Column.DefaultConstraint Property

2008-12-15

Gets or sets a default value for the column.

命名空间: Microsoft.SqlServer.Management.Smo
程序集: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

语法

声明
Public ReadOnly Property DefaultConstraint As DefaultConstraint

public DefaultConstraint DefaultConstraint { get; }

public:
property DefaultConstraint^ DefaultConstraint {
    DefaultConstraint^ get ();
}

/** @property */
public DefaultConstraint get_DefaultConstraint ()

public function get DefaultConstraint () : DefaultConstraint

属性值

A DefaultConstraint value that specifies a default value for the column.

备注

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.

仅 Microsoft .NET Framework 的 2.0 版本支持此命名空间、类或成员。

示例

How to: Create, Alter, and Remove a Table in Visual Basic .NET

线程安全

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

平台

开发平台

有关支持的平台列表，请参阅安装 SQL Server 2005 的硬件和软件要求。

目标平台