Steps to reproduce:
1.Create a Telerik Grid with SelectionMode=@GridSelectionMode.Multiple and a GridCheckboxColumn to select/unselect the rows. 
Also, bind the selected items to an IEnumerable collection and display the selected items in a <ul>
2.Click on Row1's checkbox - It selects the row, but not checking the checkbox
3.Click on it again- Now it unselects the row, but the checkbox is checked.
4.Click on the SelectAll checkbox in the grid header - It selects all rows, row checkboxes are checked, but the SelectAll checkbox in the grid header remains unchecked.
5.Click on the SelectAll checkbox again - All rows remain selected, row checkboxes remain checked, The SelectAll checkbox is now checked.
6.Click on the SelectAll checkbox again- All rows are unselected, row checkboxes are unchecked, The selectAll checkbox remains checked.

Another issue is, corresponding row checkbox remains checked on moving to next page eventhough the row is not selected. 
For eg,
1. a grid of 20 rows displays 10 items per page; Row 2 is selected and checkbox is checked
2. Move to page 2 - Row 12 checkbox is checked (but row 12 is not selected)

Please note that this discrepancy is only when using a checkbox column, otherwise the grid selection using Ctrl + Click works as expected.

Attached Screenshot of one of the issues

On clicking Row 2 checkbox again, result below

Hello,

I want to have the TelerikGrid's "Add" command display a popup for the new record's details, in the same way that the "Edit" functionality does. However with:

        <TelerikGrid EditMode="popup">
            <TelerikGridToolBar>
                <TelerikGridCommandButton Command="Add" Icon="add">Add</TelerikGridCommandButton>

When I click "Add", the new blank row is shown within the grid identical to EditMode="inline", not as a popup. Is the "Add" functionality meant to work in popup mode?

Reproducible below, expected results is that after editing the decimal field you'll get the data under the grid. Actual: either it does not get updated, or the value is always 0.

Reproducible

@using Telerik.Blazor
@using Telerik.Blazor.Components.Grid

<TelerikGrid Data=@GridData
             SelectionMode="GridSelectionMode.Multiple"
             @bind-SelectedItems="SelectedItems"
             Pageable="true"
             Height="400px">
    <TelerikGridToolBar>
        <TelerikGridCommandButton Command="MyDelete" OnClick="DeleteSelectedAsync"
                                         Enabled=@(SelectedItems?.Count() > 0) Icon="delete">Delete</TelerikGridCommandButton>
        <TelerikGridCommandButton Enabled="false" OnClick="DeleteSelectedAsync">I must always be disabled</TelerikGridCommandButton>
</TelerikGridToolBar>
    <TelerikGridColumns>
        <TelerikGridCheckboxColumn />
        <TelerikGridColumn Field=@nameof(Employee.Name) />
        <TelerikGridColumn Field=@nameof(Employee.Team) Title="Team" />
    </TelerikGridColumns>
</TelerikGrid>

@result

@if (SelectedItems != null)
{
    <ul>
        @foreach (Employee employee in SelectedItems)
        {
            <li>
                @employee.Name
            </li>
        }
    </ul>
}

@code {
    void DeleteSelectedAsync()
    {
        result = $"On {DateTime.Now} there are {SelectedItems?.Count()} items selected";
    }
    string result;

    public List<Employee> GridData { get; set; }
    public IEnumerable<Employee> SelectedItems { get; set; }

    protected override void OnInitialized()
    {
        GridData = new List<Employee>();
        for (int i = 0; i < 15; i++)
        {
            GridData.Add(new Employee()
            {
                EmployeeId = i,
                Name = "Employee " + i.ToString(),
                Team = "Team " + i % 3
            });
        }

        // select Employee with 3 through 5
        SelectedItems = GridData.Skip(2).Take(3).ToList();
    }

    public class Employee
    {
        public int EmployeeId { get; set; }
        public string Name { get; set; }
        public string Team { get; set; }
    }
}

