Description

Regression introduced in version 10.0.0.

Steps To Reproduce

1. Run this example: https://blazorrepl.telerik.com/GJkCGCvE51aGglud38
2. Filter a Grid column and observe the log below the component.

Actual Behavior

The OnStateChanged event fires 4 times

Expected Behavior

The OnStateChanged event fires 2 times (see https://www.telerik.com/blazor-ui/documentation/components/grid/state#onstatechanged).

Browser

All

Last working version of Telerik UI for Blazor (if regression)

9.1.0

Similar to the WPF grid I would like the option to require the user hold shift to sort by multiple columns, otherwise the grid would sort by only a single column.

https://docs.telerik.com/devtools/wpf/controls/radgridview/sorting/multiple-column-sorting

In the case of a sorted column, NVDA is not narrating the correct column name and narrating the incorrect Roles for the column headers.

In the case of an unsorted column, NVDA is narrating the column name twice and repeating the information.

If you set a given column's Groupable/Sortable/Filterable parameter to false, it will still appear in the toolbar tools list of columns.

I want to expand a specific section within the column menu, such as the filter, column chooser, or column position section, when the menu is opened. 

Hi, How can i store and retrieve the PageSize of a Grid in the GridState? It seems that this is missing in GridState?

The arguments within the OnDrop event are incorrectly calculated when a hierarchical grid row is expanded. This is likely because the expanded detail zone is being mistaken for a data row by the drag-and-drop algorithm.

When enabling resizing and reordering for the Telerik Grid, using `MinResizableWidth` to set minimal column width will apply the constraint to the column position rather than the actual movable column. This means applying a min width of 200px to the first column will work as expected until the column is moved to another position. Now the column in question no longer has the min width applied, and the column that has moved into the first position has the 200px min width constraint. 

It appears this is due to the constraint being applied to the `data-col-index` rather than the `data-col-initialization-index`, or something to that effect.

The following example has a 200px min-width constraint applied to the "Name" first column, and no custom min-with applied to "Address" second column. Switching the columns by moving the "Name" after the "Address" will apply the constraint to the "Address" and not the "Name".

https://blazorrepl.telerik.com/QJEAcuPE41L7Uhiw44

Currently using 7.1.0 but looks to be an issue in later versions as shown by the REPL example. Tested in Firefox and Chrome.

The column position is arbitrary and the bug isn't due to the constraint being applied to the 0 column, applying the constrain to all even columns then shuffling would result in the constrain still being applied to all even columns.

There is an order to the grouping level - field1, field2 and so on - I would like that current index in that order exposed by the grouping templates so I can know in which position they are and whether/how far they are nested.

The scenario is:

• Grid popup editing
• The model class has no parameterless constructor
• The Grid is using a popup <FormTemplate>

In this case, the Grid should not try to create or clone an edit item on its own. Instead, it should rely on the returned instance from OnModelInit. However, the Grid first fires OnModelInit and then it still tries to clone or create an edit item, which causes an exception.

A possible workaround is to manage the whole edit process manually, similar to the example with ListView popup editing.

I want to change the default Grid loading animation to a pulsing loader indicator.

I would like to put my "Add new record" button there (which requires this) so that I don't have to use the toolbar - this will let me conserve vertical space.

Rebind() causes exceptions in async OnRead() as the Rebind method is synchronous.

Since verion 9, the new styling is doing something strange.

The issue is also observable on the Tererik demo site (as well as our published applications) but I have noticed its on webassembly more-so than server apps;

https://demos.telerik.com/blazor-ui/grid/adaptive

 

If I run the demo site, the new pagination style (where you can type the page you want to navigate to) will flash up for a second, then it will go back to the old style after a second or 2.

 

Would anyone know why this is happening?

 

If the GridScrollMode.Virtual is enabled for the Grid, and the NoDataTemplate exceeds the height of the Grid container, a user can infinitely scroll inside the table even when there is no data and the template is displaying.

 

===ADMIN EDIT===

A possible workaround is to apply "overflow-y: hidden;" when the NoDataTemplate is shown: REPL link.

I want to filter a Grid by DateTimeOffset? field

 

===ADMIN EDIT===

There are two possible options:

1. Use a DTO in which you have a DateTime field converted as desired by your app from the DateTimeOffset. Filtering, sorting, editing, and grouping on DateTime values are supported out-of-the-box.

REPL example that demonstrates this approach. 

2. Use the Grid Filter Template. As a filter editor, you can use the DateTimePicker component, which supports the DateTimeOffset type. 

REPL example that demonstrates this approach. 

 

 

If I group by a column, and one of the values in the column contains a forward slash ( '/'), then the value will not be grouped, the Grid ignores it.

The issue seems to occur only when LoadGroupsOnDemand is set to true.

===

ADMIN EDIT

===

A possible option for the time being is to disable the LoadGroupsOnDemand feature.

Hello,

Please consider a Grid feature that changes the component layout on mobile devices or narrow screens. The idea is to switch the column layout to a card layout or anything similar to this example: https://css-tricks.com/responsive-data-tables/

It is possible to implement a similar behavior with the Telerik Blazor Grid and MediaQuery components, but it requires reusing the column titles in the CSS code: https://blazorrepl.telerik.com/GnYPmHFR176Jg5Yg02

===

Telerik Blazor team: Everyone who is interested in this feature, please vote for it to help us prioritize. Also, share your opinion about which Grid features you strictly need in the "mobile" layout and which ones you are ready to sacrifice. Some features don't make sense in a card / listview layout anyway, but still, the mobile-friendly Grid may require completely different HTML markup and UX, so some features may need to be completely revamped.

I would like to click on the grouping row and expand the Group. 

The Grid performance worsens progressively with each subsequent edit operation. Please optimize that.

Test page: https://blazorrepl.telerik.com/mJuHFNbb17FpJu9b54

Click on a Price or Quantity cell to start edit mode and tab repetitively to observe the degradation.