Time independent filtering (EqualTo problem) is currently not supported with client-side binding in RadGrid, using a WCF with odata  binding.
When i use the filter in a date column, the filter does not return records, it is because is passing date AND TIME to the OData service. 
I have open a support ticket #932463, but Daniel says it is a new feature and not a bug.
So i request it.

The client-side KeyPress event is falling out of favor and the KeyDown even is being used more. Please implement an OnKeyDown event for the Grid, just like you currently have an OnKeyPress event

When the RenderMode of RadGrid is set to Mobile and UniqueName is different from the DataField then trying to Ungroup an item, it throws an exception: Object reference not set to an instance of an object

I have a RadGrid with around 150 columns and a few hundred rows. Currently, I'm looping over them and setting their widths with the resizeColumn function. Unfortunately, it's triggering a recalculation of the layout every time I call this function, so the total page load time can be in the minutes.

Oddly, much of the time was spent on the line:
e.style.width=e.offsetWidth-d+"px";

Chrome's developer tools helpfully pointed me at Forced Reflow. Apparently, when a width is set, initially no extra work is done. When another width is requested, the previous width may have changed it, so the whole layout gets recalculated.

The feature I'd like to request is a function to set column widths in bulk (accepting anything like an array or a dictionary would be fine) that doesn't trigger this recalculation mid-function.

Grid in BatchEdit mode must be one of the most useful features in some serious industry-level web applications. It comes quite naturally, that the data in the grid must be often extensively validated, and in many cases the client side validation is simply not enough. In our case, we had to use BatchEditing mode and we had to validate user-entered values serverside (due to complex rules, external data to validation against in real time and safety/security of the validation itself). 

Documentation states that BatchEdit does not support ServerSide validation. This makes BatchEdit mode mostly useless for some serious use, which is a pitty. But how much is needed to do so? The only thing we need is, when processing RadGrid_BatchEditCommand, to send the unsaved changes back to the client (overwrite the old values which would come from the database via NeedDataSource) and mark the changed cells as "EDITED" or "CHANGED", because:

 

a. We have to make sure, that the unsaved rows from the session variable will always come up, next time the user hits the Save changes button, in the BatchEditCommand in Hashtable newValues = command.NewValues; This is because only rows, which RadGrid understand as changed by user-client side, will come up in the newValues HashTable. In case that the user changed, in the first server-side roundtrip, rows 1 and 2, rows 1 and 2 would be saved to the session variable and they would be presented to the user, but in the second round user would not change rows 1 and 2 but change only row 3, it would be only row 3 which would come up in RadGrid1_BatchEditCommand the newValues Hashtable, and we would never get previous, still unsaved, changes

b. in case the user goes to the next page of the grid, using paging arrows in the grid, the grid normally warns about unsaved changes and prevents user from going to the next page, if there are any unsaved changes. If our changed rows from the session are not marked as EDITED, the grid would never ask this and would proceed to the next page, losing users changes.

We were fighting to make this work via some session variables, etc, but then Doncho from Telerik support sent us this simple solution. I think many would be happy if you could add it to the next release, so it is supported out of the box. Attaching files from Doncho, which give an ide to the solution

Thank you.

 

See online demo:

https://demos.telerik.com/aspnet-ajax/grid/examples/data-editing/batch-editing/defaultcs.aspx

 

Steps to reproduce (seen in Chrome and Edge):

- Click the "x" on the 2nd to last record on page 1 to mark it for deletion  (Click "OK" at the prompt)

- Click "Add new record" button

 

Observe:

 - the record marked for deletion moves up by one record (but fortunately it appears the correct record will actually get deleted upon Saving)

 - a blank new record is creating correctly

 

If you repeat this procedure but choose a different record for deletion you can see it is functioning correctly.

 

I am seeing the same behaviour in my own project.

For Bug Report :

Note: We are using MM/dd/yyyy as Internal Date format to prevent issue while inserting or updating value.

Steps to reproduce:
When we use dd-MM-yyyy and yyyy-dd-MM Date DisplayFformat for RadDatePicker/RadDateTimePicker control as well as view mode in Radgrid Batch Edit mode it's render behaviour is inconsistent
1. When dd is less than or equal to 12 then while rendering in edit mode Month and Date is interchanged
2. When dd is greather than 12 then while rendering in edit mode Month and Date is rendered correctly.

Currently, the "GridButtonColumn" and "GridEditCommandColumn" columns render only ASP Buttons such as ImageButton, PushButton, LinkButton.

We would like to have the option to Choose Telerik Buttons such as RadButton, RadImageButton as ButtonType for the Columns.

Regardless of which item is being clicked on, the e.Item will always be the first from the list.

The date pickers default to the year 1999 and do not accept inputs, so you cannot filter GridDateTimeColumn instances through the header context menu or the excel-like filtering. The standard filter item and range filter can still be used instead of context menus, but they are not available with excel-like filtering.