Telerik Blazor version 1.5.0 Trial

Steps to reproduce:

1. Open a page with a grid in incell edit mode, e.g. https://demos.telerik.com/blazor-ui/grid/editing-incell
2. Put the cursor in the Name field of the first row and edit the just the Name field, do not click out of the cell or cause it to lose focus, do not edit any other cells first
3. Press the Add button
4. The grid will update the dataset and the edit you made is shown in the grid
5. Press the Add button
6. Enter the all of the data for the row, but do not press the row's 'Update' button
7. Press the Add button again
8. The new data you added is lost

This behaviour is inconsistent as the user is required to press the Update button to save a new row, but not to save changes for an existing row.  Can the grid be made to retain the new row when the Add button is pressed (or can we have that option)?

I think the base issue here is that the new row isn't added automatically when the cell/row loses focus.  The same issue therefore occurs if you press one of the page buttons at the bottom of the grid at step 3 instead.

Hi,

I cant see what it is that's causing this error. evertime i run my app, i get the follwoing error below:

An unhandled exception occurred while processing the request.

Microsoft.AspNetCore.Components.Reflection.ComponentProperties.ThrowForUnknownIncomingParameterName(Type targetType, string parameterName

My Code:

@page "/Table"

@inject IPurchaseOrderRepository purchaseOrderRepository
@using Telerik.Blazor.Components.Grid
    <h3>Table</h3>

<TelerikGrid Data=@auditEventTypeDTOs>
    <TelerikGridColumn Field="AuditEventName">

    </TelerikGridColumn>
</TelerikGrid>


@code{



    public IEnumerable<AuditEventTypeDTO> auditEventTypeDTOs { get; set; }

    protected override async Task OnInitializedAsync()
    {
        auditEventTypeDTOs = await purchaseOrderRepository.GetAllAuditEventTypes();
    }

}

The IEnumerable object 'auditEventTypeDTOs' is getting the data from the repository and i've made sure that i don't have any component with the same name within Telerik.blazor namespace.

Do let me know if you need me me to supply more information.

many thanks in advance

George.

If we enable grouping on a grid which has `FilterMode="Telerik.Blazor.FilterMode.FilterRow"` then we can no longer successfully get focus into any of the filter row edit controls.

Clicking on filter text input box (I think you need to do it a few times) causes a js error and does not put the text input focus into the filter text input.

JS exception is:

telerik-blazor.js:35 Uncaught TypeError: Cannot read property 'getAttribute' of null

When there are wide columns that produce a horizontal scrollbar, scrolling horizontally does not scroll the headers. It must.

WORKAROUND (see also the rules for the containing div that provides the scroll):

REPRODUCIBLE:

Hello there,

I am looking for the ability to display hierarchical data in the grid control similar to that available in the asp.net core grid: https://demos.telerik.com/aspnet-core/grid/hierarchy

Thanks!

Dear Telerik,

I'd like to post a new feature request- > A checkbox column.
Where it is possible to select multiple rows.

Regards,

Gert

When you change the data source of the grid, it must re-render the data again.

For example, when you use a custom edit form, you add/edit the data with your own code and not through the grid. This is useful, for example, when you only want to show a few columns in the grid, but the model has many more editable fields. Or, when you want a customized layout/behavior of the edit form.

Minimum repro:

Repro steps:

1. Go to https://demos.telerik.com/blazor-ui/grid/editing-inline
2. Click Add
3. Enter some data in all editable fields
4. Click Update
5. Go to the last page

Actual: The "Name" field is blank

Expected: All fields have the appropriate data

Dear Telerik,

i have a TelerikGrid with a TelerikGridColumn bound to a Decimal field.

The property  Editable="true" is set.

I can edit the number , but only 1 number at te time.
If I type one number, the edit-cell is closed immediately.

If I want to input the number 1000 , I habe to click the cell 4 times for each number . I cannot type 1000 in one action.

The problem does not occur with a String column.

Regards,

Gert