OnChange and OnBlur event for editors (TelerikTextBox, NumericTextBox, and others) is not fired in InCell edit mode with Tab key.
I set the GridColumn DisplayFormat="{0: yyyy-MM-dd}" and the data reflects that format. The default filter control doesn't. How can I make the control do that?
---
ADMIN EDIT
For the time being, the way to affect the filter behavior is through a custom filter template. The format for date pickers and numeric textboxes comes from the app culture settings (see more here). You may also want to Follow this idea for easier selection of a default filter operator and limiting the filter operators choices.
---
I previously raised an issue regarding the grid popup editor not linking the labels with the generated text inputs which was creating an issue with screenreaders. Since upgrading to version 7.1.0, I've seen that this issue has been fixed but in a way that breaks editor templates. Previously, the "for" attribute of the generated label was being set to the label text, but now everything is being set to a generated GUID.
This is fine for the generated fields since they can link the labels to the controls automatically (by setting the ID of the control to the GUID), but for templates, this means that we cannot link the generated label to the control since we cannot get access to the GUID in the template (as far as I know). Previously, when the "for" attribute on templates was the same as the label text, I could set the ID of the custom template control to the label text and the controls will be linked correctly.
===
ADMIN EDIT
===
For the time being, possible workarounds are:- Not using Editor Templates, so the built-in editors are properly connected to their labels.
- Using a custom popup edit form, so you can control the rendering of the whole popup form.
Hello,
The issue can be reproduced in a Grid with column virtualization enabled and Navigable set to true. Please run this REPL snippet https://blazorrepl.telerik.com/QHusmyOJ027Rp5Ok38, click on any column, the appropriate row will be selected and the corresponding table cell will be focused. Try to navigate to the right by using Right cursor key - you will not be able to navigate through the whole table, values in last columns will not be displayed and the grid seems think they are in the same cell with User Number in my particular case. When you use Left cursor key and then the Right one again you will not be able to see even these columns headers.
I attached a small video to better demonstarte the issue on my particular machine.
Very thanks.
Miroslav
Hi Telerik Support
Facing an issue with Keyboard navigation in Telerik Grid component.
When we use TAB to navigate, the grid header gets focus only for the first time. After completing one round of navigation, second time after the Toolbar buttons, if we TAB out, focus goes to the pager sections skipping the grid header part.
Pls refer the REPL sample from Telerik website:
Steps to reproduce:
1) Use ALT + W and then use TAB key to navigate
2) First focus goes to the Toolbar button (Add Product), then goes to the Grid Header and then if we TAB again focus goes to the Pager section
3) After the Pager section, if we do steps 1 and 2 again, we can see that it skips the Grid Header focus second time onwards.
<ColumnMenu>
<ColumnMenuFiltering/>
<ColumnMenuSorting/>
....
</ColumnMenu>
The issue targets a Grid with cell selection and DragToSelect feature disabled where at least one column has Visible="false". With this configuration, when using Shift + Click to select multiple cells, the result is a mismatch in the cells that should be selected, after the position where the invisible column is placed.
Video reproduction attached. Reproduction code: https://blazorrepl.telerik.com/GyFuQwPf37H8riAM19.
My Grid uses a lot of data (more than 200 000 records). I noticed that only in Firefox the export fails if the file is large - approximately 60MB.
The export of such large files works well in Chrome and Edge.
I have recently encountered an accessibility issue with the grid popup editor where the labels for the generated fields are not linked to their respective editor. It seems that the label does have a "for" attribute that is the same as the column title which I expect, but the Id of the input does not get set to the same thing. I can't see any option to make the association happen automatically.
===
ADMIN EDIT
===
A possible option for the time being is to use a custom popup edit form. You may either declare your desired custom content for the form and link the labels to their respective inputs or use the Form component with the field autogeneration feature which will automatically link the labels to the inputs.
There seems to be no System.Type that will allow a GridColumn to be specified with the 'FieldType' attribute to receive a TelerikTimePicker
typeof(DateTime) --> TelerikDateTimePicker
typeof(?) --> TelerikTimePicker
<TelerikGrid Data="@gridDataExpando" Width="100%" Sortable="false" Pageable="false" Resizable="true" ShowColumnMenu="false"
ScrollMode="@GridScrollMode.Scrollable"
Height="100%"
EditMode="@GridEditMode.Incell"
OnUpdate="@UpdateHandlerExpando"
OnEdit="@EditHandler">
<GridColumns>
@{
var firstItem = gridDataExpando.FirstOrDefault();
if (firstItem != null)
{
var dictionaryItem = firstItem as IDictionary<string, object>;
foreach (var item in dictionaryItem)
{
if (!item.Key.Contains("Id"))
{
<GridColumn Field="@(item.Key)" FieldType="@(this.GetDataType(item.Key))" Width="140px" DisplayFormat="{0:hh:mm:ss tt}">
<HeaderTemplate>
<span>@item.Key</span>
</HeaderTemplate>
</GridColumn>
}
}
}
}
</GridColumns>
</TelerikGrid>
Using the grid with OnRead event to fill data. I need to set the sortings at runtime, so I use also the OnStateInit event.
It all works fine because OnStateInit fires before OnRead and I set the sorting inside OnStateInit.
If I put an empty GridAggregates then OnStateInit fires after OnRead thus inside OnRead I don't have the sortings set.
===
ADMIN EDIT
===
As a workaround for the time being, do not include empty GridAggregates tag, only add them when you actually want to include some aggregate functions.
I am using Grid with Cell Selection enabled and DragToSelect="true". If I define a Template inside the GridColumn tag and I add a div inside that, SelectedCellsChanged event handler does not trigger if I start dragging by clicking on the div or if I drop inside that one.
Reproduction: https://blazorrepl.telerik.com/myasmnvQ46Jt7k5n50.
===
ADMIN EDIT
===
The only workaround for the time being is to disable the drag selection and let the user only select cells by clicking them. The cells will be selected even if the user clicks on the custom <div> element inside the template.
I am using a CheckBoxList filter menu and I am setting an initial filter through the OnStateInit. I noticed that when the Grid initializes and I check all the boxes, the Grid does not show any records. For reference, if no initial filter is applied and all CheckBoxes are selected, the Grid shows all the records.
Reproduction: https://blazorrepl.telerik.com/GSbbbJut14K03I2x14.
===
ADMIN EDIT
===
As a workaround for the time being, you may create a custom Filter Menu.
The Grid exits edit mode when expanding or collapsing rows in a hierarchy scenario. This only happens when OnStateChanged is set.
Test page that reproduces the behavior: https://blazorrepl.telerik.com/wIkJvdlo09hXCV8u03
On Hierarchy grids with Inline edit mode, I noticed that if a row is currently being edited and I try to expand the row to show the child grid an exception is thrown: "Error: System.InvalidOperationException: TelerikValidationComponent requires a cascading parameter of type EditContext. You can use Telerik.Blazor.Components.TelerikValidationTooltip`1[System.String] inside a EditForm or TelerikForm".
The problem stems from a validation tool inside the Grid EditorTemplate.
Feature Request
Currently, when a grid is rendered with 500 rows in a WASM application and expand/collapse action is initiated, it takes a few seconds to finish grouping and rendering.
Steps to reproduce
1. Create a grid in WASM app.
2. Add 500 rows.
3. Do not enable paging.
4. Group by any field and initiate expand/collapse.
5. All rows are re-rendered which leads to a few seconds delay.