I'd like to have a data virtualization feature (similar to the OnRead event), so I can load only small chunks of data (appointments) specifically for the current page/view.
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ADMIN EDIT
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Currently, you can achieve similar functionality by handling the DateChanged and ViewChanged events of the Scheduler to load only the relevant appointments for the selected period.
You can find an example here: Load Scheduler Appointments on Demand.
The Timeline view currently does not provide the "Show business hours" option as in the other views.
Please add that for the Timeline view similar to the jQuery version of the component.
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ADMIN EDIT
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For the time being, you can achieve this functionality with a custom approach by programmatically setting the StartTime and EndTime of the view to equal the WorkDayStart and WorkDayEnd.
Here is a basic example: https://blazorrepl.telerik.com/QyEhvjbO07j1ZvID42.
Hi,
I'm building a Grid which contains a nested Grid in it's `<DetailTemplate/>`.
When I'm opening the details, the grid events fire, the data gets loaded correctly but the data doesn't show up in the UI. Using .NET 8 Blazor with Telerik UI for Blazor Version 6.0.2.
This is the grid containing the Grid (data here gets loaded correctly):
<TelerikGrid @ref="@_grid" TItem="ChecklistDetailModel" Pageable Page="@_settings.CurrentPageNumber" PageSize="@_settings.Limit" OnRead="@OnPageReadAsync" Width="100%" Height="100%">
<GridToolBarTemplate>
<LawAreaSelect SelectedLawAreaId="_settings.SelectedLawAreaId" SelectedCountryId="_settings.SelectedCountryId" OnLawAreaSelected="OnLawAreaSelected" Width="250px" />
<CountriesSelect Value="_settings.SelectedCountryId" OnChangeCallback="OnCountrySelected" Width="250px" />
<TelerikButton Icon="FontIcon.FileAdd" OnClick="OnCreateChecklistButtonClick" Title="@Localizer["ChecklistOverview.Create"]" />
</GridToolBarTemplate>
<GridColumns>
<GridColumn Title="ID" Width="50px">
<Template Context="checklist">
@{
var model = checklist as ChecklistDetailModel;
<span>@model.Id</span>
}
</Template>
</GridColumn>
<GridColumn Title="@Localizer["Data.LawArea"]">
<Template Context="checklist">
@{
var model = checklist as ChecklistDetailModel;
<span>@model.LawArea.Name</span>
}
</Template>
</GridColumn>
<GridColumn Title="@Localizer["Data.Country"]">
<Template Context="checklist">
@{
var model = checklist as ChecklistDetailModel;
<span>@model.Country.Name</span>
}
</Template>
</GridColumn>
<GridColumn Title="@Localizer["Data.Checklist.Revision"]">
<Template Context="checklist">
@{
var model = checklist as ChecklistDetailModel;
@if (model.RevisionName != null)
{
<span>@model.RevisionName</span>
}
else
{
<i>@Localizer["Data.Checklist.NoRevision"]</i>
}
}
</Template>
</GridColumn>
<GridColumn Title="@Localizer["Data.ChecklistRevisionDate"]">
<Template Context="checklist">
@{
var model = checklist as ChecklistDetailModel;
@if (model.LastUpdated.HasValue)
{
<span>@model.LastUpdated.Value.ToShortDateString()</span>
}
else
{
<span>@model.CreatedDate.ToShortDateString()</span>
}
}
</Template>
</GridColumn>
<GridCommandColumn>
<GridCommandButton Icon="FontIcon.EditTools" OnClick="OnEditChecklistButtonClick" />
<GridCommandButton Icon="FontIcon.PaperPlane" OnClick="OnAssignChecklistButtonClick" />
</GridCommandColumn>
</GridColumns>
<DetailTemplate Context="checklist">
<CustomerChecklistGrid ChecklistId="checklist.Id" OnEditCustomerChecklistButtonClick="OnEditCustomerChecklistButtonClick" OnNavigateToCustomerChecklistButtonClick="OnNavigateToCustomerChecklistButtonClick" />
</DetailTemplate>
</TelerikGrid>This is the `CustomerChecklistGrid` code inserted into the DetailTemplate of the Grid above:
<TelerikGrid @ref="_grid" TItem="CustomerChecklistModel" Pageable Page="_settings.CurrentPageNumber" PageSize="_settings.Limit" OnRead="OnPageReadAsync">
<GridToolBarTemplate>
<CustomerSelect OnCustomerSelected="OnCustomerSelected" SelectedCustomerId="_settings.SelectedCustomerId" Width="250px" />
</GridToolBarTemplate>
<GridColumns>
<GridColumn Title="ID" Width="50px">
<Template Context="customerChecklist">
@{
var model = customerChecklist as CustomerChecklistModel;
<span>@model.Id</span>
}
</Template>
</GridColumn>
