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DataParameter.OnDirectionChanged Method

Called when the Direction property is changed to signal a change in the parameter direction.

Namespace:  Microsoft.VisualStudio.Data.Framework
Assembly:  Microsoft.VisualStudio.Data.Framework (in Microsoft.VisualStudio.Data.Framework.dll)

Syntax

'Declaration
Protected Overridable Sub OnDirectionChanged
protected virtual void OnDirectionChanged()
protected:
virtual void OnDirectionChanged()
abstract OnDirectionChanged : unit -> unit  
override OnDirectionChanged : unit -> unit
protected function OnDirectionChanged()

Remarks

The base implementation of this method tests whether the parameter direction, as defined in the DataParameterDirection enumeration, has been set to either Out or ReturnValue, and, if so, sets the value of the parameter to nulla null reference (Nothing in Visual Basic) (because the presence of parameter values for Out or ReturnValue parameters is not logical).

.NET Framework Security

See Also

Reference

DataParameter Class

Microsoft.VisualStudio.Data.Framework Namespace