CustomFieldDefinition 构造函数 (UInt32, Type)

初始化 CustomFieldDefinition 类的一个包含字段 ID 和字段类型的新实例。

命名空间: Microsoft.Synchronization.SimpleProviders
程序集: Microsoft.Synchronization.SimpleProviders（在 microsoft.synchronization.simpleproviders.dll 中）

语法

声明
Public Sub New ( _
    fieldId As UInteger, _
    fieldType As Type _
)
用法
Dim fieldId As UInteger
Dim fieldType As Type

Dim instance As New CustomFieldDefinition(fieldId, fieldType)

public CustomFieldDefinition (
    uint fieldId,
    Type fieldType
)

public:
CustomFieldDefinition (
    unsigned int fieldId, 
    Type^ fieldType
)

public CustomFieldDefinition (
    UInt32 fieldId, 
    Type fieldType
)

public function CustomFieldDefinition (
    fieldId : uint, 
    fieldType : Type
)

参数

• fieldId
  字段的整数 ID。

• fieldType
  字段的数据类型。有关支持类型列表，请参阅 CustomFieldDefinition。

异常

示例

下面的代码示例提供了 ItemMetadataSchema 对象的输入。示例代码中的常量为项存储区中的每列定义一个整数值。当为 ItemMetadataSchema 对象创建自定义字段定义和标识值时，将使用这些值。若要在完整应用程序的上下文中查看此代码，请参见"Sync101 using Simple Sync Provider" 应用程序（可从 Sync Framework SDK 和 Code Gallery 获得）。

public const uint CUSTOM_FIELD_ID = 1;
public const uint CUSTOM_FIELD_TIMESTAMP = 2;

public override ItemMetadataSchema MetadataSchema
{
    get
    {
        CustomFieldDefinition[] customFields = new CustomFieldDefinition[2];
        customFields[0] = new CustomFieldDefinition(CUSTOM_FIELD_ID, typeof(ulong));
        customFields[1] = new CustomFieldDefinition(CUSTOM_FIELD_TIMESTAMP, typeof(ulong));

        IdentityRule[] identityRule = new IdentityRule[1];
        identityRule[0] = new IdentityRule(new uint[] { CUSTOM_FIELD_ID });

        return new ItemMetadataSchema(customFields, identityRule);
    }
}

Public Const CUSTOM_FIELD_ID As UInteger = 1
Public Const CUSTOM_FIELD_TIMESTAMP As UInteger = 2
Public Overrides ReadOnly Property MetadataSchema() As ItemMetadataSchema
    Get
        Dim customFields As CustomFieldDefinition() = New CustomFieldDefinition(1) {}
        customFields(0) = New CustomFieldDefinition(CUSTOM_FIELD_ID, GetType(ULong))
        customFields(1) = New CustomFieldDefinition(CUSTOM_FIELD_TIMESTAMP, GetType(ULong))

        Dim identityRule As IdentityRule() = New IdentityRule(0) {}
        identityRule(0) = New IdentityRule(New UInteger() {CUSTOM_FIELD_ID})

        Return New ItemMetadataSchema(customFields, identityRule)
    End Get
End Property

请参阅

参考

CustomFieldDefinition 类
CustomFieldDefinition 成员
Microsoft.Synchronization.SimpleProviders 命名空间