private static void ValidateModel(EditContext?editContext, ValidationMessageStore messages, ValidateForm editForm)
{
if (editContext != null)
{
var validationContext = new ValidationContext(editContext.Model);
var validationResults = new List <ValidationResult>();
editForm.ValidateObject(validationContext, validationResults);
messages.Clear();
foreach (var validationResult in validationResults.Where(v => !string.IsNullOrEmpty(v.ErrorMessage)))
{
if (!validationResult.MemberNames.Any())
{
messages.Add(new FieldIdentifier(editContext.Model, fieldName: string.Empty), validationResult.ErrorMessage !);
continue;
}
foreach (var memberName in validationResult.MemberNames)
{
messages.Add(editContext.Field(memberName), validationResult.ErrorMessage !);
}
}
editContext.NotifyValidationStateChanged();
}
}
/// <summary>
/// 添加数据合规检查
/// </summary>
/// <param name="editContext">The <see cref="EditContext"/>.</param>
/// <param name="editForm"></param>
public static EditContext AddEditContextDataAnnotationsValidation(this EditContext editContext, ValidateForm editForm)
{
if (editContext == null)
{
throw new ArgumentNullException(nameof(editContext));
}
var messages = new ValidationMessageStore(editContext);
editContext.OnValidationRequested +=
(sender, eventArgs) => ValidateModel(sender as EditContext, messages, editForm);
editContext.OnFieldChanged +=
(sender, eventArgs) => ValidateField(editContext, messages, eventArgs.FieldIdentifier, editForm);
return(editContext);
}