When re-visiting a drop down each selected option is visually indicated, but not to a screen reader user. E.g.:
Figure: Selected options are highlighted but this is not indicated to a screen reader
Hello Team;
The current Blazor demo, runs as a client that is being hosted by a server side project. In the client project under wwwroot folder, there is an index.html there that acts as Blazor loader, with a fancy CSS animation and etc.
My suggestion for the RTM version of Telerik Blazor is to have something similar to this index page the we can use in out application that we can customize it a bit more.
I see a series of script files and links that many not needed for our apps.
It's just a thought and hope it can be done.
Thanks!
..Ben
Hi!
Im using a Grid component InCell Editing the OnDelete, OnUpdate handlers are working fine but OnCreate handler its not working. By the way im using a service to manage the CRUD operations as follows
Page Component
@page "/districts"
@using MVC.Services
@using MVC.Models
@using System.ComponentModel.DataAnnotations
@inject IDistrictService DistrictService
<h3>Districts</h3>
<TelerikGrid Data="@district" Sortable="true" EditMode="@GridEditMode.Incell"
Height="500px"
Pageable="true" PageSize=@PageSize
OnUpdate=@UpdateItem OnDelete=@DeleteItem OnCreate=@CreateItem OnCancel="@OnCancelHandler">
<GridToolBar>
<GridCommandButton Command="Add" Icon="add">Add District</GridCommandButton>
</GridToolBar>
<GridColumns>
<GridColumn Field="@(nameof(District.Id))" Editable="false" />
<GridColumn Field="@(nameof(District.Description))" Title="Description" />
<GridColumn Field="@(nameof(District.EnableApprovalWorkflow))" Title="Enable Approval Workflow" />
<GridCommandColumn>
<GridCommandButton Command="Delete" Icon="delete">Delete</GridCommandButton>
</GridCommandColumn>
</GridColumns>
</TelerikGrid>
@code {
int PageSize = 15;
IEnumerable<District> district;
protected override async Task OnInitializedAsync()
{
await GetGridData();
}
async Task GetGridData()
{
district = await DistrictService.DistrictList();
}
async Task CreateItem(GridCommandEventArgs args)
{
District item = (District)args.Item;
await DistrictService.DistrictInsert(item);
await GetGridData();
}
void OnCancelHandler(GridCommandEventArgs args)
{
District item = (District)args.Item;
}
async Task DeleteItem(GridCommandEventArgs args)
{
District item = (District)args.Item;
await DistrictService.DistrictDelete(item.Id);
await GetGridData();
}
async Task UpdateItem(GridCommandEventArgs args)
{
District item = (District)args.Item;
await DistrictService.DistrictUpdate(item);
await GetGridData();
}
}
Service Logic
using Dapper;
using Microsoft.Data.SqlClient;
using MVC.Models;
using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace MVC.Services
{
public class DistrictService : IDistrictService
{
private readonly SqlConnectionConfiguration _configuration;
public DistrictService(SqlConnectionConfiguration configuration)
{
_configuration = configuration;
}
public async Task<bool> DistrictInsert(District district)
{
using (var conn = new SqlConnection(_configuration.Value))
{
var parameters = new DynamicParameters();
parameters.Add("Description", district.Description, DbType.String);
parameters.Add("EnableApprovalWorkflow", district.EnableApprovalWorkflow, DbType.Boolean);
await conn.ExecuteAsync("spLookupDistrict_Insert", parameters, commandType: CommandType.StoredProcedure);
}
return true;
}
public async Task<IEnumerable<District>> DistrictList()
{
IEnumerable<District> districts;
using (var conn = new SqlConnection(_configuration.Value))
{
districts = await conn.QueryAsync<District>("spLookupDistrict_List", commandType: CommandType.StoredProcedure);
}
return districts;
}
public async Task<IEnumerable<District>> DistrictSearch(string @Param)
{
var parameters = new DynamicParameters();
parameters.Add("@Param", Param, DbType.String);
IEnumerable<District> districts;
using (var conn = new SqlConnection(_configuration.Value))
{
districts = await conn.QueryAsync<District>("spLookupDistrict_Search", parameters, commandType: CommandType.StoredProcedure);
