public void Validate_ReturnsExpectedResults_Scalar()
{
// Arrange
var validator = new DataSetValidator();
var model = DataSet <SampleModel> .Create();
model.AddRow();
var metadata = _metadataProvider.GetMetadataForProperty(
typeof(ScalarSampleModelContainer),
nameof(ScalarSampleModelContainer.SampleModel));
var validationContext = new ModelValidationContext(
new ActionContext(),
metadata,
_metadataProvider,
container: null,
model: model);
// Act
var results = validator.Validate(validationContext);
var resultsArray = results.ToArray();
// Assert
Assert.NotNull(results);
Assert.Single(resultsArray);
Assert.Equal(nameof(SampleModel.ID), resultsArray[0].MemberName);
}
public static string RealDisplayNameFor <TModel, TValue>(this HtmlHelper <TModel> htmlHelper, Expression <System.Func <TModel, TValue> > expression)
{
string result;
if (htmlHelper.ViewData.Model == null)
{
result = "";
}
else
{
string property = ExpressionHelper.GetExpressionText(expression);
if (string.IsNullOrEmpty(property))
{
result = "";
}
else
{
ModelMetadata metadata = null;
try
{
ModelMetadataProvider arg_94_0 = ModelMetadataProviders.Current;
System.Func <object> arg_94_1 = () => htmlHelper.ViewData.Model;
TModel model = htmlHelper.ViewData.Model;
metadata = arg_94_0.GetMetadataForProperty(arg_94_1, model.GetType(), property);
}
catch
{
}
result = ((metadata != null) ? metadata.DisplayName : property);
}
}
return(result);
}
public bool IsRequiredMember(MemberInfo member)
{
if (member == null)
{
throw Error.ArgumentNull("member");
}
// Optimization : avoid computing validators if there are no validator providers
if (_validatorProviders == null || !_validatorProviders.Any())
{
return(false);
}
PropertyInfo property = member as PropertyInfo;
// if member is not a property or there is no public getter
if (property == null || property.GetGetMethod() == null)
{
return(false);
}
ModelMetadata metadata = _metadataProvider.GetMetadataForProperty(() => null, member.DeclaringType, member.Name);
if (metadata.ModelType.IsNullable())
{
// If the model type is nullable, the value validator will raise a model error for the null member
// Only non-nullable property types need to be checked by the formatter
return(false);
}
IEnumerable <ModelValidator> validators = metadata.GetValidators(_validatorProviders);
return(validators.Any(validator => validator.IsRequired));
}
/// <summary>
/// Specifies a column should be constructed for the specified property.
/// </summary>
/// <param name="propertySpecifier">Lambda that specifies the property for which a column should be constructed</param>
public IGridColumn <T> For(Expression <Func <T, object> > propertySpecifier)
{
var memberExpression = GetMemberExpression(propertySpecifier);
var propertyType = GetTypeFromMemberExpression(memberExpression);
var declaringType = memberExpression == null ? null : memberExpression.Expression.Type;
var inferredName = memberExpression == null ? null : memberExpression.Member.Name;
var column = new GridColumn <T>(propertySpecifier.Compile(), inferredName, propertyType);
if (declaringType != null)
{
var metadata = _metadataProvider.GetMetadataForProperty(null, declaringType, inferredName);
if (!string.IsNullOrEmpty(metadata.DisplayName))
{
column.Named(metadata.DisplayName);
}
if (!string.IsNullOrEmpty(metadata.DisplayFormatString))
{
column.Format(metadata.DisplayFormatString);
}
}
Add(column);
return(column);
}
public bool IsRequiredMember(MemberInfo member)
{
if (member == null)
{
throw Error.ArgumentNull("member");
}
// Optimization : avoid computing validators if there are no validator providers
if (_validatorProviders == null || !_validatorProviders.Any())
{
return(false);
}
PropertyInfo property = member as PropertyInfo;
// if member is not a property or there is no public getter
if (property == null || property.GetGetMethod() == null)
{
return(false);
}
ModelMetadata metadata = _metadataProvider.GetMetadataForProperty(() => null, member.DeclaringType, member.Name);
IEnumerable <ModelValidator> validators = metadata.GetValidators(_validatorProviders);
return(validators.Any(validator => validator.IsRequired));
}
public override ModelMetadata GetMetadataForProperty(Func <object> modelAccessor, Type containerType, string propertyName)
{
var metadata = _innerProvider.GetMetadataForProperty(modelAccessor, containerType, propertyName);
var additionalMetadata = _wrappedProvider.GetMetadataForProperty(modelAccessor, containerType, propertyName);
MergeAdditionalValues(metadata.AdditionalValues, additionalMetadata.AdditionalValues);
return(metadata);
}
static void Main(string[] args)
{
HttpConfiguration configuration = new HttpConfiguration();
ModelMetadataProvider metadataProvider = configuration.Services.GetModelMetadataProvider();
ModelMetadata metadata = metadataProvider.GetMetadataForProperty(null, typeof(Employee), "Salary");
IEnumerable <ModelValidatorProvider> validatorProviders = configuration.Services.GetModelValidatorProviders();
ModelValidator[] validators = metadata.GetValidators(validatorProviders).ToArray();
for (int i = 0; i < validators.Length; i++)
{
Console.WriteLine("{0}.{1}", i + 1, validators[i].GetType().Name);
}
}
public IEnumerable <ModelClientValidationRule> GetClientValidationRules(ModelMetadata metadata, ControllerContext context)
