使用屬性中繼資料

 

發佈日期： 2017年1月

適用對象： Dynamics 365 (online)、Dynamics 365 (on-premises)、Dynamics CRM 2016、Dynamics CRM Online

本主題使用範例：使用屬性中繼資料中的程式碼片段，說明如何在使用屬性時執行一般工作。

本主題內容

建立屬性

擷取屬性

更新屬性

建立查詢屬性

建立客戶查詢屬性

更新狀態值

建立使用全域選項組的挑選清單

插入新狀態值

在本機選項組中插入新選項

變更選項在本機選項組中的順序

刪除屬性

建立屬性

您可以藉由定義其中一個 AttributeMetadata 類型，然後將它傳遞至 CreateAttributeRequest 訊息的方式建立屬性。

下列範例會針對多種不同類型的屬性定義 AttributeMetadata，並將它們新增至 List<AttributeMetadata>。 在程式碼的結尾會將屬性定義傳遞至 CreateAttributeRequest 類別的執行個體，且該屬性是使用 Execute 方法建立。

下列範例會將目前的自訂首碼假設為 'new'，因為那是組織解決方案發行者的預設自訂首碼。 您應該針對解決方案發行者使用對於您的解決方案內容而言合理的自訂首碼。

// Create storage for new attributes being created
addedAttributes = new List<AttributeMetadata>();

// Create a boolean attribute
BooleanAttributeMetadata boolAttribute = new BooleanAttributeMetadata
{
    // Set base properties
    SchemaName = "new_boolean",
    DisplayName = new Label("Sample Boolean", _languageCode),
    RequiredLevel = new AttributeRequiredLevelManagedProperty(AttributeRequiredLevel.None),
    Description = new Label("Boolean Attribute", _languageCode),
    // Set extended properties
    OptionSet = new BooleanOptionSetMetadata(
        new OptionMetadata(new Label("True", _languageCode), 1),
        new OptionMetadata(new Label("False", _languageCode), 0)
        )
};

// Add to list
addedAttributes.Add(boolAttribute);

// Create a date time attribute
DateTimeAttributeMetadata dtAttribute = new DateTimeAttributeMetadata
{
    // Set base properties
    SchemaName = "new_datetime",
    DisplayName = new Label("Sample DateTime", _languageCode),
    RequiredLevel = new AttributeRequiredLevelManagedProperty(AttributeRequiredLevel.None),
    Description = new Label("DateTime Attribute", _languageCode),
    // Set extended properties
    Format = DateTimeFormat.DateOnly,
    ImeMode = ImeMode.Disabled
};

// Add to list
addedAttributes.Add(dtAttribute);

// Create a decimal attribute   
DecimalAttributeMetadata decimalAttribute = new DecimalAttributeMetadata
{
    // Set base properties
    SchemaName = "new_decimal",
    DisplayName = new Label("Sample Decimal", _languageCode),
    RequiredLevel = new AttributeRequiredLevelManagedProperty(AttributeRequiredLevel.None),
    Description = new Label("Decimal Attribute", _languageCode),
    // Set extended properties
    MaxValue = 100,
    MinValue = 0,
    Precision = 1
};

// Add to list
addedAttributes.Add(decimalAttribute);

// Create a integer attribute   
IntegerAttributeMetadata integerAttribute = new IntegerAttributeMetadata
{
    // Set base properties
    SchemaName = "new_integer",
    DisplayName = new Label("Sample Integer", _languageCode),
    RequiredLevel = new AttributeRequiredLevelManagedProperty(AttributeRequiredLevel.None),
    Description = new Label("Integer Attribute", _languageCode),
    // Set extended properties
    Format = IntegerFormat.None,
    MaxValue = 100,
    MinValue = 0
};

// Add to list
addedAttributes.Add(integerAttribute);

// Create a memo attribute 
MemoAttributeMetadata memoAttribute = new MemoAttributeMetadata
{
    // Set base properties
    SchemaName = "new_memo",
    DisplayName = new Label("Sample Memo", _languageCode),
    RequiredLevel = new AttributeRequiredLevelManagedProperty(AttributeRequiredLevel.None),
    Description = new Label("Memo Attribute", _languageCode),
    // Set extended properties
    Format = StringFormat.TextArea,
    ImeMode = ImeMode.Disabled,
    MaxLength = 500
};

// Add to list
addedAttributes.Add(memoAttribute);

// Create a money attribute 
MoneyAttributeMetadata moneyAttribute = new MoneyAttributeMetadata
{
    // Set base properties
    SchemaName = "new_money",
    DisplayName = new Label("Money Picklist", _languageCode),
    RequiredLevel = new AttributeRequiredLevelManagedProperty(AttributeRequiredLevel.None),
    Description = new Label("Money Attribue", _languageCode),
    // Set extended properties
    MaxValue = 1000.00,
    MinValue = 0.00,
    Precision = 1,
    PrecisionSource = 1,
    ImeMode = ImeMode.Disabled
};

// Add to list
addedAttributes.Add(moneyAttribute);

// Create a picklist attribute  
PicklistAttributeMetadata pickListAttribute =
    new PicklistAttributeMetadata
{
    // Set base properties
    SchemaName = "new_picklist",
    DisplayName = new Label("Sample Picklist", _languageCode),
    RequiredLevel = new AttributeRequiredLevelManagedProperty(AttributeRequiredLevel.None),
    Description = new Label("Picklist Attribute", _languageCode),
    // Set extended properties
    // Build local picklist options
    OptionSet = new OptionSetMetadata
        {
            IsGlobal = false,
            OptionSetType = OptionSetType.Picklist,
            Options = 
        {
            new OptionMetadata(
                new Label("Created", _languageCode), null),
            new OptionMetadata(
                new Label("Updated", _languageCode), null),
            new OptionMetadata(
                new Label("Deleted", _languageCode), null)
        }
        }
};

// Add to list
addedAttributes.Add(pickListAttribute);

// Create a string attribute
StringAttributeMetadata stringAttribute = new StringAttributeMetadata
{
    // Set base properties
    SchemaName = "new_string",
    DisplayName = new Label("Sample String", _languageCode),
    RequiredLevel = new AttributeRequiredLevelManagedProperty(AttributeRequiredLevel.None),
    Description = new Label("String Attribute", _languageCode),
    // Set extended properties
    MaxLength = 100
};

// Add to list
addedAttributes.Add(stringAttribute);

// NOTE: LookupAttributeMetadata cannot be created outside the context of a relationship.
// Refer to the WorkWithRelationships.cs reference SDK sample for an example of this attribute type.

// NOTE: StateAttributeMetadata and StatusAttributeMetadata cannot be created via the SDK.

foreach (AttributeMetadata anAttribute in addedAttributes)
{
    // Create the request.
    CreateAttributeRequest createAttributeRequest = new CreateAttributeRequest
    {
        EntityName = Contact.EntityLogicalName,
        Attribute = anAttribute
    };

    // Execute the request.
    _serviceProxy.Execute(createAttributeRequest);

    Console.WriteLine("Created the attribute {0}.", anAttribute.SchemaName);
}

擷取屬性

這個範例將說明如何使用 RetrieveAttributeRequest 擷取屬性的 AttributeMetadata。 這個範例會從 建立屬性中建立的 Contact 實體，針對稱為 'new_string' 的自訂 StringAttributeMetadata 屬性擷取中繼資料。

備註

因為 RetrieveAsIfPublished 為 true，所以這個要求會傳回這個屬性目前未發行的定義。 如果您要建立屬性編輯器，而且想要擷取屬性的未發行定義，就可能會使用這個要求。 否則，您應該不要指定 RetrieveAsIfPublished。其他資訊：擷取未發行的中繼資料

// Create the request
RetrieveAttributeRequest attributeRequest = new RetrieveAttributeRequest
{
    EntityLogicalName = Contact.EntityLogicalName,
    LogicalName = "new_string",
    RetrieveAsIfPublished = true
};

