System.ComponentModel.DataAnnotations

Extends the metadata information for a class by adding attributes and property information that is defined in an associated class.

Initializes a new instance of the class by using the specified type.

The type for which the metadata provider is created.

Initializes a new instance of the class by using the specified metadata provider type and associated type.

The type for which the metadata provider is created. The associated type that contains the metadata. The value of is null.

Gets a type descriptor for the specified type and object.

The descriptor that provides metadata for the type. The type of object to retrieve the type descriptor for. An instance of the type.

Specifies that an entity member represents a data relationship, such as a foreign key relationship.

Initializes a new instance of the class.

The name of the association. A comma-separated list of the property names of the key values on the side of the association. A comma-separated list of the property names of the key values on the side of the association.

Gets or sets a value that indicates whether the association member represents a foreign key.

true if the association represents a foreign key; otherwise, false.

Gets the name of the association.

The name of the association.

Gets the property names of the key values on the OtherKey side of the association.

A comma-separated list of the property names that represent the key values on the OtherKey side of the association.

Gets a collection of individual key members that are specified in the property.

A collection of individual key members that are specified in the property.

Gets the property names of the key values on the ThisKey side of the association.

A comma-separated list of the property names that represent the key values on the ThisKey side of the association.

Gets a collection of individual key members that are specified in the property.

A collection of individual key members that are specified in the property.

Specifies whether a type is typically used for binding.

Initializes a new instance of the class.

Gets a value indicating that a type is typically used for binding.

true if the property is typically used for binding; otherwise, false.

Provides an attribute that compares two properties.

Initializes a new instance of the class.

The property to compare with the current property.

Applies formatting to an error message, based on the data field where the error occurred.

The formatted error message. The name of the field that caused the validation failure.

Determines whether a specified object is valid.

true if is valid; otherwise, false. The object to validate. An object that contains information about the validation request.

Gets the property to compare with the current property.

The other property.

Gets the display name of the other property.

The display name of the other property.

Gets a value that indicates whether the attribute requires validation context.

true if the attribute requires validation context; otherwise, false.

Gets a unique identifier for this attribute.

The object that identifies this attribute.

Specifies how data fields are displayed and formatted by ASP.NET Dynamic Data.

Initializes a new instance of the class.

Gets or sets a value that indicates whether the formatting string that is specified by the property is applied to the field value when the data field is in edit mode.

true if the formatting string applies to the field value in edit mode; otherwise, false. The default is false.

Gets or sets a value that indicates whether empty string values ("") are automatically converted to null when the data field is updated in the data source.

true if empty string values are automatically converted to null; otherwise, false. The default is true.

Gets or sets the display format for the field value.

A formatting string that specifies the display format for the value of the data field. The default is an empty string (""), which indicates that no special formatting is applied to the field value.

Gets or sets a value that indicates whether the field should be HTML-encoded.

true if the field should be HTML-encoded; otherwise, false.

Gets or sets the text that is displayed for a field when the field's value is null.

The text that is displayed for a field when the field's value is null. The default is an empty string (""), which indicates that this property is not set.

Validates an email address.

Initializes a new instance of the class.

Determines whether the specified value matches the pattern of a valid email address.

true if the specified value is valid or null; otherwise, false. The value to validate.

Returns the unique identifier for this attribute instance.

This attribuet instance unique identifier.

Denotes one or more properties that uniquely identify an entity.

Initializes a new instance of the class.

Specifies the maximum length of array or string data allowed in a property.

Initializes a new instance of the class.

Initializes a new instance of the class based on the parameter.

The maximum allowable length of array or string data.

Applies formatting to a specified error message.

A localized string to describe the maximum acceptable length. The name to include in the formatted string.

Determines whether a specified object is valid.

true if the value is null, or if the value is less than or equal to the specified maximum length; otherwise, false. The object to validate. Length is zero or less than negative one.

Gets the maximum allowable length of the array or string data.

The maximum allowable length of the array or string data.

Specifies the metadata class to associate with a data model class.

Initializes a new instance of the class.

The metadata class to reference. is null.

Gets the metadata class that is associated with a data-model partial class.

The type value that represents the metadata class.

Specifies that a data field value is a well-formed phone number using a regular expression for phone numbers.

Initializes a new instance of the class.

Determines whether the specified phone number is in a valid phone number format.

true if the phone number is valid; otherwise, false. The value to validate.

Specifies that a data field value in ASP.NET Dynamic Data must match the specified regular expression.

Initializes a new instance of the class.

The regular expression that is used to validate the data field value. is null.

Formats the error message to display if the regular expression validation fails.

The formatted error message. The name of the field that caused the validation failure.

Checks whether the value entered by the user matches the regular expression pattern.

true if validation is successful; otherwise, false. The data field value to validate. The data field value did not match the regular expression pattern.

Gets the regular expression pattern.

The pattern to match.

Specifies that a data field value is required.

Initializes a new instance of the class.

Gets or sets a value that indicates whether an empty string is allowed.

true if an empty string is allowed; otherwise, false. The default value is false.

Checks that the value of the required data field is not empty.

true if validation is successful; otherwise, false. The data field value to validate. The data field value was null.

Specifies whether a class or data table uses scaffolding.

