DataObjectFieldAttribute Constructor (Boolean, Boolean, Boolean, Int32)

 

Initializes a new instance of the DataObjectFieldAttribute class and indicates whether the field is the primary key for the data row, whether it is a database identity field, and whether it can be null and sets the length of the field.

Namespace:   System.ComponentModel
Assembly:  System (in System.dll)

public DataObjectFieldAttribute(
	bool primaryKey,
	bool isIdentity,
	bool isNullable,
	int length
)

Parameters

primaryKey
Type: System.Boolean

true to indicate that the field is in the primary key of the data row; otherwise, false.

isIdentity
Type: System.Boolean

true to indicate that the field is an identity field that uniquely identifies the data row; otherwise, false.

isNullable
Type: System.Boolean

true to indicate that the field can be null in the data store; otherwise, false.

length
Type: System.Int32

The length of the field in bytes.

.NET Framework
Available since 2.0
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