// Execute the request
RetrieveAttributeResponse attributeResponse =
    (RetrieveAttributeResponse)_serviceProxy.Execute(attributeRequest);

Console.WriteLine("Retrieved the attribute {0}.",
    attributeResponse.AttributeMetadata.SchemaName);

更新屬性

這個範例將說明如何更新屬性。 這個範例會使用 UpdateAttributeRequest 變更先前針對 Contact 實體擷取之自訂屬性 (Attribute) 的 AttributeMetadata.DisplayName 屬性 (Property)。

// Modify the retrieved attribute
AttributeMetadata retrievedAttributeMetadata =
    attributeResponse.AttributeMetadata;
retrievedAttributeMetadata.DisplayName =
    new Label("Update String Attribute", _languageCode);

// Update an attribute retrieved via RetrieveAttributeRequest
UpdateAttributeRequest updateRequest = new UpdateAttributeRequest
{
    Attribute = retrievedAttributeMetadata,
    EntityName = Contact.EntityLogicalName,
    MergeLabels = false
};

// Execute the request
_serviceProxy.Execute(updateRequest);

Console.WriteLine("Updated the attribute {0}.",
    retrievedAttributeMetadata.SchemaName);

建立查詢屬性

查詢屬性是使用 CreateOneToManyRequest 建立。

這個範例程式碼將說明如何建立查詢屬性。 如需完整的範例，請參閱範例：建立和更新實體中繼資料

CreateOneToManyRequest req = new CreateOneToManyRequest()
{
    Lookup = new LookupAttributeMetadata()
    {
        Description = new Label("The referral (lead) from the bank account owner", 1033),
        DisplayName = new Label("Referral", 1033),
        LogicalName = "new_parent_leadid",
        SchemaName = "New_Parent_leadId",
        RequiredLevel = new AttributeRequiredLevelManagedProperty(AttributeRequiredLevel.Recommended)
    },
    OneToManyRelationship = new OneToManyRelationshipMetadata()
    {
        AssociatedMenuConfiguration = new AssociatedMenuConfiguration()
        {
            Behavior = AssociatedMenuBehavior.UseCollectionName,
            Group = AssociatedMenuGroup.Details,
            Label = new Label("Bank Accounts", 1033),
            Order = 10000
        },
        CascadeConfiguration = new CascadeConfiguration()
        {
            Assign = CascadeType.Cascade,
            Delete = CascadeType.Cascade,
            Merge = CascadeType.Cascade,
            Reparent = CascadeType.Cascade,
            Share = CascadeType.Cascade,
            Unshare = CascadeType.Cascade
        },
        ReferencedEntity = "lead",
        ReferencedAttribute = "leadid",
        ReferencingEntity = _customEntityName,
        SchemaName = "new_lead_new_bankaccount"
    }
};
_serviceProxy.Execute(req);

建立客戶查詢屬性

與查詢屬性不同的是，客戶查詢屬性是使用 CreateCustomerRelationshipsRequest 訊息建立，它會新增兩個關聯至查詢屬性：一個是與 Account 實體的關聯，另一個是與 Contact 實體的關聯。 您無法針對客戶查詢屬性新增關聯至任何其他實體，除了 Account 和 Contact 實體以外。

備註

CRM Online 2016 更新 1 和 CRM 2016 Service Pack 1 (內部部署) 已經引進此功能。

這個範例程式碼將說明如何建立客戶查詢屬性。 如需完整的範例，請參閱範例：建立和更新實體中繼資料

CreateCustomerRelationshipsRequest createCustomerReq = new CreateCustomerRelationshipsRequest
{
    Lookup = new LookupAttributeMetadata
    {
        Description = new Label("The owner of the bank account", 1033),
        DisplayName = new Label("Account owner", 1033),
        RequiredLevel = new AttributeRequiredLevelManagedProperty(AttributeRequiredLevel.ApplicationRequired),
        SchemaName = "new_customerid"
    },
    OneToManyRelationships = new OneToManyRelationshipMetadata[]
    {
        new OneToManyRelationshipMetadata()
        {
            ReferencedEntity = "account",
            ReferencingEntity = _customEntityName,
            SchemaName = "new_bankaccount_customer_account",
        },
        new OneToManyRelationshipMetadata()
        {
            ReferencedEntity = "contact",
            ReferencingEntity = _customEntityName,
            SchemaName = "new_bankaccount_customer_contact",
        }
    },
};
_serviceProxy.Execute(createCustomerReq);