{
string name = "";
if (metadata.ContainerType != null && this.OtherPropertyDisplayName == null)
{
CompareAttribute displayName = this;
ModelMetadataProvider current = ModelMetadataProviders.Current;
name = current.GetMetadataForProperty(() => metadata.Model, metadata.ContainerType, this.OtherProperty).GetDisplayName();
}
ILocalizationService _LocalizationService = DependencyResolver.Current.GetService <ILocalizationService>();
yield return(new ModelClientValidationEqualToRule(String.Format(CultureInfo.CurrentCulture, _LocalizationService.LocalizeString(ErrorMessageString, CultureInfo.CurrentCulture.Name), name, OtherPropertyDisplayName ?? OtherProperty), FormatPropertyForClientValidation(this.OtherProperty)));
}
public bool IsRequiredMember(MemberInfo member)
{
if (member == null)
{
throw Error.ArgumentNull("member");
}
if (!(member is PropertyInfo))
{
return(false);
}
ModelMetadata metadata = _metadataProvider.GetMetadataForProperty(() => null, member.DeclaringType, member.Name);
IEnumerable <ModelValidator> validators = metadata.GetValidators(_validatorProviders);
return(validators.Any(validator => validator.IsRequired));
}
private ModelMetadata GetMetadataForProperty(
Func <object> modelAccessor,
Type containerType,
string propertyName)
{
var propertyMetadata =
_oldMetadataProvider.GetMetadataForProperty(modelAccessor, containerType, propertyName);
if (propertyMetadata == null)
{
return(null);
}
if (propertyMetadata.ModelType == _modelType)
{
return(CloneMetadata(() => propertyMetadata.Model));
}
return(propertyMetadata);
}
private static void CreateModelValidationNodeRecursive(object o, ModelValidationNode parentNode, ModelMetadataProvider metadataProvider, ModelMetadata metadata, ModelStateDictionary modelStateDictionary, string modelStateKey, HashSet <object> visited)
{
if (visited.Contains(o))
{
return;
}
visited.Add(o);
foreach (PropertyDescriptor property in TypeDescriptor.GetProperties(o))
{
// append the current property name to the model state path
string propertyKey = modelStateKey;
if (propertyKey.Length > 0)
{
propertyKey += ".";
}
propertyKey += property.Name;
// create the node for this property and add to the parent node
object propertyValue = property.GetValue(o);
metadata = metadataProvider.GetMetadataForProperty(() =>
{
return(propertyValue);
}, o.GetType(), property.Name);
ModelValidationNode childNode = new ModelValidationNode(metadata, propertyKey);
parentNode.ChildNodes.Add(childNode);
// add the property node to model state
ModelState modelState = new ModelState();
modelState.Value = new ValueProviderResult(propertyValue, null, CultureInfo.CurrentCulture);
modelStateDictionary.Add(propertyKey, modelState);
if (propertyValue != null)
{
CreateModelValidationNodeRecursive(propertyValue, childNode, metadataProvider, metadata, modelStateDictionary, propertyKey, visited);
}
}
}
public override ModelMetadata GetMetadataForProperty(Func <object> modelAccessor, Type containerType, string propertyName)
{
return(_innerMetadataProvider.GetMetadataForProperty(modelAccessor, containerType, propertyName));
}
/// <summary>
/// Specifies a column should be constructed for the specified property.
/// add by zhangh 2013/06/03
/// </summary>
/// <param name="propertySpecifier"></param>
/// <param name="fieldName"></param>
/// <returns></returns>
public IGridColumn <T> For(Expression <Func <T, object> > propertySpecifier, string fieldName)
{
var memberExpression = GetMemberExpression(propertySpecifier);
var propertyType = GetTypeFromMemberExpression(memberExpression);
var declaringType = memberExpression == null?string.IsNullOrEmpty(fieldName) ? null : typeof(T) : memberExpression.Expression.Type;
var inferredName = memberExpression == null ? fieldName : memberExpression.Member.Name;
var column = new GridColumn <T>(propertySpecifier.Compile(), inferredName, propertyType);
if (!string.IsNullOrEmpty(fieldName))
{
column.FieldName = fieldName;
}
else
{
string tmpName = ExpressionHelper.GetExpressionText(propertySpecifier);
if (string.IsNullOrEmpty(tmpName) && memberExpression != null)
{
tmpName = memberExpression.ToString().Substring(memberExpression.ToString().IndexOf(".") + 1);
}
column.FieldName = tmpName;
}
if (!string.IsNullOrEmpty(column.FieldName))
{
string[] props = column.FieldName.Split('.');
Type type = typeof(T);
PropertyInfo property = null;
string displayName = string.Empty;
ModelMetadata metadata;
foreach (string prop in props)
{
property = type.GetProperty(prop);
if (property == null)
{
continue;
}
metadata = _metadataProvider.GetMetadataForProperty(null, type, property.Name);
if (!string.IsNullOrEmpty(metadata.DisplayName))
{
displayName += metadata.DisplayName;
column.Named(displayName);
}
type = property.PropertyType;
}
#region TODO: 格式化等其他信息 zhangh 2013/06/03
//if (declaringType != null)
//{
// metadata = _metadataProvider.GetMetadataForProperty(null, declaringType, inferredName);
// //if (!string.IsNullOrEmpty(metadata.DisplayName))
// //{
// // displayName += metadata.DisplayName;
// // column.Named(displayName);
// //}
// if (!string.IsNullOrEmpty(metadata.DisplayFormatString))
// {
// column.Format(metadata.DisplayFormatString);
// }
//}
#endregion
}
Add(column);
return(column);
}
