Initializes a new instance of the DataValue class. Default constructor, which creates a null value.

Initializes a new instance of the DataValue class. Creates a new instance with a valid value.

Initializes a new instance of the DataValue class. Creates a new instance with a valid value.

Initializes a new instance of the DataValue class. Creates a new, possibly invalid instance.

Sets this DataValue instance equal to another DataValue instance.

Creates a copy of this instance.

Compares two DataValue instances for equality, using the System.Object implementation.

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.

Gets a hash code for this instance, using the System.Object implementation.

Gets the Type of the current instance.

Creates a shallow copy of the current Object.

The class can be used as a flyweight IDataValueProducer, in which case a single instance is reused.

Makes this DataValue instance represents a null value. That is, an invalid value with a null data error. After the method call, HasValidValue will return false, IsNullValue will return true, and HasDataError will return false. The ValidValue property will be null.

Gets a string representation of this DataValue instance, intended for human readers and debugging purposes.

Gets or sets the data error contained in this DataValue instance. The getter returns null if HasDataError is false. After invoking the setter HasDataError will be true, HasValidValue and IsNullValue will be false, and ValidValue will return a default value.

Gets the data type corresponding to the runtime values that can be stored in this value container. The data type is fixed, since a data value cannot be used for values of varying types.

Gets or sets the error associated with the contained value.

Gets a value indicating whether this DataValue (i) is invalid and (ii) has an associated data error. If HasDataError is true, then HasValidValue and IsNullValue are both false.

Gets a value indicating whether this DataValue contains a valid value. If HasValidValue is false, then either IsNullValue is true or HasDataError is true, but not both. If HasValidValue is true, the IsNullValue and HasDataError are both false.

Gets the row index, if applicable.

Gets a value indicating whether this instance represents an error, such as a numeric overflow in a calculation.

Gets a value indicating whether this DataValue instance represents a null value, or, more precisely, an invalid value with a null data error.

Gets or sets a value indicating whether there is a valid value.

Gets or sets the valid value contained in this DataValue instance. A default value is returned if there is no valid value. After setting a valid value HasValidValue will be true, HasDataError and IsNullValue will be false, and DataError will return null.

Gets or sets the contained value. Note that unboxed values are used, unlike the property with the same name in the base class.