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SubscriptionField.Type Property

  • Artigo

Specifies the Microsoft SQL Server data type of the subscription field.

Namespace: Microsoft.SqlServer.Management.Nmo
Assembly: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

Syntax

'Declaration
Public Property Type As String

public string Type { get; set; }

public:
property String^ Type {
    String^ get ();
    void set (String^ value);
}

/** @property */
public String get_Type ()

/** @property */
public void set_Type (String value)

public function get Type () : String

public function set Type (value : String)

Property Value

A String, between 1 and 255 characters in length, that specifies the SQL Server data type.

Remarks

Field types must conform to SQL Server data types. The following data types are supported by Notification Services:

bigint

float

real

tinyint

binary

int

smalldatetime

uniqueidentifier

bit

money

smallint

varbinary

char

nchar

smallmoney

varchar

datetime

nvarchar

sql_variant

xml

decimal

numeric

 

 

The text, ntext, and image data types are not supported because they cannot be used as values for parameters and variables in stored procedures. In addition, the timestamp data type is not supported. For more information about SQL Server data types, see Data Types (Database Engine).

If using the xml data type with the XSLT content formatter, the content formatter might attempt to transform the XML data. To preserve the XML markup, set the content formatter's DisableEscaping argument to false.

If you modify a field type, updating the application re-creates the subscription class to which it corresponds. Notification Services renames the existing subscription tables by appending "Old" to the table name and then creates new tables. Existing subscription table indexes are left unchanged.

If you want to transfer data between the old and new subscription tables, it must be done manually. For more information, see Updating an Application.

Example

The following examples show how to define a subscription field with the data type nvarchar(10) and then add it to the subscription schema:

// Define a SubscriberLocale field that cannot be NULL
// Add the field to the end of the field collection
SubscriptionField subLocale = 
    new SubscriptionField(flightSubscriptions, "SubscriberLocale");
subLocale.Type = "nvarchar(10)";
subLocale.TypeModifier = "not null";
flightSubscriptions.SubscriptionFields.Add(subLocale);

' Define a SubscriberLocale field that cannot be NULL
' Add the field to the end of the field collection
Dim subLocale As SubscriptionField = _
    New SubscriptionField(flightSubscriptions, _
    "SubscriberLocale")
subLocale.Type = "nvarchar(10)"
subLocale.TypeModifier = "not null"
flightSubscriptions.SubscriptionFields.Add(subLocale)

Thread Safety

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.

Platforms

Development Platforms

For a list of the supported platforms, see Hardware and Software Requirements for Installing SQL Server 2005.

Target Platforms

For a list of the supported platforms, see Hardware and Software Requirements for Installing SQL Server 2005.

See Also

Reference

SubscriptionField Class
SubscriptionField Members
Microsoft.SqlServer.Management.Nmo Namespace

Other Resources

FieldType Element for SubscriptionClass/Schema/Field (ADF)
Defining the Subscription Schema