/// <summary>
/// Gets a warning for a specific column.
/// </summary>
/// <param name="columnName">Column name.</param>
/// <returns>The warning or <see cref="string.Empty"/> if no warning is available.</returns>
string IDataWarningInfo.this[string columnName]
{
get
{
if (string.IsNullOrEmpty(columnName))
{
return(string.Empty);
}
if (HideValidationResults)
{
return(string.Empty);
}
if (!IsValidated && AutomaticallyValidateOnPropertyChanged)
{
Validate();
}
var warning = (from fieldWarning in ValidationContext.GetFieldWarnings(columnName)
select fieldWarning.Message).FirstOrDefault();
return(warning ?? string.Empty);
}
}
/// <summary>
/// Gets the warnings for the specific property name.
/// </summary>
/// <param name="propertyName">Name of the property.</param>
/// <returns><see cref="IEnumerable"/> of warnings.</returns>
IEnumerable INotifyDataWarningInfo.GetWarnings(string propertyName)
{
var elements = new List <string>();
if (HideValidationResults)
{
return(elements);
}
if (string.IsNullOrEmpty(propertyName))
{
lock (_validationContext)
{
foreach (var warning in _validationContext.GetBusinessRuleWarnings())
{
elements.Add(warning.Message);
}
}
}
else
{
lock (_validationContext)
{
foreach (var warning in _validationContext.GetFieldWarnings(propertyName))
{
elements.Add(warning.Message);
}
}
}
return(elements);
}
/// <summary>
/// Gets the warnings for the specific property name.
/// </summary>
/// <param name="propertyName">Name of the property.</param>
/// <returns><see cref="IEnumerable"/> of warnings.</returns>
IEnumerable INotifyDataWarningInfo.GetWarnings(string propertyName)
{
if (string.IsNullOrEmpty(propertyName))
{
lock (ValidationContext)
{
foreach (var warning in ValidationContext.GetBusinessRuleWarnings())
{
yield return(warning.Message);
}
}
}
else
{
lock (ValidationContext)
{
foreach (var warning in ValidationContext.GetFieldWarnings(propertyName))
{
yield return(warning.Message);
}
}
}
}
public void ReturnsRightValidationsForEmptyContextWithTagAndPropertyName()
{
var context = new ValidationContext();
var fieldValidations = context.GetFieldWarnings("MyProperty", "tag");
Assert.AreEqual(0, fieldValidations.Count);
}
public void ReturnsRightValidationsForEmptyContextWithTag()
{
var context = new ValidationContext();
var fieldValidations = context.GetFieldWarnings((object)"tag");
Assert.AreEqual(0, fieldValidations.Count);
}