PrecedenceConstraint Class

Specifies the properties for configuring a precedence constraint between two containers. This class cannot be inherited.


Namespace:  Microsoft.SqlServer.Dts.Runtime
Assembly:  Microsoft.SqlServer.ManagedDTS (in Microsoft.SqlServer.ManagedDTS.dll)

public sealed class PrecedenceConstraint : DtsObject, 
	IDTSName, IDTSPersist, IComponent, IDisposable

The PrecedenceConstraint type exposes the following members.

Public propertyConstrainedExecutableGets the name of a constrained container. This property is read-only.
Public propertyCreationNameGets the string used by the Integration Services runtime to create an instance of the PrecedenceConstraint object and add the object to the PrecedenceConstraints collection. This property is read-only.
Public propertyDescriptionGets or sets a description for the constraint.
Public propertyEvalOpGets or sets the evaluation operations used by the precedence constraint.
Public propertyEvaluatesTrueGets a value that indicates whether the specified Value property evaluates to true. This property is read-only.
Public propertyExpressionGets or sets the expression that the precedence constraint uses if EvalOp is set to Expression, ExpressionAndConstraint, or ExpressionOrConstraint.
Public propertyIDGets the GUID of the precedence constraint. This property is read-only.
Public propertyLogicalAndGets or sets a Boolean value that indicates whether multiple constraints work together.
Public propertyNameGets or sets the unique name of the precedence constraint.
Public propertyParentGets the parent container of the PrecedenceConstraint.
Public propertyPrecedenceExecutableGets the name of the precedence executable. This property is read-only.
Public propertySiteInfrastructure. Gets or sets the site of the precedence constraint.
Public propertyValueGets or sets the constraint type of Success, Failure, or Completion.

Public methodDisposeThis method is inherited from the IDisposable.Dispose method, which is a generic mechanism to explicitly tell an object to perform cleanup.
Public methodEqualsDetermines whether two object instances are equal. (Inherited from DtsObject.)
Public methodGetHashCodeReturns the hash code for this instance. (Inherited from DtsObject.)
Public methodGetType (Inherited from Object.)
Public methodLoadFromXMLThis method is not callable by your application code. Loads a package containing precedence constraints that are saved as .xml, use the Application.LoadPackage method.
Public methodSaveToXMLThis method is not callable by your application code. Saves a package as .xml, use the Application.SaveToXml method.
Public methodToString (Inherited from Object.)

Public eventDisposedAdds an event handler to listen to the Disposed event on the precedence constraint.

You can specify the precedence and constrained executables that the precedence constraint connects, the expression and constraint that determine whether the constrained executable runs, and whether the precedence constraint works in concert with other precedence constraints.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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