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?

Hi,
is there a way to fire the FileUploaded server-side event after using drag and drop?

I have to save the file to a given folder and I would like to use the SaveAs.

Thaks!

Hello,

I've been using client-side binding for several radgrids on my page. I have a need to clear all of their datasources simultaneously at some points. I want to be elegant and loop through all the grids instead of explicitly clearing them line by line.

I want to do something like this:

 And not like this:

I have a grid that I open up with all lines editable.  I am trying to strip the first 10 characters off of the text in the ItemDataBound event. I have version 2016.3.1027.40. 

protected void RadGrid1_ItemDataBound(object sender, GridItemEventArgs e)
{
    if (e.Item is GridEditableItem)
{
GridEditableItem editableItem = e.Item as GridEditableItem;
//string s = "This Works and is longer than 10 characters";
//if (s.Length > 10)
//{
// s = s.Substring(10);
//}
//editableItem["MasterLineItem"].Text = s;

if (editableItem["MasterLineItem"].Text.Length > 10)
{
editableItem["MasterLineItem"].ToolTip = (editableItem["MasterLineItem"].Text).Substring(10);  //THIS DOES NOT WORK
                }
}
}

Thanks

I have added some client script to a dropdown that automatically highlights and checks an item when pressing enter and also appends a comma after the text. The problem is that when I press enter the dropdown still remains filtered. How can I reset the dropdown to show all the items.

Here is the problem as a gif:

Error

When I press enter Argentina gets selected, the comma is appended but the dropdown list isn't reset to show all the items. How do I do this? Any other suggestions to how can I append the comma automatically without using any hacks are also welcome.

Code:

I have been getting reports of an odd problem for a few months now - where some of our grids seem to be acting up.  I am not sure if it was a change in this most recent release or the one before that - but something has changed.  Hoping you guys can help

Here is the scenario:

 - We have RadGrids inside RadWindow / ContentTemplate areas on a screen.

 - These grids use GridTemplateColumns with various Rad controls inside each column - e.g. RadCombobox and RadNumericTextbox

 - On page load we bind data to these grids (along with other things on the main screen)

 - On the OnItemDataBound event of the RadGrid - we find the controls in each column, set their values if needed - and for clientside processing we set attributes on some controls to reference other controls on the same line.  For example, if the first column is a RadCombobox with two options, and the next column is a RadNumericTextbox that will display a default value when the value of the RadCombobox changes - then we get the ClientID of the RadCombobox and save it as an attribute on the RadCombobox

 - Following this example - we wire up the OnClientSelectedIndexChanged of the RadCombobox - and handle the setting of the default value for the RadNumericTextbox from javascript - to make it quick and excel like... the user just tabs through the fields - and this event does something like this:

         var myRadNumeric = $find(sender.get_attributes().getAttribute('myRadNumeric ')); 

         myRadNumeric.set_value(defaultValue);

 - The idea is to have the grid act more like Excel - so the user can just tab through and change data in each control

And here is the problem:

In the past this has always worked - AND still does - UNLESS the RadGrid is in a RadWindow/ContentTemplate.  Oddly in this scenario the ClientIDs of the controls in the GridTemplateColumns that we read and saved from the RadGrids OnItemDataBound event CHANGES once the screen is rendered...  so javascript cannot $find it...  

We have found we can fix this by making a server call back after displaying the RadWindow (from javascript radopen())  - doing a Rebind() on the grid in question - at that point all ClientIDs are correct on both client and server...

I hope you followed that - it is a bit elaborate of a scenario.  I believe we picked up this method of handing Excel like interactions with the RadGrid from an older Forum thread or suggestion - but we are not clear if the behavior we are seeing is 

Temp files are not getting cleared from the App_Data folder while i'm using RADAsyncUpload control.  I'm using telerik dll verison is 2015.1.310.40 and .Net framework is 4.6.2 with Visual Studio 2015. 
Below is the .aspx file code
<telerik:RadAsyncUpload runat="server" ID="AsyncUpload1" HideFileInput="true" MultipleFileSelection="Automatic"
                                            AllowedFileExtensions=".tif,.tiff,.pdf" TemporaryFileExpiration="05:00:00">
Below is the C# code for reading the image bytes from memory stream by using telerik UploadedFile.
Byte[] byt= null;
foreach (UploadedFile file in AsyncUpload1.UploadedFiles)
{
    using (MemoryStream ms = new MemoryStream())
    {
                file.InputStream.CopyTo(ms);
                 byt = ms.ToArray();
    }
}