public ModelValidatingEventArgs(ModelBindingExecutionContext modelBindingExecutionContext, ModelValidationNode parentNode) {
if (modelBindingExecutionContext == null) {
throw new ArgumentNullException("modelBindingExecutionContext");
}
ModelBindingExecutionContext = modelBindingExecutionContext;
ParentNode = parentNode;
}
public ComplexModelResult(object model, ModelValidationNode validationNode) {
if (validationNode == null) {
throw new ArgumentNullException("validationNode");
}
Model = model;
ValidationNode = validationNode;
}
public void CombineWith(ModelValidationNode otherNode) {
if (otherNode != null && !otherNode.SuppressValidation) {
Validated += otherNode.Validated;
Validating += otherNode.Validating;
foreach (ModelValidationNode childNode in otherNode.ChildNodes) {
ChildNodes.Add(childNode);
}
}
}
public ModelValidatedEventArgs(ModelBindingExecutionContext modelBindingExecutionContext, ModelValidationNode parentNode)
{
if (modelBindingExecutionContext == null)
{
throw new ArgumentNullException("modelBindingExecutionContext");
}
ModelBindingExecutionContext = modelBindingExecutionContext;
ParentNode = parentNode;
}
public ComplexModelResult(object model, ModelValidationNode validationNode)
{
if (validationNode == null)
{
throw new ArgumentNullException("validationNode");
}
Model = model;
ValidationNode = validationNode;
}
public void CombineWith(ModelValidationNode otherNode)
{
if (otherNode != null && !otherNode.SuppressValidation)
{
Validated += otherNode.Validated;
Validating += otherNode.Validating;
foreach (ModelValidationNode childNode in otherNode.ChildNodes)
{
ChildNodes.Add(childNode);
}
}
}
private object TryConvertContainerToMetadataType(ModelValidationNode parentNode) {
if (parentNode != null) {
object containerInstance = parentNode.ModelMetadata.Model;
if (containerInstance != null) {
Type expectedContainerType = ModelMetadata.ContainerType;
if (expectedContainerType != null) {
if (expectedContainerType.IsInstanceOfType(containerInstance)) {
return containerInstance;
}
}
}
}
return null;
}
// Called when the property setter null check failed, allows us to add our own error message to ModelState.
internal static EventHandler <ModelValidatedEventArgs> CreateNullCheckFailedHandler(ModelBindingExecutionContext modelBindingExecutionContext, ModelMetadata modelMetadata, object incomingValue)
{
return((sender, e) =>
{
ModelValidationNode validationNode = (ModelValidationNode)sender;
ModelStateDictionary modelState = e.ModelBindingExecutionContext.ModelState;
if (modelState.IsValidField(validationNode.ModelStateKey))
{
string errorMessage = ModelBinderErrorMessageProviders.ValueRequiredErrorMessageProvider(modelBindingExecutionContext, modelMetadata, incomingValue);
if (errorMessage != null)
{
modelState.AddModelError(validationNode.ModelStateKey, errorMessage);
}
}
});
}
private object TryConvertContainerToMetadataType(ModelValidationNode parentNode)
{
if (parentNode != null)
{
object containerInstance = parentNode.ModelMetadata.Model;
if (containerInstance != null)
{
Type expectedContainerType = ModelMetadata.ContainerType;
if (expectedContainerType != null)
{
if (expectedContainerType.IsInstanceOfType(containerInstance))
{
return(containerInstance);
}
}
}
}
return(null);
}
public void Validate(ModelBindingExecutionContext modelBindingExecutionContext, ModelValidationNode parentNode) {
if (modelBindingExecutionContext == null) {
throw new ArgumentNullException("modelBindingExecutionContext");
}
if (SuppressValidation) {
// no-op
return;
}
// pre-validation steps
ModelValidatingEventArgs eValidating = new ModelValidatingEventArgs(modelBindingExecutionContext, parentNode);
OnValidating(eValidating);
if (eValidating.Cancel) {
return;
}
ValidateChildren(modelBindingExecutionContext);
ValidateThis(modelBindingExecutionContext, parentNode);
// post-validation steps
ModelValidatedEventArgs eValidated = new ModelValidatedEventArgs(modelBindingExecutionContext, parentNode);
OnValidated(eValidated);
}
private void ValidateThis(ModelBindingExecutionContext modelBindingExecutionContext, ModelValidationNode parentNode) {
ModelStateDictionary modelState = modelBindingExecutionContext.ModelState;
if (!modelState.IsValidField(ModelStateKey)) {
return; // short-circuit
}
object container = TryConvertContainerToMetadataType(parentNode);
foreach (ModelValidator validator in ModelMetadata.GetValidators(modelBindingExecutionContext)) {
foreach (ModelValidationResult validationResult in validator.Validate(container)) {
string trueModelStateKey = ModelBinderUtil.CreatePropertyModelName(ModelStateKey, validationResult.MemberName);
modelState.AddModelError(trueModelStateKey, validationResult.Message);
}
}
}
private void ValidateThis(ModelBindingExecutionContext modelBindingExecutionContext, ModelValidationNode parentNode)
{
ModelStateDictionary modelState = modelBindingExecutionContext.ModelState;
if (!modelState.IsValidField(ModelStateKey))
{
return; // short-circuit
}
object container = TryConvertContainerToMetadataType(parentNode);
foreach (ModelValidator validator in ModelMetadata.GetValidators(modelBindingExecutionContext))
{
foreach (ModelValidationResult validationResult in validator.Validate(container))
{
string trueModelStateKey = ModelBinderUtil.CreatePropertyModelName(ModelStateKey, validationResult.MemberName);
modelState.AddModelError(trueModelStateKey, validationResult.Message);
}
}
}
public void Validate(ModelBindingExecutionContext modelBindingExecutionContext, ModelValidationNode parentNode)
{
if (modelBindingExecutionContext == null)
{
throw new ArgumentNullException("modelBindingExecutionContext");
}
if (SuppressValidation)
{
// no-op
return;
}
// pre-validation steps
ModelValidatingEventArgs eValidating = new ModelValidatingEventArgs(modelBindingExecutionContext, parentNode);
OnValidating(eValidating);
if (eValidating.Cancel)
{
return;
}
ValidateChildren(modelBindingExecutionContext);
ValidateThis(modelBindingExecutionContext, parentNode);
// post-validation steps
ModelValidatedEventArgs eValidated = new ModelValidatedEventArgs(modelBindingExecutionContext, parentNode);
OnValidated(eValidated);
}
