利用Asp.net 动态创建DataList[转]

最新推荐文章于 2021-01-12 14:45:08 发布

转载最新推荐文章于 2021-01-12 14:45:08 发布 · 412 阅读

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#asp.net #integer #class #border #object #table

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Private Sub Page_Load(ByVal sender As System.Object, ByVal e As
            System.EventArgs) Handles MyBase.Load
            ''Put user code to initialize the page here
            Dim dl As New DataList
            dl.HeaderTemplate = New CreateDL(ListItemType.Header)
            dl.ItemTemplate = New CreateDL(ListItemType.Item)
            dl.AlternatingItemTemplate = New
            CreateDL(ListItemType.AlternatingItem)
            dl.FooterTemplate = New CreateDL(ListItemType.Footer)
            Dim d As New Data
            dl.DataSource = d.getTree
            dl.DataBind()
            div1.Controls.Add(dl)

End Sub

            Public Class CreateDL
            Implements ITemplate
            Shared itemcount As Integer = 0
            Dim TemplateType As ListItemType

            Sub New(ByVal type As ListItemType)
            TemplateType = type
            End Sub

            Sub InstantiateIn(ByVal container As Control) Implements
            ITemplate.InstantiateIn
            Dim lc As New Literal
            Select Case TemplateType
            Case ListItemType.Header
            lc.Text = "<TABLE border=1><TR><TH>Items</TH></TR>"
            Case ListItemType.Item
            lc.Text = "<TR><TD>Item number: " ''& itemcount.ToString &
            "</TD></TR>"
            AddHandler lc.DataBinding, AddressOf TemplateControl_Databinding
            Case ListItemType.AlternatingItem
            lc.Text = "<TR><TD bgcolor=lightblue>Item number: " _
            & itemcount.ToString & "</TD></TR>"
            Case ListItemType.Footer
            lc.Text = "</TABLE>"
            End Select
            container.Controls.Add(lc)
            itemcount += 1
            End Sub
            Private Sub TemplateControl_DataBinding(ByVal sender As Object, _
            ByVal e As System.EventArgs)
            Dim lc As Literal
            lc = CType(sender, Literal)
            Dim container As DataListItem
            container = CType(lc.NamingContainer, DataListItem)
            lc.Text &= DataBinder.Eval(container.DataItem, "text")
            lc.Text &= "</TD></TR>"
            End Sub

End Class