simpletemplate.vb

asp.net技术内幕的书配源码

Imports System
Imports System.Web
Imports System.Web.UI

Namespace myControls

Public Class TemplateItem
Inherits Control
Implements INamingContainer

  Private _dataItem As String

  Public Sub New( DataItem As String )
    _dataItem = DataItem
  End Sub

  Public Property DataItem As String
    Get
      Return _dataItem
    End Get
    Set
      _dataItem = Value
    End Set
  End Property
End Class

<ParseChildren(true)> Public Class SimpleTemplate
Inherits Control
Implements INamingContainer

  Private _itemTemplate As ITemplate
  Private _text As String

  Public Property Text As String
    Get
      Return _text
    End Get
    Set
      _text = Value
    End Set
  End Property

  <TemplateContainer(GetType(TemplateItem))> _
  Public Property ItemTemplate As ITemplate
    Get
      Return _itemTemplate
    End Get
    Set
      _itemTemplate = Value
    End Set
  End Property

  Public Overrides Sub DataBind()
    EnsureChildControls()
    MyBase.DataBind()
  End Sub

  Protected Overrides Sub CreateChildControls()
    Dim objTemplateItem As TemplateItem
    
    Controls.Clear()
    objTemplateItem = New TemplateItem( Me.Text )
    ItemTemplate.InstantiateIn( objTemplateItem )
    Controls.Add( objTemplateItem )
  End Sub
End Class

End Namespace