/// <summary>
/// Called when the object is validating the fields.
/// </summary>
/// <param name="validationContext">The validation context.</param>
protected override void OnValidatingFields(IValidationContext validationContext)
{
if (string.IsNullOrWhiteSpace(Name))
{
validationContext.AddFieldValidationResult(new FieldValidationResult(NameProperty,ValidationResultType.Error, "Name cannot be empty."));
}
}
/// <summary>
/// Called when the object is validating the fields.
/// </summary>
/// <param name="validationContext">The validation context.</param>
protected override void OnValidatingFields(IValidationContext validationContext)
{
base.OnValidatingFields(validationContext);
// Map all field errors and warnings from the model to this viewmodel
foreach (var viewModelToModelMap in _viewModelToModelMap)
{
var mapping = viewModelToModelMap.Value;
var model = GetValue(mapping.ModelProperty);
string[] modelProperties = mapping.ValueProperties;
foreach (var modelProperty in modelProperties)
{
bool hasSetFieldError = false;
bool hasSetFieldWarning = false;
// IDataErrorInfo
var dataErrorInfo = model as IDataErrorInfo;
if (dataErrorInfo != null)
{
if (!string.IsNullOrEmpty(dataErrorInfo[modelProperty]))
{
validationContext.AddFieldValidationResult(FieldValidationResult.CreateError(mapping.ViewModelProperty, dataErrorInfo[modelProperty]));
hasSetFieldError = true;
}
}
// IDataWarningInfo
var dataWarningInfo = model as IDataWarningInfo;
if (dataWarningInfo != null)
{
if (!string.IsNullOrEmpty(dataWarningInfo[modelProperty]))
{
validationContext.AddFieldValidationResult(FieldValidationResult.CreateWarning(mapping.ViewModelProperty, dataWarningInfo[modelProperty]));
hasSetFieldWarning = true;
}
}
// INotifyDataErrorInfo & INotifyDataWarningInfo
if (_modelErrorInfo.ContainsKey(mapping.ModelProperty))
{
var modelErrorInfo = _modelErrorInfo[mapping.ModelProperty];
if (!hasSetFieldError)
{
foreach (string error in modelErrorInfo.GetErrors(modelProperty))
{
if (!string.IsNullOrEmpty(error))
{
validationContext.AddFieldValidationResult(FieldValidationResult.CreateError(mapping.ViewModelProperty, error));
break;
}
}
}
if (!hasSetFieldWarning)
{
foreach (string warning in modelErrorInfo.GetWarnings(modelProperty))
{
if (!string.IsNullOrEmpty(warning))
{
validationContext.AddFieldValidationResult(FieldValidationResult.CreateWarning(mapping.ViewModelProperty, warning));
break;
}
}
}
}
}
}
}
/// <summary>
/// Called when the object is validating the fields.
/// </summary>
/// <param name="validationContext">The validation context.</param>
protected override void OnValidatingFields(IValidationContext validationContext)
{
base.OnValidatingFields(validationContext);
// Map all field errors and warnings from the model to this viewmodel
foreach (var viewModelToModelMap in _viewModelToModelMap)
{
var mapping = viewModelToModelMap.Value;
var model = GetValue(mapping.ModelProperty);
string[] modelProperties = mapping.ValueProperties;
foreach (var modelProperty in modelProperties)
{
bool hasSetFieldError = false;
bool hasSetFieldWarning = false;
// IDataErrorInfo
var dataErrorInfo = model as IDataErrorInfo;
if (dataErrorInfo != null)
{
if (!string.IsNullOrEmpty(dataErrorInfo[modelProperty]))
{
validationContext.AddFieldValidationResult(FieldValidationResult.CreateError(mapping.ViewModelProperty, dataErrorInfo[modelProperty]));
hasSetFieldError = true;
}
}
// IDataWarningInfo
var dataWarningInfo = model as IDataWarningInfo;
if (dataWarningInfo != null)
{
if (!string.IsNullOrEmpty(dataWarningInfo[modelProperty]))
{
validationContext.AddFieldValidationResult(FieldValidationResult.CreateWarning(mapping.ViewModelProperty, dataWarningInfo[modelProperty]));
hasSetFieldWarning = true;
}
}
// INotifyDataErrorInfo & INotifyDataWarningInfo
if (_modelErrorInfo.ContainsKey(mapping.ModelProperty))
{
var modelErrorInfo = _modelErrorInfo[mapping.ModelProperty];
if (!hasSetFieldError)
{
foreach (string error in modelErrorInfo.GetErrors(modelProperty))
{
if (!string.IsNullOrEmpty(error))
{
validationContext.AddFieldValidationResult(FieldValidationResult.CreateError(mapping.ViewModelProperty, error));
break;
}
}
}
if (!hasSetFieldWarning)
{
foreach (string warning in modelErrorInfo.GetWarnings(modelProperty))
{
if (!string.IsNullOrEmpty(warning))
{
validationContext.AddFieldValidationResult(FieldValidationResult.CreateWarning(mapping.ViewModelProperty, warning));
break;
}
}
}
}
}
}
}