DataRepeater.OnItemValueNeeded Method

Raises the ItemValueNeeded event.

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

Syntax

'Declaration
Protected Overridable Sub OnItemValueNeeded ( _
    e As DataRepeaterItemValueEventArgs _
)

protected virtual void OnItemValueNeeded(
    DataRepeaterItemValueEventArgs e
)

protected:
virtual void OnItemValueNeeded(
    DataRepeaterItemValueEventArgs^ e
)

abstract OnItemValueNeeded : 
        e:DataRepeaterItemValueEventArgs -> unit 
override OnItemValueNeeded : 
        e:DataRepeaterItemValueEventArgs -> unit 

protected function OnItemValueNeeded(
    e : DataRepeaterItemValueEventArgs
)

Parameters

• e
  Type: Microsoft.VisualBasic.PowerPacks.DataRepeaterItemValueEventArgs
  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 OnItemValueNeeded 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 OnItemValueNeeded in a derived class, make sure to call the OnItemValueNeeded 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

ItemValueNeeded

Other Resources

Introduction to the DataRepeater Control (Visual Studio)