You would get something like

(([createddate] >= '01/08/2017,00:00:00') AND ([createddate] <= '14/08/2017,23:59:59'))

while you should get something like

(([createddate] >= '01/08/2017 00:00:00') AND ([createddate] <= '14/08/2017 23:59:59'))

so that the SQL syntax is valid.

RadGrid, does not send the FilterExpression to the SqlDataSource, however. It executes the SELECT statement and then filters the resulting data on its own. This works fine.

If you will be performing operations yourself, you could use a string operation before passing the filter expression. For example:

protected void RadGrid1_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
{
	if (!string.IsNullOrEmpty(this.RadGrid1.MasterTableView.FilterExpression))
	{
		if (this.RadGrid1.MasterTableView.FilterExpression.Contains("createddate"))
		{
			this.RadGrid1.MasterTableView.FilterExpression = this.RadGrid1.MasterTableView.FilterExpression.Replace(",", " ");
		}
		DataView dv =GetData("select * from [myTable] where ", this.RadGrid1.MasterTableView.FilterExpression);
                //where you would need to have something like (([createddate] >= '01/08/2017 00:00:00') AND ([createddate] <= '14/08/2017 23:59:59'))
		this.RadGrid1.DataSource = dv;
	}
}

Note that implementing such a change may break existing code that relies on the current syntax that contains the comma.

The FooterAggregateFormatString functionality of the Grid does not affect the Aggregates values format in a client-bound Grid.

Code to reproduce:
            <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server" ClientDataSourceID="RadClientDataSource1" AllowPaging="true" AllowSorting="true" AllowFilteringByColumn="true" ShowFooter="true">
                <MasterTableView ClientDataKeyNames="CustomerID" EditMode="Batch" CommandItemDisplay="Top" BatchEditingSettings-HighlightDeletedRows="true">
                    <Columns>
                        <telerik:GridBoundColumn DataField="CustomerID" HeaderText="Customer ID"  Aggregate="Count" FooterAggregateFormatString="No currency sign here: {0:C}">
                        </telerik:GridBoundColumn>
                        <telerik:GridBoundColumn DataField="CompanyName" HeaderText="Company Name" ColumnEditorID="GridTextBoxEditor">
                        </telerik:GridBoundColumn>
                        <telerik:GridBoundColumn DataField="ContactName" HeaderText="Contact Name" ColumnEditorID="GridTextBoxEditor">
                        </telerik:GridBoundColumn>
                        <telerik:GridBoundColumn DataField="ContactTitle" HeaderText="Contact Title" ColumnEditorID="GridTextBoxEditor">
                        </telerik:GridBoundColumn>
                        <telerik:GridClientDeleteColumn HeaderText="Delete">
                            <HeaderStyle Width="70px" />
                        </telerik:GridClientDeleteColumn>
                    </Columns>
                </MasterTableView>
                <ClientSettings>
                    <ClientEvents OnUserAction="UserAction" />
                </ClientSettings>
            </telerik:RadGrid>

Please add a setting for the Grid in batch edit mode to enable prompting to save changes.  The prompt should occur when navigating away from the page, when paging, when filtering, when refreshing, or any other action that would cause loss of changes without a save.
For details on how I implemented this manually, please see ticket 933229.

Set up to reproduce:
Code-behind:

At the moment, RTL support for excel like filtering is not implemented. It displays the following issues

    - menu position is wrong (tends to show up on the column to the left)
    - controls alignment inside the menu is wrong (ltr)

You can find attached a sample and screenshots with the current behavior

There is some undesirable behavior that has been discovered by our users regarding APS.Net RadGrid when filtering with the checkbox list.  I have seen that the issue also happens on the Telerik Demo page found here and will use it as the example: https://demos.telerik.com/aspnet-ajax/grid/examples/functionality/filtering/basic-filtering/defaultcs.aspx

If you go to the last demo on that page (Filtering with Client-Side Binding) select the filter for Country.  When the checkbox items appear, click on an item, however do not click on the checkbox.  What happens is the dropdown closes and nothing happens.  The demo however is for cliet side binding which is does not postback to the server.  Our control is handled on the server-side so when this happens a request is sent and the user is presented with the loading circle which makes the user think something is actually happening, yet it is not.

I suggest that the behavior of clicking on an item, outside of the checkbox, checks the box and keeps the list open.

At the least, there should be no request that is sent to the server as the box was not actually checked with the current behavior.

I have attached an image with a red 'X' on where a user may click to reproduce this behavior.

When Exce-Like filtering is enabled for the Grid, the Accessibility Validation Tools detect errors such as "A button is empty or has no value" and "Missing form label".

I have a hierarchical grid displaying work orders and under each work order its tasks. I 'am allowing the user to resize columns, reorder columns and use the context menu column picker on both levels of the grid (work orders and tasks). I want to make it so when the user does any action on a child task grid (resize column, reorder, show/hide column) the action will be synchronized to all other child tables

The horizontal line just above the group header: