I'm submitting a...

• Bug report

Current behavior

The user cannot select a filter operator if the filter input doesn't have entered data.

Expected behavior

The user should be able to pre-select a filter operator no matter if there is data entered in the filter input or not.

Minimal reproduction of the problem with instructions

1. Open this StackBlitz example
2. In the Product Name column, I click the filter operator button
3. Select "Ends with"
4. Click the filter operator button again and see that "Ends with" is not selected.
5. Type "g" in the filter text field. Grid updates but doesn't filter the data by "Ends with" filter.
6. Click the filter operator button and see that "Contains" is selected instead of "Ends with"
7. Select "Ends with" once more and Grid filters correctly

Describe the bug
When you use the filterGroupByField method, if there are more than 2 filtered items, the method returns null. If the filtered items are one or two, the method works correctly.

To Reproduce

1. Open this StackBlitz example
2. Open Browser's console(F12)
3. Click on the "ProductName" column menu and select 3 or more checkboxes
4. See the output in the console which is "null"

Expected behavior
The result returned from the filterGroupByField method should be with a structure similar to the below one, no matter how many checkboxes have been selected in the column menu.

Describe the bug
Locked and resized columns leave a small gap between the columns when scrolling is performed

To Reproduce
Steps to reproduce the behavior:
https://stackblitz.com/edit/mzxqs7-hy29kw?file=src%2Fmain.vue
lock both first and the second column from the column menu
resize the first column
scroll the columns

Curent -
A tiny gap is visible between the first and the second column

• Bug report

Current behavior

https://stackblitz.com/edit/tynxxg-vckenw?file=src/main.vue

1. With the default code in the example, when first scrolling the skip is not accurate. If the grid is scrolled extremely slowly, you can see the skip is not incremented at first. If scrolling quickly, it is very jumpy.

2. The faster you attempt to scroll, the stranger the skip behavior becomes unlike with simply removing the grouping grid prop in the same example. I've been able to get into situations it in the provided StackBlitz by scrolling down and scrolling back up quickly where it hangs on row counts and where it will scroll past the 0 indexed row causing an empty grid, then scrolling down again with either jump with a large skip number or sometimes throw an error.

3. Possibly provide more flexibility to the scenario

Expected behavior

skip and cache are working correctly

Describe the bug
When using the GridPdfExport component for exporting Grid data to a PDF file the exporting operation fails with the following error:

• The issue is replicable only when working in Vue 2 context

To Reproduce

1. Open this CodeSandbox example
2. Click the button above the grid

Expected behavior
A system dialog should appear asking where the generated file should be saved

Describe the bug
If you try to group the data in a Grid by a column that has a value of "null", the browser hangs, and an error appears in the console.

To Reproduce

1. Open this StackBlitz example
2. Group the Grid by "Unit Price" field

Expected behavior
The data should be grouped according to the values inside the UnitPrice column. A column with an empty header should appear for the group with a "null" value.

Screenshots

Workaround

Convert the "null" values to empty string with a code like this:
this.products.forEach((o) => { o.UnitPrice = o.UnitPrice === null ? '' : o.UnitPrice; });
Here is a modified example in which the above code is added to the getData method.

Describe the bug
In a scenario of Native Grid with Filter row once the filter popup is opened, the only way we can close it to select a value from the dropdown.

To Reproduce

1. Open this StackBlitz example
2. Click on the icon next to a random input in the filter row
3. Click outside the popup that appears in step 2.

Expected behavior
The popup of the filter should be automatically closed when it is blurred.

Screenshots

Describe the bug
The selectionChange & headerselectionchange events of the Native Grid component are unexpectedly triggered when filtering data in the component.

• The issue is not replicable on Chrome and Safari.

• A possible workaround for the bug is demonstrated in this StackBlitz example

To Reproduce

1. Open this StackBlitz project in Firefox
2. Enter random text in the filter input of some of the fields
3. See the following two errors in the console:

and

Expected behavior
No JS errors should appear when filtering the Grid component, no matter the browser that is used.

I'm submitting a...

• Bug report

Current behavior

When there is a custom cell template applied to a column in the Grid(Native), using the grouping functionality breaks Grid's layout

Expected behavior

The Grid's layout shouldn't be affected if we apply a custom cell template

Minimal reproduction of the problem with instructions

1. Open this StackBlitz project
2. See that the values in the ProductName column are bolded, but Grid's layout is broken
3. Remove the cell template definition on line 54 by removing the cell property.
4. Run the project again and see how if we don't apply a cell template, Grid's layout is being displayed correctly

Environment

Package versions:

2019.2.621

Browser:
All

Goodmorning Progress,

We're working quite some time with Kendo for Vue and we are slowly migrating some old 'wrapper' grids to the new native grids. We know there are some limitations in it, because not everything is developed yet, but that wasn't a show stopper for us.

Or project uses quite a lot of data (like a google sheet) and we need it to be editable. So we implemented a native grid and a custom cell render with a VueComponent. This works perfect in case of a little amount of cells, but when there are more rows and columns it's giving us some performance issues.

