DefaultValue Element in DefaultValues (BDCMetadata Schema)

Applies to: SharePoint Server 2010

Represents a default value.

Some methods have complex signatures. For example, the Web service to get CRM customers might take six parameters, three of which might be structures with subparameters. To make it easier for users to call these methods, BDC allows you to specify default values for the parameters in the metadata. This way, users can invoke predefined business logic without having to undertake parameter construction.

The user can override any input parameter for which you have defined a DefaultValue. The user must specify any input parameter that has no DefaultValue, if the parameter is not optional.

For each abstract primitive in a TypeDescriptor object, you can define multiple default values, each of which corresponds to a particular MethodInstance object. At run-time, depending on which MethodInstance object the client executes, a parameter will be instantiated based on the corresponding default values.

Namespace: https://schemas.microsoft.com/windows/2007/BusinessDataCatalog

Schema: BDCMetadata

<DefaultValue MethodInstanceName = "String" Type = "String"> </DefaultValue>

Attributes and Elements

The following sections describe attributes, child elements, and parent elements.

Attributes

Attribute	Description
MethodInstanceName	Required. The name of the MethodInstance to which this DefaultValue applies. Attribute type: String
Type	Required. The data type of the default value. The following are the acceptable values for this attribute. System.Int16 System.Int32 System.Int64 System.Single System.Double System.Decimal System.Boolean System.Byte System.UInt16 System.UInt32 System.UInt64 System.Guid System.String System.DateTime Any other serializable type (such as where Type.IsSerializable == true) Attribute type: String

Child Elements

None.

Parent Elements

Element	Description
DefaultValues Element in TypeDescriptor (BDCMetadata Schema)