ModelStateDictionary Class

Article
2011-02-21

Represents the state of an attempt to bind a posted form to an action method, which includes validation information.

Inheritance Hierarchy

System.Object
System.Web.Mvc.ModelStateDictionary

Namespace: System.Web.Mvc
Assembly: System.Web.Mvc (in System.Web.Mvc.dll)

Syntax

'Declaration
<SerializableAttribute> _
Public Class ModelStateDictionary _
    Implements IDictionary(Of String, ModelState),  _
    ICollection(Of KeyValuePair(Of String, ModelState)), IEnumerable(Of KeyValuePair(Of String, ModelState)),  _
    IEnumerable

[SerializableAttribute]
public class ModelStateDictionary : IDictionary<string, ModelState>, 
    ICollection<KeyValuePair<string, ModelState>>, IEnumerable<KeyValuePair<string, ModelState>>, 
    IEnumerable

[SerializableAttribute]
public ref class ModelStateDictionary : IDictionary<String^, ModelState^>, 
    ICollection<KeyValuePair<String^, ModelState^>>, IEnumerable<KeyValuePair<String^, ModelState^>>, 
    IEnumerable

The ModelStateDictionary type exposes the following members.

Constructors

	Name	Description
	ModelStateDictionary()	Initializes a new instance of the ModelStateDictionary class.
	ModelStateDictionary(ModelStateDictionary)	Initializes a new instance of the ModelStateDictionary class by using values that are copied from the specified model-state dictionary.

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Properties

	Name	Description
	Count	Gets the number of key/value pairs in the collection.
	IsReadOnly	Gets a value that indicates whether the collection is read-only.
	IsValid	Gets a value that indicates whether this instance of the model-state dictionary is valid.
	Item	Gets or sets the value that is associated with the specified key.
	Keys	Gets a collection that contains the keys in the dictionary.
	Values	Gets a collection that contains the values in the dictionary.

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Methods

	Name	Description
	Add(KeyValuePair<String, ModelState>)	Adds the specified item to the model-state dictionary.
	Add(String, ModelState)	Adds an element that has the specified key and value to the model-state dictionary.
	AddModelError(String, Exception)	Adds the specified model error to the errors collection for the model-state dictionary that is associated with the specified key.
	AddModelError(String, String)	Adds the specified error message to the errors collection for the model-state dictionary that is associated with the specified key.
	Clear	Removes all items from the model-state dictionary.
	Contains	Determines whether the model-state dictionary contains a specific value.
	ContainsKey	Determines whether the model-state dictionary contains the specified key.
	CopyTo	Copies the elements of the model-state dictionary to an array, starting at a specified index.
	Equals	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
	GetEnumerator	Returns an enumerator that can be used to iterate through the collection.
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	IsValidField	Determines whether there are any ModelError objects that are associated with or prefixed with the specified key.
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	Merge	Copies the values from the specified ModelStateDictionary object into this dictionary, overwriting existing values if keys are the same.
	Remove(KeyValuePair<String, ModelState>)	Removes the first occurrence of the specified object from the model-state dictionary.
	Remove(String)	Removes the element that has the specified key from the model-state dictionary.
	SetModelValue	Sets the value for the specified key by using the specified value provider dictionary.
	ToString	Returns a string that represents the current object. (Inherited from Object.)
	TryGetValue	Attempts to gets the value that is associated with the specified key.

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Explicit Interface Implementations

	Name	Description
	IEnumerable.GetEnumerator	Returns an enumerator that can be used to iterate through the collection.

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Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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