Unplanned
Last Updated: 23 Jul 2020 19:19 by ADMIN
Created by: Andrew
Comments: 0
Category: ComboBox
Type: Feature Request
3

I would like to change the text in the ComboBox dropdown when there is no data in the source collection.

At the moment the only option is through localization for all instances like here.

Unplanned
Last Updated: 23 Jul 2020 09:43 by ADMIN
Created by: Adrian
Comments: 0
Category: ComboBox
Type: Feature Request
3
Like the grouping in the Kendo combo box https://demos.telerik.com/kendo-ui/combobox/grouping
Unplanned
Last Updated: 08 Jul 2020 16:22 by ADMIN
Created by: IT
Comments: 1
Category: ComboBox
Type: Bug Report
2

When I select an item from the combo box dropdown, the OnChange event fires with the new value, but the model field is not updated yet.

@selectedValue

<TelerikComboBox Data="@myDdlData" TextField="MyTextField" ValueField="MyValueField"
                 @bind-Value="@selectedValue"  OnChange="@MyOnChangeHandler">
</TelerikComboBox>

@code {
    int selectedValue { get; set; }

    IEnumerable<MyDdlModel> myDdlData = Enumerable.Range(1, 20).Select(x => new MyDdlModel { MyTextField = "item " + x, MyValueField = x });
    
    private void MyOnChangeHandler(object theUserInput)
    {
        Console.WriteLine($"COMBO: the models is now {selectedValue} and the handler received {theUserInput}");
    }

    public class MyDdlModel
    {
        public int MyValueField { get; set; }
        public string MyTextField { get; set; }
    }
}

Unplanned
Last Updated: 10 Jun 2020 07:18 by ADMIN
Created by: Eugene
Comments: 0
Category: ComboBox
Type: Bug Report
1
Selection should not reset value on data change
Unplanned
Last Updated: 10 Jun 2020 06:43 by ADMIN
Created by: ben
Comments: 4
Category: ComboBox
Type: Feature Request
7

Transitioning our application from Telerik React to Blazor, our comboboxes in our React application are hooked up to OData endpoints because of the amount of data they could display, some as large as 30mb of json.

Server filtering, https://feedback.telerik.com/blazor/1447481-server-filtering-with-custom-data-request-event-that-can-accommodate-remote-data, almost works, however:

  • I can't set PageSize on the combobox
  • I can't set TotalCount on the combobox
  • Using Telerik.Blazor.ExtensionMethods.ToOdataString throws a NullReferenceException when I try to use it in the ReadItems method with the ComboBoxReadEventArgs args.Reqeuest.ToOdataString()

I tried setting up my combobox like my OData Grid, i.e.


<TelerikComboBox Data="@Dtos"
                         OnRead="@ReadItems"
                         Filterable="true"
                         Placeholder="Find what you seek by typing"
                         @bind-Value="@SelectedValue"
                         TextField="Name" 
                         ValueField="Id"
                         Pageable="true" 
                         PageSize="20" 
                         TotalCount=@Dtos.Count
                         >

However it throws an exception:

blazor.webassembly.js:1 WASM: System.InvalidOperationException: Object of type 'Telerik.Blazor.Components.TelerikComboBox`2[[MyType, MyNamespace, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[System.Guid, mscorlib, Version=2.0.5.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]]' does not have a property matching the name 'Pageable'.

Was hoping this would 'just work' like it does with the Grid, which is amazing!

Unplanned
Last Updated: 08 May 2020 08:57 by ADMIN
Created by: ben
Comments: 8
Category: ComboBox
Type: Feature Request
1

Related to https://docs.telerik.com/blazor-ui/knowledge-base/grid-bind-navigation-property-complex-object

However I'm looking to do this for the Combobox, i.e.

<TelerikComboBox Data="@Users"                               
                                 @bind-Value="@FormElement.UserInitials"
                                 ValueField="Dto.UserInitials"                                 
                                 TextField="Dto.UserInitials"
               >
</TelerikComboBox>

 

public class Users

{

   //bunch of properties 

   public UserSubProperties Dto {get; set;}

}

 

public class UserSubProperties

{

   public string UserInitials {get; set;}

}

Completed
Last Updated: 15 Apr 2020 13:42 by ADMIN
Release 2.11.0
When the Data and the Value of the combo box change, the combo does not let the model update its value.
Completed
Last Updated: 25 Mar 2020 13:28 by ADMIN
Release 2.10.0

ComboBox value binding broken in 2.9.0, works fine in 2.8.0

Please see your own documentation example:

<TelerikComboBox Data="@MyList" @bind-Value="MyItem">
</TelerikComboBox>

@code {
    protected List<string> MyList = new List<string>() { "first", "second", "third" };
    protected string MyItem { get; set; } = "second";
}


Completed
Last Updated: 09 Mar 2020 08:23 by ADMIN
Release 2.9.0
Completed
Last Updated: 29 Jan 2020 14:44 by ADMIN
Release 2.7.0
Allow Combobox and DropDownList to be able to be bound to a remote datasource, for example, a REST endpoint.
Completed
Last Updated: 29 Jan 2020 10:22 by ADMIN
Release 2.6.0

When i search for something by typing in combobox, i want to be able to use the keyboard to make my selection

Exable below, if i press b, I want to be able to either select baseboll by pressing enter, or make another selection by using arrow keys and then enter. 

 

 

 

Completed
Last Updated: 28 Jan 2020 11:26 by ADMIN
Release 2.7.0
Created by: Gilles
Comments: 3
Category: ComboBox
Type: Bug Report
4

Hi,

 

If I enter some characters in the ComboBox to filter it, the characters that I enter aren't shown and the filtering is not correct. Indeed, if I enter "ALU" (some of my data start with "ALU", no data appears.

Completed
Last Updated: 23 Jan 2020 15:54 by ADMIN
Release 2.7.0
Created by: Joshua
Comments: 4
Category: ComboBox
Type: Bug Report
1

I want to capture the user selection (which has to happen through ValueChanged, as OnChange does not fire when I need it). At this point I want to use the selection from the user and to clear the combo box.

I would expect that this should work but it does not:

 

@result
<br />
from model: @MyItem
<br />
<br />
<TelerikComboBox Data="@MyList" Value="@MyItem" ValueChanged="@( (string v) => MyValueChangeHandler(v) )" Placeholder="Choose something">
</TelerikComboBox>

@code {
    string result;
    private async Task MyValueChangeHandler(string theUserChoice)
    {
        result = string.Format("The user chose: {0}", theUserChoice);

        MyItem = null; // this should be enough

    }
    protected List<string> MyList = new List<string>() { "first", "second", "third" };
    protected string MyItem { get; set; } = "second";
}