Last Updated: 10 Jul 2019 14:09 by ADMIN
Hidden columns are shown on resize when the static headers and frozen column are used.


Possible workarounds:

- Hide the column with Visible="False", instead of Display="False"

- Hide the column on the client-side:

    function gridCreated(sender, args) {
        var masterTableView = sender.get_masterTableView();
        columnIndex = masterTableView.getColumnByUniqueName("ShipName").get_element().cellIndex;
        setTimeout(function () {
        }, 2);

Steps to reproduse:

            <telerik:RadGrid RenderMode="Lightweight" HeaderStyle-Width="200px"
                    <Scrolling AllowScroll="True" UseStaticHeaders="true" FrozenColumnsCount="2"></Scrolling>
                <MasterTableView AutoGenerateColumns="false">
                        <telerik:GridBoundColumn DataField="SongID" HeaderText="SongID" FilterControlWidth="50px" HeaderStyle-Width="50px">
                        <telerik:GridBoundColumn DataField="SongTitle" HeaderText="Song Title" FilterControlWidth="200px"></telerik:GridBoundColumn>
                        <telerik:GridBoundColumn DataField="CollectionName" HeaderText="Collection Name" FilterControlWidth="200px"></telerik:GridBoundColumn>
                        <telerik:GridBoundColumn FilterControlWidth="50px" DataField="VersionID" HeaderText="VersionID" Display="false"></telerik:GridBoundColumn>

Code Behind:

    protected void RadGrid1_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
        (sender as RadGrid).DataSource = GetData();

    private DataTable GetData()
        DataTable dt = new DataTable();

        for (int i = 0; i < 20; i++)
            dt.Rows.Add(i, i + 1, i + 2, i + 3);

        return dt;

Last Updated: 28 Jun 2019 08:52 by ADMIN

Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index

This error seems to happen if there is a GridTemplateColumn that has the Exportable property set to False.

Last Updated: 12 Jun 2019 15:42 by ADMIN
Such an exposed method, which returns the value from the ExportOutput, would be useful to further enhance the exporting capabilities of the RadGrid control. A very practical example would be to export numerous RadGrid controls into one Excel file.
Last Updated: 10 Apr 2019 15:29 by ADMIN
Created by: Richa Chauhan
Comments: 2
Category: Grid
Type: Bug Report
Keyboard navigation does not work in Firefox 65.0.1

While attempting to implement Keyboard Navigation for one of our RadGrid controls, we discovered that this navigation (Arrow Up/Down and Page Up/Down) did not work correctly in Firefox (though it did within IE, Edge, and Chrome). We also tested the Firefox Keyboard Navigation within the Telerik Grid Demo Site, and experienced the same behavior. 

Issue can also be observed with the Grid - Keyboard Support demo using Firefox 65.0.1

Do you know how to resolve this issue, or of any workaround?

Thank you,

Last Updated: 05 Nov 2018 11:24 by ADMIN
As a temporary workaround you can use Template column with a DataField set.
Last Updated: 04 Oct 2018 08:04 by Andy Green
Alternating Row style of RadGrid is not applied when using Bootstrap skin.

Steps to reproduce:
For all other Skins these approaches work:
        div.RadGrid tr.rgAltRow {
            background-color: aqua;

 <AlternatingItemStyle BackColor="Aqua" />

The reason probably is because there is >td directive built-in, which needs to be overridden manually in order for the styling to take effect (this works):
        div.RadGrid tr.rgAltRow > td {
            background-color: aqua;

A possible workaround for this issue is available in the following forum post:
Last Updated: 13 Sep 2018 08:43 by Attila Antal
RadGrid GridDateTimeColumnEditor is unable to process data of type TimeSpan if PickerType is set to TimePicker.

As a workaround, a GridTemplateColumn can be used with a TimePicker inside EditTemplate

		<%# Eval("Field") %>
		<telerik:RadTimePicker ID="RadTimePicker1" runat="server" SelectedTime='<%# Eval("Field") %>'></telerik:RadTimePicker>
Last Updated: 11 Sep 2018 17:05 by Beth

Currently JAWS user cannot use the arrow keys to select a filter operator. Please enable arrow keys support to filter context menu for JAWS user. 
Refer Telerik support ticket - 1081707 for more information.

Last Updated: 14 Jun 2018 11:20 by ADMIN
Due to browser restrictions, the print behavior is changed and works identically to the one of IE - a new tab/dialog with the grid is opened whose print command is launched. You can observe the behavior in IE at 
Last Updated: 31 May 2018 13:50 by ADMIN

A fix in the codebase of the grid will take time, effort and will have to wait in the queue, which is why this is the official solution.
Last Updated: 28 May 2018 13:45 by ADMIN
Repro steps:
- go to the RadClientDataSource binding demo:
- filter a column so there is no data in the grid
- remove the filter
Actual: the pager is gone
Expected: the pager is there

SOLUTION: see the following KB article:
You can show the pager when the filter command is executed:

function OnCommand(sender, args) {
    if (args.get_commandName() == "Filter") {

A fix in the codebase of the grid will take time, effort and will have to wait in the queue, which is why this is the official solution.
Last Updated: 18 Sep 2017 09:29 by Rick
Created by: Antonio Stoilkov
Comments: 1
Category: Grid
Type: Feature Request
Add support for custom paging in the RadGrid Virtualization functionality. The idea is to enable the retrieval of part of the data from the source of data instead of retrieving all of the data every time.

Without this feature the optimization technique is to cache the data source.

Example is available at
Last Updated: 25 Aug 2017 06:10 by Arvind
Last Updated: 10 May 2017 09:58 by Ray
Misalignment issue in RadGrid with static headers and simple control's configuration appears in IE.
Last Updated: 21 Apr 2017 14:11 by ADMIN
The navigation icons are not readable in mobile Grid in MetroTouch.


Steps to reproduce:
1. Open this demo:

Result: the Navigation icons are white
Last Updated: 10 Mar 2017 09:18 by ADMIN
Currently Linq2Sql expressions are supported. But as Entity Framework is "de facto" the standard for data access in .NET, it would be great, if you also support ESQL expressions.

This is necessary for example when data binding to entities in OnNeedDataSource event and filter expressions from RadGrid should be used for adapting query.

Last Updated: 01 Dec 2016 15:00 by ADMIN
Created by: Kostadin
Comments: 0
Category: Grid
Type: Bug Report

Last Updated: 28 Nov 2016 15:07 by Robert
Last Updated: 30 Sep 2016 10:54 by ADMIN
Created by: Peter Milchev
Comments: 0
Category: Grid
Type: Bug Report

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