}
return districts;
}
public async Task<District> District_GetOne(int @Id)
{
District district = new District();
var parameters = new DynamicParameters();
parameters.Add("@Id", Id, DbType.Int32);
using (var conn = new SqlConnection(_configuration.Value))
{
district = await conn.QueryFirstOrDefaultAsync<District>("spLookupDistrict_GetOne", parameters, commandType: CommandType.StoredProcedure);
}
return district;
}
public async Task<bool> DistrictUpdate(District district)
{
using (var conn = new SqlConnection(_configuration.Value))
{
var parameters = new DynamicParameters();
parameters.Add("Id", district.Id, DbType.Int32);
parameters.Add("Description", district.Description, DbType.String);
parameters.Add("EnableApprovalWorkflow", district.EnableApprovalWorkflow, DbType.Boolean);
await conn.ExecuteAsync("spLookupDistrict_Update", parameters, commandType: CommandType.StoredProcedure);
}
return true;
}
public async Task<bool> DistrictDelete(int Id)
{
var parameters = new DynamicParameters();
parameters.Add("@Id", Id, DbType.Int32);
using (var conn = new SqlConnection(_configuration.Value))
{
await conn.ExecuteAsync("spLookupDistrict_Delete", parameters, commandType: CommandType.StoredProcedure);
}
return true;
}
}
}
Hello Team;
Hope you're enjoying your well-deserved holiday.
As the new features arrive, the new/update docs will be arriving too. In order for us to stay on the top of all the changes taking place on the Doc section, I'd like to suggest to have a page that each line contains:
a) Date
b) Doc description
c) A link to that section
This way, we can regularly look at this list and jump to the new docs to stay up to date with the team.
Thanks!
..Ben
Using the new Grid grouping feature in 1.6, the Grouping button and the group header row both use the field name of the group column, rather than the title. This is visible in the animated demo, where a column titled "On Vacation" becomes "IsOnLeave" once it is used as a group name.
I expect this is already known and slated to be fixed, but there aren't any grouping issues at all in the public tracker, so just in case...
Hello Team;
I'd like to suggest to offer us an easy way to use the different themes offered by Bootswatch (bootstrap themes) during development and also allow us to offer that capability to our user, so they can pick their own theme.
Hope this helps!
Thanks!
..Ben
---
ADMIN EDIT
The following should let the multiselect render above the custom yellow element, but it does not. A workaround is available as the second CSS snippet that you can uncomment.
<style>
/*should work but does not*/
.high-zindex {
z-index: 124;/*note how this is higher than the z-index of the div element, and is higher than the default z-index of the component*/
}
/*workaround*/
.k-animation-container {
z-index: 15000;
}
</style>
<div style="position: absolute; z-index: 123; width: 600px; height: 200px; background: yellow;">
<TelerikMultiSelect Data="@Countries"
@bind-Value="@Values"
Placeholder="Enter Balkan country, e.g., Bulgaria"
ClearButton="true" AutoClose="false"
PopupClass="high-zindex">
</TelerikMultiSelect>
</div>
@code {
List<string> Countries { get; set; } = new List<string>();
List<string> Values { get; set; } = new List<string>();
protected override void OnInitialized()
{
Countries.Add("Albania");
Countries.Add("Bosnia & Herzegovina");
Countries.Add("Bulgaria");
Countries.Add("Croatia");
Countries.Add("Kosovo");
Countries.Add("North Macedonia");
Countries.Add("Montenegro");
Countries.Add("Serbia");
Countries.Add("Slovenia");
base.OnInitialized();
}
}
---
1. Create tree model from class:
public class TreeNodeViewModel
{
public string NodeName { get; set; }
public IEnumerable<TreeNodeViewModel> Children { get; set; }
public bool Expanded { get; set; }
public string Color { get; set; }
public string IconClass { get; set; }
}
2. Pass this tree for rendering to the component "TelerikTreeView".
3. An error comes out:
2020-12-03T09:44:15.312Z] Error: System.AggregateException: One or more errors occurred. (Object reference not set to an instance of an object.)
