IDTSDesigntimeComponent100.Validate Method ()
Verifies that the component is correctly configured.
Assembly: Microsoft.SqlServer.DTSPipelineWrap (in Microsoft.SqlServer.DTSPipelineWrap.dll)
The IDTSComponentMetaData100 during .method is implemented by component developers to verify that the component is correctly configured. It is called repeatedly during package design, and one time before execution of the component. Components should not modify its
Each component has different requirements for successful validation, but the following list provides some of the common items that should be validated.
Verify that any IDTSCustomProperty100 objects continue to exist and contain the correct values.
Components should provide feedback to users when validation fails. Feedback is provided through the FireError and FireWarning methods and by the DTSValidationStatus return value. Calls to the FireError and FireWarning methods are displayed in the Task List window in SQL Server Data Tools (SSDT), and should provide users guidance on the validation failure. Of the four values in the DTSValidationStatus enumeration, only VS_ISVALID indicates successful validation. The other three values indicate different levels of failure. The following table describes the failure values in the enumeration and how they are interpreted by SSIS Designer.
Indicates that the component is not configured correctly. The user must make changes to the ComponentMetaData to resolve the problems.
Indicates that the validation errors can be fixed by the component in its implementation of the ReinitializeMetaData method. The SSIS designer will prompt users that the component can repair itself when the enumeration value is VS_NEEDSNEWMETADATA. Then the designer will call the ReinitializeMetaData method.
When the DelayValidation property of the data flow task is true, design-time calls to the method are eliminated, and the method is called before component execution instead.