/// <summary>
/// Determine whether the property should be validated from the ValidatePropertyMode setting.
/// </summary>
/// <param name="propertyName">Name of the property to validate.</param>
/// <returns><c>true</c> if the property should be validated; otherwise <c>false</c>.</returns>
protected bool ShouldValidateProperty(string propertyName)
{
if (ValidatePropertyMode == ValidatePropertyMode.Never)
{
return(false);
}
if (ValidatePropertyMode == ValidatePropertyMode.HasError &&
ErrorsContainer.GetErrors(propertyName).Any() == false)
{
return(false);
}
return(true);
}
/// <summary>
/// Validates this instance's properties.
/// </summary>
/// <param name="updateDisplay">if set to <c>true</c> the display is notified.</param>
/// <returns><c>true</c> if the instance is valid.</returns>
public virtual bool Validate(bool updateDisplay)
{
var vc = new ValidationContext(this, null, null);
var results = new List <ValidationResult>();
var isValid = Validator.TryValidateObject(this, vc, results, true);
if (!updateDisplay)
{
return(isValid);
}
if (isValid)
{
ErrorsContainer.ClearErrors();
}
else
{
ErrorsContainer.SetErrors(results);
}
OnValidationComplete();
return(isValid);
}
/// <summary>
/// Gets the error message for the property with the given name.
/// </summary>
/// <returns>The error message for the property. The default is an empty string ("").</returns>
string IDataErrorInfo.this[string columnName]
{
get { return(ErrorsContainer.GetErrors(columnName).FirstOrDefault()); }
}
/// <summary>
/// Gets the validation errors for a specified property or for the entire object.
/// </summary>
/// <param name="propertyName">The name of the property to retrieve validation errors for, or null or <see cref="F:System.String.Empty"/> to retrieve errors for the entire object.</param>
/// <returns>
/// The validation errors for the property or object.
/// </returns>
IEnumerable INotifyDataErrorInfo.GetErrors(string propertyName)
{
return(ErrorsContainer.GetErrors(propertyName));
}