and hide the loading panel over multiple elements of the page, e.g. over a toolbar at the top and a grid at the bottom of the page.

Thanks in advance.

Kind regards

Felix

Hello,

I saw many posts with issues on filters, but none of them looks similar to my issue.
The classic filter works perfectly but the Checklist filter doesn't. If I try Combined, the classic functionnality works and the checklist doesn't.
Please note that I tried to change the binding way for my grid (using the NeedDataSource event), but it doesn't change anything. The classic filter is still working while the checklist filter still doesn't.

Here is some part (that I think pertinent) of my code. I generate everything from code behind in the Page_Load method:

The FilterCheckListItemsRequested is working and I have, for each columns, 1 checkbox for each different values inside. Notice however how I had to make a Regex on the SelectCommand as I don't know which grid I'm in inside this event. (If someone has a better way ?).

Anyway, regarding the checklist filter, when I check a checkbox and click on "Apply", a postback is done and the Grid_ItemCommand event is raised. However it looks like the "filter value" is empty.

Does someone know how to get the values of the selected checkbox ?

Or what did I do wrong here ?

Thank you.
Regards,
Guilhem

Hi

AppointmentInserting function, i am showing one menu and it is working correct but if the click out side Insert it should hide the menu can you please help how i can achieve this.

Panic - tree has lost its integrity at tc4

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Hi Telerik Team,

I have encountered a problem while using rad combobox in asp wizard where my combobox could not function, i'm using the 2016 telerik dll.

It can only function when using rendermode= native, is there any other solution beside using rendermode = native?

Before this i'm using older version of telerik dll which does not cause this problem, can you please share with us the solution regarding this?

Your response are highly appreciated. 

I am new to Telerik controls. I am using the Telerik RadGrid control, using another page in a project as reference/template.

I am able to assign a data source to the radgrid, but when the page is rendered nothing else is displayed.

Here is my grid definition

<div>
    <asp:HiddenField runat="server" ID="hfEventID" />
    <asp:HiddenField runat="server" ID="hfCompanyID" />
    <asp:HiddenField runat="server" ID="hfBoothNumber" />
    <telerik:RadGrid runat="server" ID="HelpRequestsGrid" OnNeedDataSource="HelpRequestsGrid_NeedDataSource" AutoGenerateColumns="true"
        AllowSorting="true" AllowPaging="true" PageSize="25" ShowHeader="true">
        <ClientSettings EnablePostBackOnRowClick="false" Resizing-AllowColumnResize="true" Resizing-AllowResizeToFit="true" Resizing-ShowRowIndicatorColumn="true">
            <Selecting AllowRowSelect="true" EnableDragToSelectRows="true" />
            <Scrolling AllowScroll="True" UseStaticHeaders="true" />
        </ClientSettings>
        <PagerStyle Mode="NumericPages"></PagerStyle>
        <ClientSettings>
            <Resizing AllowColumnResize="true" AllowResizeToFit="true" AllowRowResize="true" ResizeGridOnColumnResize="true"/>
        </ClientSettings>          
        <MasterTableView Width="100%" ClientDataKeyNames="Id" DataKeyNames="Id" AllowMultiColumnSorting="True" 
            ShowHeadersWhenNoRecords="true" Name="Master" NoMasterRecordsText="No help requests found.">
            <NoRecordsTemplate>
                No help requests found.
            </NoRecordsTemplate>
        </MasterTableView>
    </telerik:RadGrid>
</div>

And in my codebehind here is where I set the data source

        protected void HelpRequestsGrid_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
        {
            if (CompanyID > 0 && EventID > 0)
            {
                HelpRequestsGrid.DataSource = Service.GetHelpRequest(EventID, CompanyID);
            }
        }

When I step through the code the data source gets set but come render nothing is displayed. What am I missing?

I've got a radgrid with a column containing a checkbox. when i check the checkbox, I want to select a given item in a drop down list. below is what I've figured out thus far but can't quite figure out how to check the checkbox inside the grid.


<telerik:RadGrid ID="rgClientSites" runat="server" AutoGenerateColumns="False"  AllowMultiRowEdit="true" GridLines="None" Skin="Windows7">
        <MasterTableView>
            <Columns>
            </Columns>
        </MasterTableView>
        <ClientSettings>
            <ClientEvents OnUserAction="onClick"/>
        </ClientSettings>
</telerik:RadGrid>


function onClick(sender, eventArgs) {
        var grid = $find("<%= rgClientSites.ClientID %>");
        var masterTable = grid.get_masterTableView();
        var gridCheckItemLCRA = masterTable.get_dataItems()[0].findElement("2"); //contains a checkbox

var dropdownlist = $find("<%= ddlD.ClientID %>");
        var item = dropdownlist.findItemByValue("3");

        if (gridCheckItemLCRA.checked) {
   item.select();
        }
        else {
   item.unselect();
        }
    }

Nothing happens when I check the checkbox - how do I attach an event to an item in a cell?