System.ArgumentOutOfRangeException
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.

When there is at least one ColumnGroup which is not assigned to any of the columns in RadGrid, exporting to Excel throws an exception "Index was outside the bonds of the array"

RadGrid client events OnRowDropping and OnRowDropped do not fire if item is dropped onto itself.

When page scrolling is enabled and scrolling down the page, the row context menu of RadGrid rows do not open at a correct position.

Demo: Video Recording

Testing conducted in Safari 13, MacOS

Hi

Since updating to the latest release of UI for ASP.NET AJAY the RadContextMenu of my RadGrid is misaligned at the right edge of the screen. Even in your sample https://demos.telerik.com/aspnet-ajax/grid/examples/columns-rows/columns/context-menu/defaultcs.aspx when you open the context menu at the right side of the screen the context menu is nor aligned to the left (like it used to be).

Please ses the attached printscreen.

Kind regards
Felix

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

<telerik:GridTemplateColumn>
	<ItemTemplate>
		<%# Eval("Field") %>
	</ItemTemplate>
	<EditItemTemplate>
		<telerik:RadTimePicker ID="RadTimePicker1" runat="server" SelectedTime='<%# Bind("Field") %>'></telerik:RadTimePicker>
	</EditItemTemplate>
</telerik:GridTemplateColumn>

Steps to replicate the error:
Add a row and press the save button twice (before the first saving finishes, press the button again).
This will throw a "System.NullReferenceException" at "Telerik.Web.UI.GridTableView.FillDataKeys".

How to reproduce: Setup a RadGrid and configure the render mode to be Lightweight. Add group by expression with one select and one group field. Export to XLSX.

Current behavior: Html code is rendered in the Excel cell

Correct behavior: No Html code should be visible

Sample code: 

<asp:Button ID="Button1" runat="server" Text="Export" />
<telerik:RadGrid ID="RadGrid1" runat="server">
    <ExportSettings OpenInNewWindow="true" />
</telerik:RadGrid>

void RadGrid1_PdfExporting(object sender, Telerik.Web.UI.GridPdfExportingArgs e)
{
    e.RawHTML = "<a href="absolute url to pdf file">dasdasdasdas</a>";
}

protected void Button1_Click(object sender, EventArgs e)
{
    RadGrid1.MasterTableView.ExportToPdf();            
}