Initializes a new instance of using the property.

The value that specifies whether scaffolding is enabled.

Gets or sets the value that specifies whether scaffolding is enabled.

true, if scaffolding is enabled; otherwise false.

Specifies the minimum and maximum length of characters that are allowed in a data field.

Initializes a new instance of the class by using a specified maximum length.

The maximum length of a string.

Applies formatting to a specified error message.

The formatted error message. The name of the field that caused the validation failure. is negative. -or- is less than .

Determines whether a specified object is valid.

true if the specified object is valid; otherwise, false. The object to validate. is negative.-or- is less than .

Gets or sets the maximum length of a string.

The maximum length a string.

Gets or sets the minimum length of a string.

The minimum length of a string.

Specifies the template or user control that Dynamic Data uses to display a data field.

Initializes a new instance of the class by using a specified user control.

The user control to use to display the data field.

Initializes a new instance of the class using the specified user control and specified presentation layer.

The user control (field template) to use to display the data field. The presentation layer that uses the class. Can be set to "HTML", "Silverlight", "WPF", or "WinForms".

Initializes a new instance of the class by using the specified user control, presentation layer, and control parameters.

The user control (field template) to use to display the data field. The presentation layer that uses the class. Can be set to "HTML", "Silverlight", "WPF", or "WinForms". The object to use to retrieve values from any data sources. is null or it is a constraint key.-or-The value of is not a string.

Gets or sets the object to use to retrieve values from any data source.

A collection of key/value pairs.

Gets a value that indicates whether this instance is equal to the specified object.

true if the specified object is equal to this instance; otherwise, false. The object to compare with this instance, or a null reference.

Gets the hash code for the current instance of the attribute.

The attribute instance hash code.

Gets or sets the presentation layer that uses the class.

The presentation layer that is used by this class.

Gets the unique identifier for the attribute.

The unique identifier for the attribute.

Gets or sets the name of the field template to use to display the data field.

The name of the field template that displays the data field.

Serves as the base class for all validation attributes.

The and properties for localized error message are set at the same time that the non-localized property error message is set.

Initializes a new instance of the class.

Initializes a new instance of the class by using the function that enables access to validation resources.

The function that enables access to validation resources. is null.

Initializes a new instance of the class by using the error message to associate with a validation control.

The error message to associate with a validation control.

Gets or sets an error message to associate with a validation control if validation fails.

The error message that is associated with the validation control.

Gets or sets the error message resource name to use in order to look up the property value if validation fails.

The error message resource that is associated with a validation control.

Gets or sets the resource type to use for error-message lookup if validation fails.

The type of error message that is associated with a validation control.

Gets the localized validation error message.

The localized validation error message.

Applies formatting to an error message, based on the data field where the error occurred.

An instance of the formatted error message. The name to include in the formatted message.

Checks whether the specified value is valid with respect to the current validation attribute.

An instance of the class. The value to validate. The context information about the validation operation.

Determines whether the specified value of the object is valid.

true if the specified value is valid; otherwise, false. The value of the object to validate.

Validates the specified value with respect to the current validation attribute.

An instance of the class. The value to validate. The context information about the validation operation.

Gets a value that indicates whether the attribute requires validation context.

true if the attribute requires validation context; otherwise, false.

Validates the specified object.

The object to validate. The object that describes the context where the validation checks are performed. This parameter cannot be null. Validation failed.

Validates the specified object.

The value of the object to validate. The name to include in the error message. is not valid.

Gets the validation services container.

The validation services container.

Initializes a new instance of the class using serialized data.

The object that holds the serialized data. Context information about the source or destination of the serialized object.

Represents a container for the results of a validation request.

Initializes a new instance of the class by using a object.

The validation result object.

Initializes a new instance of the class by using an error message.

The error message.

Initializes a new instance of the class by using an error message and a list of members that have validation errors.

The error message. The list of member names that have validation errors.

Gets the error message for the validation.

The error message for the validation.

Gets the collection of member names that indicate which fields have validation errors.

The collection of member names that indicate which fields have validation errors.

Represents the success of the validation (true if validation was successful; otherwise, false).

Returns a string representation of the current validation result.

The current validation result.

Gets information about the exception and adds it to the object

The object that holds the serialized object data for the exception that occurred. Context information about the source or destination of the exception.

Represents the database column that a property is mapped to.

Initializes a new instance of the class.

Initializes a new instance of the class.

The name of the column the property is mapped to.

Gets the name of the column the property is mapped to.

The name of the column the property is mapped to.

Gets or sets the zero-based order of the column the property is mapped to.

The order of the column.

Gets or sets the database provider specific data type of the column the property is mapped to.

The database provider specific data type of the column the property is mapped to.

Denotes that the class is a complex type. Complex types are non-scalar properties of entity types that enable scalar properties to be organized within entities. Complex types do not have keys and cannot be managed by the Entity Framework apart from the parent object.

Initializes a new instance of the class.

Specifies the database table that a class is mapped to.

Initializes a new instance of the class using the specified name of the table.

The name of the table the class is mapped to.

Gets the name of the table the class is mapped to.

The name of the table the class is mapped to.

Gets or sets the schema of the table the class is mapped to.

The schema of the table the class is mapped to.