MessageQueueTask.Validate Method
Verifies that the task is properly configured.
Namespace: Microsoft.SqlServer.Dts.Tasks.MessageQueueTask
Assembly: Microsoft.SqlServer.MSMQTask (in Microsoft.SqlServer.MSMQTask.dll)
Syntax
'Declaration
Public Overrides Function Validate ( _
connections As Connections, _
variableDispenser As VariableDispenser, _
events As IDTSComponentEvents, _
log As IDTSLogging _
) As DTSExecResult
'Usage
Dim instance As MessageQueueTask
Dim connections As Connections
Dim variableDispenser As VariableDispenser
Dim events As IDTSComponentEvents
Dim log As IDTSLogging
Dim returnValue As DTSExecResult
returnValue = instance.Validate(connections, _
variableDispenser, events, log)
public override DTSExecResult Validate(
Connections connections,
VariableDispenser variableDispenser,
IDTSComponentEvents events,
IDTSLogging log
)
public:
virtual DTSExecResult Validate(
Connections^ connections,
VariableDispenser^ variableDispenser,
IDTSComponentEvents^ events,
IDTSLogging^ log
) override
abstract Validate :
connections:Connections *
variableDispenser:VariableDispenser *
events:IDTSComponentEvents *
log:IDTSLogging -> DTSExecResult
override Validate :
connections:Connections *
variableDispenser:VariableDispenser *
events:IDTSComponentEvents *
log:IDTSLogging -> DTSExecResult
public override function Validate(
connections : Connections,
variableDispenser : VariableDispenser,
events : IDTSComponentEvents,
log : IDTSLogging
) : DTSExecResult
Parameters
- connections
Type: Microsoft.SqlServer.Dts.Runtime.Connections
A collection of connections used by the task.
- variableDispenser
Type: Microsoft.SqlServer.Dts.Runtime.VariableDispenser
A VariableDispenser object for locking variables.
- events
Type: Microsoft.SqlServer.Dts.Runtime.IDTSComponentEvents
An object implementing the IDTSComponentEvents interface.
- log
Type: Microsoft.SqlServer.Dts.Runtime.IDTSLogging
An object implementing the IDTSLogging interface.
Return Value
Type: Microsoft.SqlServer.Dts.Runtime.DTSExecResult
A value from the DTSExecResult enumeration.
Remarks
The Validate method reviews properties and settings for inaccuracies or incorrect settings. The method does not touch data, or connect to data sources to validate connections. However, it ensures that required fields are populated and contain appropriate values. The fields that are validated differ depending on what object is being validated.
The primary use of Validate is when writing a custom task. The Validate method is called by SSIS Designer when a task is dropped onto the design surface and again, potentially multiple times, when properties are being set. However, in code, the Validate method on individual objects is not commonly used, as it is recommended that you call the Validate method on the Package when you need to validate objects. However, the method is available on individual objects should you find a unique circumstance where it is needed.
The Validate method is overridden in custom tasks, either for validation of the object when used in the SSIS Designer, or when called by code. For more information on writing the Validate method for a custom task, see Coding a Custom Task.
Examples
The following code example shows how to validate objects by using the Validate method of the Package object.
DTSExecResult myresult = pkg.Validate(myPkgConnections, myPkgVariables, myIDTSEvents, myIDTSLogging);
Dim myresult As DTSExecResult = pkg.Validate(myPkgConnections,myPkgVariables,myIDTSEvents, myIDTSLogging)