QueryableExtensions.ToDataSourceResult throws IndexOutOfRangeException if a DataTable contains deleted rows.

using System.Data;
using Telerik.DataSource;
using Telerik.DataSource.Extensions;

var dt = GetData();

var res = dt.ToDataSourceResult(new DataSourceRequest());

DataTable GetData()
{
    DataTable table = new DataTable();

    // Make sure you specify the correct types
    // If you have any nulls in your (database) Column, you should use nullable type (int?, DateTime?,...)
    table.Columns.Add("ProductId", typeof(int));
    table.Columns.Add("ProductName", typeof(string));
    table.Columns.Add("UnitPrice", typeof(decimal));
    table.Columns.Add("UnitsInStock", typeof(short));

    // You should set default values to the columns that could be skipped in Create/Edit.
    // The alternative approach is to set the default values in the UpdateHandler and/or CreateHandler.

    // Having a default value in this case will prevent having DBNull values in your DataTable, because
    // DBNull is not parsable to any other primitive type and if you pass it to the grid, some of the operations could be broken
    table.Columns["ProductName"].DefaultValue = default(string);
    table.Columns["UnitPrice"].DefaultValue = default(decimal);
    table.Columns["UnitsInStock"].DefaultValue = default(short);

    for (int i = 1; i < 50; i++)
    {
        table.Rows.Add(i, $"Product{i}", i * 5.2, i * 2);
    }

    table.AcceptChanges();

    var lastRow = table.Rows[table.Rows.Count - 1];

    lastRow.Delete();

    return table;
}

It would be great if the controls supported arbitrary attributes. Similar to how it is done in the native form editing controls in Blazor framework.

ASP.NET Core Blazor forms and validation

"All of the input components, including EditForm, support arbitrary attributes. Any attribute that doesn't match a component parameter is added to the rendered HTML element."

This feature is requesting a Blazor version of the RadPropertyGrid, or a more modern Material Design(ish) equivalent.

https://docs.telerik.com/devtools/wpf/controls/radpropertygrid/overview

As  more customers are adopting Blazor, we're porting our rich design time tooling to the web in SaaS type offers.  No Blazor control vendor has this type of control today, and it's sorely needed.  Even finding a Web/Angular version of this type of control is practically impossible.

Having this control combined with the existing Telerik Blazor property editors (combo boxes, edit fields, boolean controls, color pickers, font pickers, etc.) would give you a strong leg up on your competitors.

Note: Our company is already licensing your Blazor controls and I speak to Maria every few months on the roadmap.

I would like a Blazor PropertyGrid with

-- that could be bound to an instance of a custom Type that implemented INotifyPropertyChanged

-- with expandable/collapsible sections with the ability to prevent a  user from expanding a collapsed section (e.g. the user lacks privileges to see that section's data)

-- would keep track of its UI state including collapsed sections (similar to the excellent implementation in Telerik's  Blazor Grid)

-- that would allow the use of all Telerik Blazor editors as cell-value editors

I am interested in using this component primarily as a data-entry UX in a data-entry-intensive line-of-business application.  Such a grid offers standard navigation on all data-entry screens in the application, eliminating tab-order, thereby greatly simplifying the end-user experience. The expanding/collapsing sections make it very economical in its use of screen real-estate. I have used such a component (from a competitor of Telerik) in a WinForms application with excellent results. 

I saw the FloatingActionButton Web control available in KendoUI and ASP.NET Core and I would like it in UI for Blazor: https://demos.telerik.com/kendo-ui/floatingactionbutton/index

Hi,

The idea is to use the new way to present information to user (without specific label) but using the label of the components.

InTelerikTextBox, no matter, I have a Label property.

Is it possible to have the same properties for the other controls ?

    <input class="form-control" readonly="@(!EditMode)" type="text" @bind="@FormField.TextValue"/>

Have been pouring through all your release videos, (Great Job Sam, Ed Et Al...) to be better informed as to what project type to select for a new Enterprise Admin App. The FilterView control stood out as a means of potentially saving me more than a week of work, but I just can't see making a new forms app going forward. Blazor and Maui seem like the only logical choices going forward, please add if convenient...

Thanks.

When you have a TelerikNumericTextBox bound to a non nullable field (like int test) it will display a 0 like this which is correct

But when you start changing the value, that initial 0 will still remain like (1234 entered)

It will however sort itself out once you leave the field

But it is still confusing to users and also makes then try to remove the initial 0.

The initial 0 should not be displayed when user has switched focus to a field and started entering text. This problem does not seem to happen if you have already entered a value and revisit the textbox. 

Ideally formatting (in this case currency) should also be displayed when in Edit but that is perhaps another topic. 

Thanks. 

We are based in the US; but want to display values in a numeric text box based on the culture of the place where the data was entered.

So if the data was entered in the UK, we want the number to be formatted according to UK culture, etc.  That way, it's easy to tell that number is representing pounds vs dollars, etc.

Can we please get the ability to set culture to specific controls?  We don't want to change the current thread culture for everything on the page, just for one control.

thanks!

<GridCommandButton Command="Save" Icon="save" ShowInEdit="true" Title="Some text here">Some text here</GridCommandButton>

Update and Cancel GridCommandButtons do not honor Caption when using PopUp edit forms.

The "Some text here" will show up as name of button in Inline editing but not in Popup form editing where the default Save button will instead be shown.

Create a general purpose component to allow dragging and dropping of other components or files from the filesystem. Expose events that let us get access to the files that were dropped so that we can access the contents of those files or send them off to be uploaded.

Currently in Blazor we can do this with the InputFile component. But I would like the ability to create a droppable UI and have any kind of child content in it. And also get at the file content of files dropped.

Hi,

is it possible to add control of vertical timeline like this (https://antblazor.com/en-US/components/timeline) with extra features like:

• adding new items with button on top
• inline edit
• item selection
• item actions

I also attached image of what i build based on control from link above, I would like to implement something similar with Telerik.

Maybe you can recommend some other controls to replace it with?

Thank you :)