To validate a list object in MudBlazor, you can perform the following steps:
public class Person
{
[Required(ErrorMessage = "Name is required")] // Required validation rule for name property
public string Name { get; set; }
[Range(18, 60, ErrorMessage = "Age must be between 18 and 60")] // Range validation rule for age property
public int Age { get; set; }
}
EditForm
component.<MudEditForm T="List<Person?>" EditContext="editContext" OnValidSubmit="@OnValidSubmit">
<MudTable Items="@Model" Dense="true">
<HeaderContent>
<MudTh>T</MudTh>
<MudTh>Name</MudTh>
<MudTh>Age</MudTh>
</HeaderContent>
<RowTemplate>
<MudTd>
<MudTextField T="string" @bind-Value="@context.T"></MudTextField>
</MudTd>
<MudTd>
<MudTextField T="string" @bind-Value="@context.Name"></MudTextField>
<ValidationMessage For="@(()=> context.Name)"></ValidationMessage>
</MudTd>
<MudTd>
<MudNumericField T="int" @bind-Value="@context.Age"></MudNumericField>
<ValidationMessage For="@(()=> context.Age)"></ValidationMessage>
</MudTd>
</RowTemplate>
</MudTable>
<MudButton Color="Color.Primary" Variant="Variant.Filled" Type="submit">Submit</MudButton>
</MudEditForm>
private async Task OnValidSubmit(EditContext editContext)
{
try
{
if (ModelState.IsValid)
{
// list object is valid, proceed with submission
// ...
}
else
{
// list object is invalid, display validation errors
StateHasChanged();
}
}
catch(Exception ex)
{
// handle any submission exceptions
}
}
In the above implementation, the user is allowed to add multiple persons to the list object, and each person's name and age is validated against the specified data annotations. When the validation is successful, the OnValidSubmit
method is invoked to handle the list object submission. Otherwise, the validation errors are displayed on the form.
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Asked: 2021-07-27 11:00:00 +0000
Seen: 20 times
Last updated: Nov 11 '22
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