DataRepeater.OnNewItemNeeded Method

Raises the NewItemNeeded event.

Namespace:  Microsoft.VisualBasic.PowerPacks
Assembly:  Microsoft.VisualBasic.PowerPacks.Vs (in Microsoft.VisualBasic.PowerPacks.Vs.dll)

Syntax

'宣告
Protected Overridable Sub OnNewItemNeeded ( _
    e As EventArgs _
)

protected virtual void OnNewItemNeeded(
    EventArgs e
)

protected:
virtual void OnNewItemNeeded(
    EventArgs^ e
)

abstract OnNewItemNeeded : 
        e:EventArgs -> unit 
override OnNewItemNeeded : 
        e:EventArgs -> unit 

protected function OnNewItemNeeded(
    e : EventArgs
)

Parameters

• e
  Type: System.EventArgs
  An object that contains the event data.

Remarks

Raising an event invokes the event handler through a delegate. For more information, see Raising an Event.

The OnNewItemNeeded method also enables derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.

Notes to Inheritors

When you override OnNewItemNeeded in a derived class, make sure to call the OnNewItemNeeded method of the base class so that registered delegates receive the event.

.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

DataRepeater Class

Microsoft.VisualBasic.PowerPacks Namespace

NewItemNeeded

Other Resources

Introduction to the DataRepeater Control (Visual Studio)