<GridColumn Title="@Localizer["Data.Customer"]">
<Template Context="customerChecklist">
@{
var model = customerChecklist as CustomerChecklistModel;
<span>@model.Customer.Name</span>
}
</Template>
</GridColumn>
<GridColumn Title="@Localizer["ChecklistsOverview.CompletedOn"]">
<Template Context="customerChecklist">
@{
var model = customerChecklist as CustomerChecklistModel;
@if (model.CompletedOn.HasValue)
{
<span>@model.CompletedOn.Value.ToShortDateString()</span>
}
else
{
<i>@Localizer["ChecklistsOverview.NotCompleted"]</i>
}
}
</Template>
</GridColumn>
<GridCommandColumn Context="customerChecklist">
<GridCommandButton Icon="FontIcon.EditTools" OnClick="OnEditCustomerChecklistButtonClickAsync" />
@{
var model = customerChecklist as CustomerChecklistModel;
if (!model.CompletedOn.HasValue)
{
<GridCommandButton Icon="FontIcon.PaperPlane" OnClick="OnNavigateToCustomerChecklistButtonClickAsync" />
}
}
</GridCommandColumn>
</GridColumns>
</TelerikGrid>This is the backing C# code for the grid:
public partial class CustomerChecklistGrid
{
[Parameter] public int ChecklistId { get; set; }
[Parameter] public EventCallback<CustomerChecklistModel> OnEditCustomerChecklistButtonClick { get; set; }
[Parameter] public EventCallback<CustomerChecklistModel> OnNavigateToCustomerChecklistButtonClick { get; set; }
[Inject] public ICustomerChecklistService CustomerChecklistService { get; set; }
[Inject] public IStringLocalizer<SharedResources> Localizer { get; set; }
[CascadingParameter] public Routes App { get; set; }
private CustomerChecklistSettings _settings = new();
private PageResult<CustomerChecklistModel> _data = new();
private TelerikGrid<CustomerChecklistModel> _grid;
private async void OnPageReadAsync(GridReadEventArgs args)
{
var newOffset = args.Request.PageSize * (args.Request.Page - 1);
_settings.Offset = newOffset;
_settings.CurrentPageNumber = args.Request.Page;
var request = new CustomerChecklistRequestModel
{
Offset = _settings.Offset,
Limit = _settings.Limit,
ChecklistId = ChecklistId,
OrderBy = _settings.OrderBy,
IsCompleted = _settings.IsCompleted,
CustomerId = _settings.SelectedCustomerId
};
_data = await CustomerChecklistService.GetPageAsync(request);
args.Data = _data.Items;
args.Total = _data.Total;
StateHasChanged();
}
private void OnCustomerSelected(int customerId)
{
_settings.SelectedCustomerId = customerId;
_settings.CurrentPageNumber = 1;
_grid.Rebind();
}
private async Task OnEditCustomerChecklistButtonClickAsync(GridCommandEventArgs args)
{
var customerChecklist = args.Item as CustomerChecklistModel;
if (OnEditCustomerChecklistButtonClick.HasDelegate)
{
await OnEditCustomerChecklistButtonClick.InvokeAsync(customerChecklist);
}
}
private async Task OnNavigateToCustomerChecklistButtonClickAsync(GridCommandEventArgs args)
{
var customerChecklist = args.Item as CustomerChecklistModel;
if (OnNavigateToCustomerChecklistButtonClick.HasDelegate)
{
await OnNavigateToCustomerChecklistButtonClick.InvokeAsync(customerChecklist);
}
}
private sealed class CustomerChecklistSettings
{
public int Offset { get; set; }
public int Limit { get; set; } = 25;
public int CurrentPageNumber { get; set; } = 1;
public int? SelectedCustomerId { get; set; }
public bool? IsCompleted { get; set; }
public string OrderBy { get; set; } = "customer";
}
}This is a screenshot of the UI I'm seeing. I'm expecting data to show up in the inner grid, data gets loaded correctly (when debugging I see data is available), however no records are shown.
Hello,
I use the scheduler component with grouping ressources on a timeline view.
When there is only one ressource for the second group, there is no text showing on the view.
It works with 2 ressources.
I try over your demo and i have the same result.
https://blazorrepl.telerik.com/GyYAmBGE22N2CcIQ27
When I use 2 ressources it works.
Thank you
When I change the date while I'm in the month view, the slot doesn't change to the newly calculated ItemsPerSlot value.
To reproduce, open the calendar and set the date to the 3rd of December: REPL link.
I want to be able to limit the Scheduler to a minimum and/or maximum date.
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ADMIN EDIT
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This request could be revised in two separate tracks:
- Min and Max parameters on component level regardless of the selected view
- Min and Max parameters for the separate views ( Day, Week, Month etc.)