建立使用全域選項組的挑選清單

這個範例將說明如何建立與全域選項組相關的 PicklistAttributeMetadata 屬性。

下列範例會使用 CreateAttributeRequest 設定 PicklistAttributeMetadata 屬性的選項，以使用字串變數 _globalOptionSetName 所代表名稱的全域選項組。其他資訊：自訂全域選項組

// Create a Picklist linked to the option set.
// Specify which entity will own the picklist, and create it.
CreateAttributeRequest createRequest = new CreateAttributeRequest
{
    EntityName = Contact.EntityLogicalName,
    Attribute = new PicklistAttributeMetadata
    {
        SchemaName = "sample_examplepicklist",
        LogicalName = "sample_examplepicklist",
        DisplayName = new Label("Example Picklist", _languageCode),
        RequiredLevel = new AttributeRequiredLevelManagedProperty(AttributeRequiredLevel.None),

        // In order to relate the picklist to the global option set, be sure
        // to specify the two attributes below appropriately.
        // Failing to do so will lead to errors.
        OptionSet = new OptionSetMetadata
        {
            IsGlobal = true,
            Name = _globalOptionSetName
        }
    }
};

_serviceProxy.Execute(createRequest);

插入新狀態值

這個範例將說明如何為 StatusAttributeMetadata 屬性插入新的 [狀態原因] 選項。

下列範例將使用 InsertStatusValueRequest 為 Contact 實體 Contact.StatusCode 屬性指定新選項，該屬性在 Contact.StateCode 為 0 (使用中) 時有效。IOrganizationService.Execute 方法會處理此要求。

下列範例允許使用中連絡人擁有兩個有效的 [狀態原因] 選項：[使用中] 和 [不活躍]。

// Use InsertStatusValueRequest message to insert a new status 
// in an existing status attribute. 
// Create the request.
InsertStatusValueRequest insertStatusValueRequest =
    new InsertStatusValueRequest
{
    AttributeLogicalName = "statuscode",
    EntityLogicalName = Contact.EntityLogicalName,
    Label = new Label("Dormant", _languageCode),
    StateCode = 0
};

// Execute the request and store newly inserted value 
// for cleanup, used later part of this sample. 
_insertedStatusValue = ((InsertStatusValueResponse)_serviceProxy.Execute(
    insertStatusValueRequest)).NewOptionValue;

Console.WriteLine("Created {0} with the value of {1}.",
    insertStatusValueRequest.Label.LocalizedLabels[0].Label,
    _insertedStatusValue);

更新狀態值

這個範例將說明如何變更 StateAttributeMetadata 屬性中選項的標籤。

下列範例會使用 UpdateStateValueRequest 將 Contact.StateCode 選項標籤從 [使用中] 變更為 [開啟]。

// Modify the state value label from Active to Open.
// Create the request.
UpdateStateValueRequest updateStateValue = new UpdateStateValueRequest
{
    AttributeLogicalName = "statecode",
    EntityLogicalName = Contact.EntityLogicalName,
    Value = 1,
    Label = new Label("Open", _languageCode)
};

// Execute the request.
_serviceProxy.Execute(updateStateValue);

Console.WriteLine(
    "Updated {0} state attribute of {1} entity from 'Active' to '{2}'.",
    updateStateValue.AttributeLogicalName,
    updateStateValue.EntityLogicalName,
    updateStateValue.Label.LocalizedLabels[0].Label
    );

