Radzen validators in nested components

Hi @masleshov,

You should pass the Item property somehow to the CustomComponent. I tested the following which seems to work as expected.

Form.razor:

 <RadzenTemplateForm TItem="Model" Data=@model >
    <TestValidator Model=@model />
</RadzenTemplateForm>

TestValidator.razor:

<RadzenTextBox Name="FirstName" @bind-Value=@Model.FirstName />
<RadzenRequiredValidator Component="FirstName" Text="FirstName is required"/>

@code {
    [Parameter]
    public RequiredValidatorConfig.Model Model { get; set; }
}