Please share your thoughts on how you'd expect it to be implemented.
Now that we can have more than 2 events in a day in Month View, we need to add an AppointmentHeight parameter to be able to make the appointments taller in height to accommodate longer titles.
ADMIN EDIT
An alternative for the time being is to show the longer content by using the appointment templates and the Tooltip component. For example:
https://github.com/telerik/blazor-ui/tree/master/scheduler/appointment-tooltips
When adding / editing the last time slot for the day, SchedulerEditEventArgs has wrong End value.
For example Start value is 28.12.2023. 23:30:00 and end value is 28.12.2023. 00:00:00. Should instead be 28.12.2023. 23:59:59 or 29.12.2023. 00:00:00.
Hello!
After update to 2.27 there is a bug to scheduler with number of days and refresh.
You can check your live demo also:
In a Scheduler with vertical grouping, I am dynamically changing the displayed resources during runtime. It looks like displaying a longer resource name breaks the rendering.
The Scheduler does not recalculate the cell width when changing the resource list.
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ADMIN EDIT
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Possible workarounds:
- Force component rerendering when changing the resources list - dispose it and initialize it again using a flag and conditional rendering. Example: https://blazorrepl.telerik.com/wwuDGLvE42TUf5En09.
- Use CSS to set appropriate min-width to the resource cell, so it is wide enough to fit the longest name of the available resources. Example: https://blazorrepl.telerik.com/wmaDGhFY37t5pFj757.
When using Vertical Grouping by multiple resources and Timeline View, the group rows without appointments do not have min-height as the rest of the group rows. Thus, they appear shorter which causes an offset of the events on the next rows.
Steps to reproduce:
- Load Timeline View Demo
- Delete Charlie's event in Small meeting room
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ADMIN EDIT
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A possible workaround for the time being is to set min-height to all rows. Apply this style only when Timeline view is selected, so this does not break the rendering of the other views.
Example: https://blazorrepl.telerik.com/mHYmwsOt30fjTZ6a32.
I want to hide the 'All Day slot' - I don't want to offer this functionality.
At the moment, you could try CSS like this, but ideally this would be a parameter (maybe on the view):
.no-allday .k-scheduler-head .k-scheduler-group:last-child{
display:none;
} <div class="no-allday">
<TelerikScheduler Data="@Appointments" @bind-Date="@StartDate" @bind-View="@CurrView" Height="600px" Width="800px">
<SchedulerViews>
<SchedulerDayView StartTime="@DayStart" />
<SchedulerWeekView StartTime="@DayStart" />
<SchedulerMultiDayView StartTime="@DayStart" NumberOfDays="10" />
</SchedulerViews>
</TelerikScheduler>
</div>
I am using a Scheduler with vertical grouping by multiple resources. In Timeline view, some of the appointments appear with an offset and are not correctly aligned in the cell. In some cases, the appointment is even rendered outside the slot it is associated with.
The issue seems to occur as of UI for Blazor 4.2.0. The same configuration worked fine in 4.1.0.
- working version (4.1.0)...
https://blazorrepl.telerik.com/cdOXvcwQ0378eNBL22 - not working version (4.2.0)...
https://blazorrepl.telerik.com/GxEZvwwG04r4TlwA44
I am using the Scheduler component in Telerik for Blazor and am getting an intermittent exception being thrown, usually when navigating quickly through the application (ie. navigating to another page before the initial page containing the Scheduler has finished rendering).
This is the exception received:
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ADMIN EDIT
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The Scheduler must render in the browser and then it measures and adjusts its layout with JavaScript. You may hit this error if the component is disposed before or during this JavaScript call.
Example use cases:
- Navigating to a different page before the full component initialization
Workaround:
The possibility to hit that is higher in case the Scheduler needs more time to initialize (e.g. it has to render a large set of appointments). In such a scenario, it will be useful to optimize the time needed for loading the appointments, so that the initial component rendering is not blocked by waiting all the data. For that purpose, you may load the appointments on demand - not fetching all possible appointments at once, but only when the user should see them. An example of such an implementation you may find here: https://github.com/telerik/blazor-ui/tree/master/scheduler/load-appointments-on-demand. - Disposing the component during runtime (e.g. depending on the screen size) - https://blazorrepl.telerik.com/wIuHliEt40SutaBI53.
Workaround:
Potential solution in this case - render component after calculating the screen size: https://blazorrepl.telerik.com/coEnPWON4570Wna007.
I am really looking to try to do something like this in Blazor: ASP.NET MVC Scheduler Hierarchical Grouping Demo | Telerik UI for ASP.NET MVC
In MVC, this feature is implemented with the dataParentValueField.