SystemDataType 类
The SystemDataType object represents a supported system data type. The SystemDataTypeCollection represents all the supported system data types.
继承层次结构
System.Object
Microsoft.SqlServer.Management.Smo.SmoObjectBase
Microsoft.SqlServer.Management.Smo.SqlSmoObject
Microsoft.SqlServer.Management.Smo.NamedSmoObject
Microsoft.SqlServer.Management.Smo.SystemDataType
命名空间: Microsoft.SqlServer.Management.Smo
程序集: Microsoft.SqlServer.Smo(在 Microsoft.SqlServer.Smo.dll 中)
语法
声明
Public NotInheritable Class SystemDataType _
Inherits NamedSmoObject _
Implements ISfcSupportsDesignMode
用法
Dim instance As SystemDataType
public sealed class SystemDataType : NamedSmoObject,
ISfcSupportsDesignMode
public ref class SystemDataType sealed : public NamedSmoObject,
ISfcSupportsDesignMode
[<SealedAttribute>]
type SystemDataType =
class
inherit NamedSmoObject
interface ISfcSupportsDesignMode
end
public final class SystemDataType extends NamedSmoObject implements ISfcSupportsDesignMode
SystemDataType 类型公开以下成员。
属性
名称 | 说明 | |
---|---|---|
AllowIdentity | Gets the Boolean property that specifies whether the system data type allows an identity value. | |
AllowLength | Gets the Boolean property that specifies whether the system data type allows a length specification. | |
AllowNulls | Gets the Boolean property that specifies whether the system data type allows null values. | |
Collation | Gets the String value that specifies the collation for the system data type. | |
ID | Gets the ID value that uniquely identifies the system data type. | |
MaximumLength | Gets the maximum length of the system data type. | |
Name | Gets or sets a String value that specifies the name of the system data type. (覆盖 NamedSmoObject.Name。) | |
NumericPrecision | Gets the numeric precision of the system data type. | |
NumericScale | Gets the numeric scale of the system data type. | |
Parent | Gets the Server object that is the parent of the SystemDataType object. | |
Properties | Gets a collection of Property objects that represent the object properties. (从 SqlSmoObject 继承。) | |
State | Gets the state of the referenced object. (从 SmoObjectBase 继承。) | |
Urn | Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. (从 SqlSmoObject 继承。) | |
UserData | Gets or sets user-defined data associated with the referenced object. (从 SmoObjectBase 继承。) |
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方法
名称 | 说明 | |
---|---|---|
Discover | Discovers a list of type Object. (从 SqlSmoObject 继承。) | |
Equals | (从 Object 继承。) | |
FormatSqlVariant | Formats an object as SqlVariant type. (从 SqlSmoObject 继承。) | |
GetContextDB | Gets the context database that is associated with this object. (从 SqlSmoObject 继承。) | |
GetDBName | Gets the database name that is associated with the object. (从 SqlSmoObject 继承。) | |
GetHashCode | (从 Object 继承。) | |
GetPropValue | Gets a property value of the SqlSmoObject object. (从 SqlSmoObject 继承。) | |
GetPropValueOptional | Gets a property value of the SqlSmoObject object. (从 SqlSmoObject 继承。) | |
GetPropValueOptionalAllowNull | Gets a property value of the SqlSmoObject object. (从 SqlSmoObject 继承。) | |
GetServerObject | Gets the server of the SqlSmoObject object. (从 SqlSmoObject 继承。) | |
GetType | (从 Object 继承。) | |
Initialize() | Initializes the object and forces the properties be loaded. (从 SqlSmoObject 继承。) | |
Initialize(Boolean) | Initializes the object and forces the properties be loaded. (从 SqlSmoObject 继承。) | |
IsObjectInitialized | Verifies whether the object has been initialized. (从 SqlSmoObject 继承。) | |
IsObjectInSpace | Verifies whether the object is isolated or connected to the instance of SQL Server. (从 SqlSmoObject 继承。) | |
Refresh | Refreshes the object and retrieves properties when the object is next accessed. (从 SqlSmoObject 继承。) | |
SetParentImpl | Sets the parent of the SqlSmoObject to the newParent parameter. (从 SqlSmoObject 继承。) | |
ToString | Returns a String that represents the referenced object. (从 SqlSmoObject 继承。) | |
Validate | Validates the state of an object. (从 SmoObjectBase 继承。) |
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事件
名称 | 说明 | |
---|---|---|
PropertyChanged | Represents the event that occurs when a property is changed. (从 SqlSmoObject 继承。) | |
PropertyMetadataChanged | Represents the event that occurs when property metadata changes. (从 SqlSmoObject 继承。) |
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显式接口实现
名称 | 说明 | |
---|---|---|
IAlienObject.Discover | Discovers any dependencies. 不要在您的代码中直接引用此成员。它支持 SQL Server 基础结构。 (从 SqlSmoObject 继承。) | |
IAlienObject.GetDomainRoot | Returns the root of the domain. (从 SqlSmoObject 继承。) | |
IAlienObject.GetParent | Gets the parent of this object. 不要在您的代码中直接引用此成员。它支持 SQL Server 基础结构。 (从 SqlSmoObject 继承。) | |
IAlienObject.GetPropertyType | Gets the type of the specified property. (从 SqlSmoObject 继承。) | |
IAlienObject.GetPropertyValue | Gets the value of the specified property. (从 SqlSmoObject 继承。) | |
IAlienObject.GetUrn | Gets the Unified Resource Name (URN) of the object. 不要在您的代码中直接引用此成员。它支持 SQL Server 基础结构。 (从 SqlSmoObject 继承。) | |
IAlienObject.Resolve | Gets the instance that contains the information about the object from the Unified Resource Name (URN) of the object. (从 SqlSmoObject 继承。) | |
IAlienObject.SetObjectState | Sets the object state to the specified SfcObjectState value. (从 SqlSmoObject 继承。) | |
IAlienObject.SetPropertyValue | Sets the property value. (从 SqlSmoObject 继承。) | |
ISfcPropertyProvider.GetPropertySet | Gets the interface reference to the set of properties of this object. (从 SqlSmoObject 继承。) | |
ISfcSupportsDesignMode.IsDesignMode | Gets a Boolean value that specifies whether the data type supports design mode. |
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示例
线程安全
此类型的任何公共 static(在 Visual Basic 中为 Shared) 成员都是线程安全的。不保证所有实例成员都是线程安全的。
请参阅
参考
Microsoft.SqlServer.Management.Smo 命名空间