DataSink.ValidateDifference Method

Called by the data generation engine to allow derived classes to perform additional validation for the differences between the source and target elements.

Namespace:  Microsoft.Data.Schema.Tools.DataGenerator
Assembly:  Microsoft.Data.Schema.Tools (in Microsoft.Data.Schema.Tools.dll)

Syntax

'Declaration
Protected Overridable Function ValidateDifference ( _
    sourceElement As IModelElement, _
    targetDifference As ModelComparisonChangeDefinition, _
    <OutAttribute> ByRef elementErrors As List(Of DataSchemaError) _
) As Boolean

protected virtual bool ValidateDifference(
    IModelElement sourceElement,
    ModelComparisonChangeDefinition targetDifference,
    out List<DataSchemaError> elementErrors
)

protected:
virtual bool ValidateDifference(
    IModelElement^ sourceElement, 
    ModelComparisonChangeDefinition^ targetDifference, 
    [OutAttribute] List<DataSchemaError^>^% elementErrors
)

abstract ValidateDifference : 
        sourceElement:IModelElement * 
        targetDifference:ModelComparisonChangeDefinition * 
        elementErrors:List<DataSchemaError> byref -> bool 
override ValidateDifference : 
        sourceElement:IModelElement * 
        targetDifference:ModelComparisonChangeDefinition * 
        elementErrors:List<DataSchemaError> byref -> bool 

protected function ValidateDifference(
    sourceElement : IModelElement, 
    targetDifference : ModelComparisonChangeDefinition, 
    elementErrors : List<DataSchemaError>
) : boolean

Parameters

• sourceElement
  Type: Microsoft.Data.Schema.SchemaModel.IModelElement
  An IModelElement object representing the source element.

• targetDifference
  Type: Microsoft.Data.Schema.SchemaModel.ModelComparisonChangeDefinition
  A ModelComparisonChangeDefinition object.

• elementErrors
  Type: System.Collections.Generic.List<DataSchemaError>%
  (Output) A List<T> of DataSchemaError objects containing the errors that occurred during execution.

Return Value

Type: System.Boolean
When overridden in a derived class, returns true if the differences are valid; otherwise, false. The default implementation always returns true.

.NET Framework Security

• Full trust for the immediate caller. This member cannot be used by partially trusted code. For more information, see Using Libraries from Partially Trusted Code.

See Also

Reference

DataSink Class

Microsoft.Data.Schema.Tools.DataGenerator Namespace

IModelElement

DataSchemaError

ModelComparisonChangeDefinition