您無法新增或移除 StateCode 選項，但是可以變更選項的標籤。

在本機選項組中插入新選項

這個範例將說明如何在本機選項組中新增選項。 下列範例會使用 InsertOptionValueRequest 將新選項新增至 Contact 實體的自訂 PicklistAttributeMetadata 屬性。

// Create a request.
InsertOptionValueRequest insertOptionValueRequest =
    new InsertOptionValueRequest
{
    AttributeLogicalName = "new_picklist",
    EntityLogicalName = Contact.EntityLogicalName,
    Label = new Label("New Picklist Label", _languageCode)
};

// Execute the request.
int insertOptionValue = ((InsertOptionValueResponse)_serviceProxy.Execute(
    insertOptionValueRequest)).NewOptionValue;

Console.WriteLine("Created {0} with the value of {1}.",
    insertOptionValueRequest.Label.LocalizedLabels[0].Label,
    insertOptionValue);

變更選項在本機選項組中的順序

這個範例將說明如何變更選項在本機選項組中的順序。 下列範例會擷取自訂 PicklistAttributeMetadata 屬性，並且使用 OrderByLINQ 函數變更原始選項的順序，以便依標籤文字的遞增順序排序項目。 然後它會使用 OrderOptionRequest 設定屬性選項的新順序。

使用 OrderByDecending linq 函數可依遞減順序排列項目。

// Use the RetrieveAttributeRequest message to retrieve  
// a attribute by it's logical name.
RetrieveAttributeRequest retrieveAttributeRequest =
    new RetrieveAttributeRequest
{
    EntityLogicalName = Contact.EntityLogicalName,
    LogicalName = "new_picklist",
    RetrieveAsIfPublished = true
};

// Execute the request.
RetrieveAttributeResponse retrieveAttributeResponse =
    (RetrieveAttributeResponse)_serviceProxy.Execute(
    retrieveAttributeRequest);

// Access the retrieved attribute.
PicklistAttributeMetadata retrievedPicklistAttributeMetadata =
    (PicklistAttributeMetadata)
    retrieveAttributeResponse.AttributeMetadata;

// Get the current options list for the retrieved attribute.
OptionMetadata[] optionList =
    retrievedPicklistAttributeMetadata.OptionSet.Options.ToArray();

// Change the order of the original option's list.
// Use the OrderBy (OrderByDescending) linq function to sort options in  
// ascending (descending) order according to label text.
// For ascending order use this:
var updateOptionList =
    optionList.OrderBy(x => x.Label.LocalizedLabels[0].Label).ToList();

// For descending order use this:
// var updateOptionList =
//      optionList.OrderByDescending(
//      x => x.Label.LocalizedLabels[0].Label).ToList();

// Create the request.
OrderOptionRequest orderOptionRequest = new OrderOptionRequest
{
    // Set the properties for the request.
    AttributeLogicalName = "new_picklist",
    EntityLogicalName = Contact.EntityLogicalName,
    // Set the changed order using Select linq function 
    // to get only values in an array from the changed option list.
    Values = updateOptionList.Select(x => x.Value.Value).ToArray()
};

// Execute the request
_serviceProxy.Execute(orderOptionRequest);

Console.WriteLine("Option Set option order changed");

刪除屬性

這個範例將說明如何將儲存在 List<AttributeMetadata> 的 建立屬性中，為 Contact 實體所建立的屬性刪除。DeleteAttributeRequest 會針對每個 AttributeMetadata 準備一個使用 IOrganizationService.Execute 處理的要求。

// Delete all attributes created for this sample.
foreach (AttributeMetadata anAttribute in addedAttributes)
{
    // Create the request object
    DeleteAttributeRequest deleteAttribute = new DeleteAttributeRequest
    {
        // Set the request properties 
        EntityLogicalName = Contact.EntityLogicalName,
        LogicalName = anAttribute.SchemaName
    };
    // Execute the request
    _serviceProxy.Execute(deleteAttribute);
}

另請參閱

自訂實體屬性中繼資料
實體屬性中繼資料訊息
範例：使用屬性中繼資料
自訂實體和屬性對應

Microsoft Dynamics 365

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