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How can a Validation Message Component for Blazor be customized?

asked 2023-06-03 01:19:24 +0000

lakamha gravatar image

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answered 2023-06-03 01:35:02 +0000

qstack gravatar image

To customize a validation message component in Blazor, follow these steps:

  1. Create a new Razor component with the desired name, such as "CustomValidationMessage".

  2. Add a parameter to the component to accept the validation message string:

[Parameter]
public string Message { get; set; }
  1. Replace the default message display with the parameter value:
@if (!string.IsNullOrEmpty(Message))
{
    <div class="validation-message">@Message</div>
}
  1. Style the validation message component using CSS classes of your choice:
.validation-message {
    color: red;
    font-weight: bold;
    margin-top: 0.5rem;
}
  1. Use the new component in your Blazor form with the custom message:
<EditForm Model="@myModel" OnValidSubmit="@HandleValidSubmit">
    <div class="form-group">
        <label for="name">Name</label>
        <InputText id="name" class="form-control" @bind-Value="myModel.Name" />
        <CustomValidationMessage Message="@nameErrorMessage" />
    </div>
</EditForm>

In this example, the "CustomValidationMessage" component is used to display a validation error message for the "Name" input field, with a custom CSS style and content passed as a parameter.

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Asked: 2023-06-03 01:19:24 +0000

Seen: 2 times

Last updated: Jun 03 '23