---> System.NullReferenceException: Object reference not set to an instance of an object.
at Telerik.Blazor.Data.TelerikTreeViewDataSource.GetFlatItems(IEnumerable`1 tree, List`1 result)
at Telerik.Blazor.Data.TelerikTreeViewDataSource.GetFlatItems(IEnumerable`1 tree, List`1 result)
at Telerik.Blazor.Data.TelerikTreeViewDataSource.GetFlatItems(IEnumerable`1 tree, List`1 result)
at Telerik.Blazor.Data.TelerikTreeViewDataSource.GetFlatItems(IEnumerable`1 tree, List`1 result)
at Telerik.Blazor.Data.TelerikTreeViewDataSource.FlattenTree()
at Telerik.Blazor.Data.TelerikTreeViewDataSource.InitData(IEnumerable`1 sourceData)
at Telerik.Blazor.Data.TelerikTreeViewDataSource.ProcessData(IEnumerable data)
at Telerik.Blazor.Components.TelerikTreeView.ProcessDataInternal()
at Telerik.Blazor.Components.Common.DataBoundComponent`1.ProcessDataAsync()
at Telerik.Blazor.Components.TelerikTreeView.OnAfterRenderAsync(Boolean firstRender)
--- End of inner exception stack trace ---
Note: This problem is due to the fact that there are no children in the last node of the tree and IEnumerable Children == NULL. Method "GetFlatItems" in version 2.18.0 it had a NULL check, in version 2.20.0 it is not.
I'm currently migrating a project from ASP.NET MVC to ASP.NET MVC Core.
In the server code I'm using a DataTable from the database which is converted to a DataSourceResult with ToDataSourceResult.
It worked fine in the ASP.NET MVC version, but the same code in the ASP.NET MVC Core version throws an exception when using aggregate functions.
System.InvalidOperationException: 'No generic method 'Sum' on type 'System.Linq.Enumerable' is compatible with the supplied type arguments and arguments. No type arguments should be provided if the method is non-generic. '
build.config showing in project as a linked file......
linked path: :\Users\User\.nuget\packages\telerik.ui.for.blazor\2.15.0\contentFiles\any\netstandard2.1\build.config
content:
<?xml version="1.0" encoding="utf-8"?> <configuration> <packageSources> <add key="nuget.org" value="https://api.nuget.org/v3/index.json" protocolVersion="3" /> <add key="LocalNuget" value="D:\Jenkins\Workspace\Blazor-Package\nugets" /> </packageSources> </configuration>
Hi,
I haven't been able to find this as a request or as a topic of discussion (If it iss feel free to point me to it and close this request) but I feel the Grouping feature is limiting. If I use the group field in say the DropDownList the grouping works fine but it orders it alphabetically.
I propose adding a number of features to enhance this. The first being a GroupAscending or GroupDescending tag. Takes a boolean value and allows you to change the order to ascending (default/True) or descending (False).
The second, and more complicated feature upgrade could be a GroupOrder tag. This would take a List of the group field names ordered in the way you require and apply that order to the grouping in the DropDownList. for instance if you had the list ordered as Category 1, Category 3, Category 2 it would display the items in each grouping in that order top to bottom.
Regards,
Luke
https://docs.telerik.com/blazor-ui/common-features/icons#icon-nuget-packages
When you click "Preview" under Using TelerikFontIcon, the preview is blank, even if I scroll to the top, still nothing.