Table of Contents

Class RadzenCustomValidator

Namespace
Radzen.Blazor
Assembly
Radzen.Blazor.dll

A validator component which compares a component value with a specified value. Must be placed inside a RadzenTemplateForm<TItem>

public class RadzenCustomValidator : ValidatorBase, IComponent, IHandleEvent, IHandleAfterRender, IDisposable, IRadzenFormValidator
Inheritance
RadzenCustomValidator
Implements
Inherited Members

Examples

<RadzenTemplateForm TItem="Model" Data=@model>
   <RadzenTextBox Name="Email" @bind-Value=@model.Email />
   <RadzenCustomValidator Value=@model.Email Component="Email" Text="Email must be unique" Validator="@(() => ValidateNewEmail(model.Email))" Style="position: absolute" />
</RadzenTemplateForm>
@code {
   class Model
   {
        public string Email { get; set; }
   }
   Model model = new Model();

   string[] emails = new string[] { "andy@smith" };

   bool ValidateNewEmail(string email)
   {
       return !emails.Any(e => e.ToUpper().Equals(email.ToUpper()));
   }
}

Constructors

RadzenCustomValidator() 

public RadzenCustomValidator()

Properties

Text

Gets or sets the message displayed when the component is invalid. Set to "Value should match" by default.

[Parameter]
public override string Text { get; set; }

Property Value

string

Validator

Specifies the function which validates the component value. Must return true if the component is valid.

[Parameter]
public Func<bool> Validator { get; set; }

Property Value

Func<bool>

Methods

Validate(IRadzenFormComponent) 

protected override bool Validate(IRadzenFormComponent component)

Parameters

component IRadzenFormComponent

Returns

bool