DefaultConstraint 属性
获取列的默认值。
命名空间: Microsoft.SqlServer.Management.Smo
程序集: Microsoft.SqlServer.Smo(在 Microsoft.SqlServer.Smo.dll 中)
语法
声明
<SfcObjectAttribute(SfcObjectRelationship.ChildObject, SfcObjectCardinality.ZeroToOne, SfcObjectFlags.Design)> _
Public Property DefaultConstraint As DefaultConstraint
Get
Friend Set
用法
Dim instance As Column
Dim value As DefaultConstraint
value = instance.DefaultConstraint
[SfcObjectAttribute(SfcObjectRelationship.ChildObject, SfcObjectCardinality.ZeroToOne, SfcObjectFlags.Design)]
public DefaultConstraint DefaultConstraint { get; internal set; }
[SfcObjectAttribute(SfcObjectRelationship::ChildObject, SfcObjectCardinality::ZeroToOne, SfcObjectFlags::Design)]
public:
property DefaultConstraint^ DefaultConstraint {
DefaultConstraint^ get ();
internal: void set (DefaultConstraint^ value);
}
[<SfcObjectAttribute(SfcObjectRelationship.ChildObject, SfcObjectCardinality.ZeroToOne, SfcObjectFlags.Design)>]
member DefaultConstraint : DefaultConstraint with get, internal set
function get DefaultConstraint () : DefaultConstraint
internal function set DefaultConstraint (value : DefaultConstraint)
属性值
类型:Microsoft.SqlServer.Management.Smo. . :: . .DefaultConstraint
一个指定列的默认值的 DefaultConstraint 值。
注释
The DefaultConstraint property specifies a default text value for the column. When no value is supplied by the user, the default text value is inserted into a row in the table. The text value can be set by setting the Text property of the DefaultConstraint object that is referenced by the DefaultConstraint property.