First we tried virtual scrolling, but this feel 'honky-bonky' and is not even workable on a mac. Then we tried column-virtualization to minimize the rendered data, but also that didn't work. Columns aren't re-rendered when visible and its conflicting with our three locked start columns (visually data overlapping, numbers go through each other, etc).

Then our options are down to zero, so i started to investigate with some performance profiling what's happening. In our case we have 70 columns and 500 rows, this results in like 35k cells. Rendering isn't the big issue, until u start interact with the grid. Our RowClick-function sets one item in the data-items to 'inEdit' like the docs also showing. When this is happening the page freezes and i start wondering why. I found out that ALL the GridCell's (with a custom CellRender) are calling the updateRender-function. So 35k functions are called in some milliseconds and causes it to freeze. It takes around 30 sec's to get it a bit reactive, but you can understand its not workable anymore.

Our wrapper grids hadn't a single problem with handling these kids of data (no paging, no weird stuff, also custom renders for every cell)

Can you please provide me an answer why this is happening? It's possible to get access to our test-environment with the grids in action to visualize my problem a bit better. 

We have a payed license on a co-worker account (berend.haan@..).

Kind regards, 
Sander

The Accessibility Support page for Kendo UI for Vue Native Components (https://www.telerik.com/kendo-vue-ui/components/accessibility/accessibility-compliance/) incorrectly implies that the Vue Native grid has keyboard navigation support. The page seems to be referring to native components as seen by the breadcrumb and the introduction text.

All of the items in the list except for the grid are linked to the Vue Native component. The "grid" item is linked to the Vue Grid Wrapper (https://www.telerik.com/kendo-vue-ui/components/grid-wrapper/keyboard-navigation/).

I believe there's already a (unplanned) feature request out there to add keyboard navigation features to the native grid, but in the meantime, please remove the grid from this page as it does not currently support full keyboard navigation.

I'm submitting a...

• Bug report

Current behavior

If the scrollable property of the Grid is set to 'null' the header of the Grid changes its background styles a column width, compared to when the property is not set.

Expected behavior

The styles of the Grid should not be changed when the scrollable property is defined.

Minimal reproduction of the problem with instructions

1. Open this StackBlitz example.
2. Remove the :scrollable="'none'" property definition from the Grid and see how it changes

Describe the bug
The @progress/kendo-vue-buttons is missing as peer to @progress/kendo-vue-grid package

If a date column has a GridColumnMenuFilter, the filter drop down closes as soon as you attempt to open the date. 

Reproduction steps:

Add a GridColumnMenuFilter to a column that is defined as a date.  Upon opening the filter and attempting to select a date, the filter immediately closes.  

This example has the problem reproduced. https://stackblitz.com/edit/zdmtjk?

Describe the bug
The layout of the column menu popup window, inside the Native Grid, is different when using version 4.x.x and version 5.x.x. of the Kendo Themes.

• The issue is replicable with all Kendo Themes

To Reproduce

1. Open this example
2. Click on the column menu of the Name column
3. Inside the column menu, click on "filter"

Expected behavior
There should be a space between the different elements in the column menu -> filter popup

Screenshots

Describe the bug
When having a scenario of Native Grid with a paging functionality, the pageChange event is being triggered when there is an interaction with the UI of the Pager.

When the user selects the number of rows per page, by choosing this value from a DropDownList, the object available in the event handler of the pageChange event has a value for its event property.

When the pageChange event is triggered by a change in the pages (1, 2, 3, etc.) the mentioned above event property has a value of undefined inside the event handler.

To Reproduce

1. Open this StackBlitz example
2. Change the number of items per page to 20.
3. Change the Grid page by using the page numbers
4. Check the browser's console

Expected behavior
The event prop should be defined no matter which element is triggering the pageChange event.

Hello Team.

I appreciate grid's reorderable function work at Nuxt3(@kendo-vue-grid: 3.14.2).

But For some reason, this function doesn't work properly. so I report a bug.

I reproduce a stackblitz code.
https://stackblitz.com/edit/nuxt-starter-gmag5m

I implemented it like this,

After fetching(=GET) column data from the server, reorder the columns using kendo grid's reorderable function and save(=POST) it on the server.

I call columnExecute function, so server refetch(=GET) column data.

at /pages/index.vue, colums ref change rightly.

at /components/grid.vue, columnList ref change rightly.

But rendered kendo grid's column doesn't change.


please check this issue. 

Sincerely,
Eunbyul.

Describe the bug
The following warning appears in the browser's console when using the Native Grid in Nuxt context:

To Reproduce

1. Open this example
2. Check the browser's console

Expected behavior
No warnings or errors should appear in the console

Describe the bug
Resizable and reorderable true does not work in nuxt
https://stackblitz.com/edit/hy923e-fmrqsf?file=package.json
Try to resize or reorder

Describe the bug
When we have a Grid that has a display: none CSS rule defined for it, switching to display: block makes the pager of the Native Grid be rendered in responsive mode as if the Grid is displayed on a small device.

Possible workaround:

• Set the pager's responsive property to false

To Reproduce

1. Open this project
2. Click on the button

Expected behavior
The Grid should appear on the screen and its pager should look like this:

while it is rendered like this: