public static void RemoveErrorForProperty(this INotifyDataErrorInfoEx notifyErrorInfo, string property, int errorCode)
{
bool oldHasErrors = notifyErrorInfo.HasErrors;
var errors = notifyErrorInfo.Errors;
if (errors.ContainsKey(property))
{
var propertyErrors = errors[property];
var errorInfo = propertyErrors.SingleOrDefault(e => e.ErrorCode == errorCode);
if (errorInfo != null)
{
// remove error for property
propertyErrors.Remove(errorInfo);
if (propertyErrors.Count == 0)
{
// property is valid
errors.Remove(property);
}
notifyErrorInfo.RaiseErrorsChanged(property);
}
}
if (oldHasErrors != notifyErrorInfo.HasErrors)
{
//OnHasErrorsChanged();
notifyErrorInfo.RaisePropertyChangedEx(m => m.HasErrors);
}
}
public static void AddErrorForProperty(this INotifyDataErrorInfoEx notifyErrorInfo, string property, int errorCode, string errorMessage)
{
var errors = notifyErrorInfo.Errors;
bool oldHasErrors = notifyErrorInfo.HasErrors;
if (!errors.ContainsKey(property))
{
errors.Add(property, new List <ValidationErrorInfo>());
}
var propertyErrors = errors[property];
if (propertyErrors.SingleOrDefault(e => e.ErrorCode == errorCode) == null)
{
var errorInfo = new ValidationErrorInfo();
errorInfo.ErrorCode = errorCode;
errorInfo.ErrorMessage = errorMessage;
propertyErrors.Add(errorInfo);
notifyErrorInfo.RaiseErrorsChanged(property);
}
if (oldHasErrors != notifyErrorInfo.HasErrors)
{
notifyErrorInfo.RaisePropertyChangedEx(m => m.HasErrors);
//OnHasErrorsChanged();
}
}
private static void RemoveAllErrorsForProperty(this INotifyDataErrorInfoEx notifyErrorInfo, string propertyName)
{
if (notifyErrorInfo.Errors.ContainsKey(propertyName))
{
notifyErrorInfo.Errors.Remove(propertyName);
notifyErrorInfo.RaiseErrorsChanged(propertyName);
}
notifyErrorInfo.RaisePropertyChangedEx(m => m.HasErrors);
}
public static void ClearErrors(this INotifyDataErrorInfoEx notifyErrorInfo)
{
if (notifyErrorInfo.Errors.Count == 0)
{
return;
}
var errors = notifyErrorInfo.Errors;
foreach (var propertyName in errors.Keys)
{
notifyErrorInfo.Errors[propertyName].Clear();
notifyErrorInfo.RaiseErrorsChanged(propertyName);
}
errors.Clear();
notifyErrorInfo.RaisePropertyChangedEx(m => m.HasErrors);
}