包含RadioButton的DataGrid(一个属性获得所选择的项,只能选择一个)

目前没有加上保持RadioButton选择状态，等我有时间在加上，要加JS的，所以就马虎了，很简单的，当然也会有问题，如果发现问题，将来我来改，把问题，写在下面，谢谢，最近没时间改了，我要做一个大的项目，望见谅！论坛总有人问如何选择一个什么的，现在有多选的和单选的，没问题了，当然，大家看看就可以把两个拼成一个，大家拿代码改吧！

Imports System.ComponentModel
Imports System.Web.UI
Imports System.Drawing
Imports System.Web
Imports System.Web.UI.WebControls

<DefaultProperty("Text"), ToolboxData("<{0}:RadioBoxDataGrid runat=server></{0}:RadioBoxDataGrid>")> _
Public Class RadioBoxDataGrid
    Inherits System.Web.UI.WebControls.DataGrid
#Region "プロパティ"
#Region "親クラスから継承された表示プロパティ"

    <NotifyParentProperty(True), Browsable(False), _
    EditorBrowsable(EditorBrowsableState.Advanced)> _
    Public Overrides Property AutoGenerateColumns() As Boolean
        Get
            Return MyBase.AutoGenerateColumns
        End Get
        Set(ByVal Value As Boolean)
            MyBase.AutoGenerateColumns = False
        End Set
    End Property

    <NotifyParentProperty(True), Browsable(False), _
    EditorBrowsable(EditorBrowsableState.Advanced)> _
    Public Shadows Property DataMember() As String
        Get
            Return MyBase.DataMember
        End Get
        Set(ByVal Value As String)
            MyBase.DataMember = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
     Public Overrides Property AllowCustomPaging() As Boolean
        Get
            Return MyBase.AllowCustomPaging
        End Get
        Set(ByVal Value As Boolean)
            MyBase.AllowCustomPaging = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides Property AllowPaging() As Boolean
        Get
            Return MyBase.AllowPaging
        End Get
        Set(ByVal Value As Boolean)
            MyBase.AllowPaging = Value
        End Set
    End Property

    <NotifyParentProperty(True), _
    Browsable(False), EditorBrowsable(EditorBrowsableState.Advanced)> _
    Public Overrides Property AllowSorting() As Boolean
        Get
            Return MyBase.AllowSorting
        End Get
        Set(ByVal Value As Boolean)
            MyBase.AllowSorting = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides ReadOnly Property AlternatingItemStyle() As TableItemStyle
        Get
            Return MyBase.AlternatingItemStyle
        End Get
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides Property BackColor() As Color
        Get
            Return MyBase.BackColor
        End Get
        Set(ByVal Value As Color)
            MyBase.BackColor = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
        Public Overrides Property BackImageUrl() As String
        Get
            Return MyBase.BackImageUrl
        End Get
        Set(ByVal Value As String)
            MyBase.BackImageUrl = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides Property BorderColor() As Color
        Get
            Return MyBase.BorderColor
        End Get
        Set(ByVal Value As Color)
            MyBase.BorderColor = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides Property BorderStyle() As BorderStyle
        Get
            Return MyBase.BorderStyle
        End Get
        Set(ByVal Value As BorderStyle)
            MyBase.BorderStyle = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides Property BorderWidth() As Unit
        Get
            Return MyBase.BorderWidth
        End Get
        Set(ByVal Value As Unit)
            MyBase.BorderWidth = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
       Public Overrides Property CellPadding() As Integer
        Get
            Return MyBase.CellPadding
        End Get
        Set(ByVal Value As Integer)
            MyBase.CellPadding = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides Property CellSpacing() As Integer
        Get
            Return MyBase.CellSpacing
        End Get
        Set(ByVal Value As Integer)
            MyBase.CellSpacing = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides ReadOnly Property Columns() As DataGridColumnCollection
        Get
            Return MyBase.Columns
        End Get
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides Property EditItemIndex() As Integer
        Get
            Return MyBase.EditItemIndex
        End Get
        Set(ByVal Value As Integer)
            MyBase.EditItemIndex = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides ReadOnly Property EditItemStyle() As TableItemStyle
        Get
            Return MyBase.EditItemStyle
        End Get
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides Property Enabled() As Boolean
        Get
            Return MyBase.Enabled
        End Get
        Set(ByVal Value As Boolean)
            MyBase.Enabled = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides ReadOnly Property FooterStyle() As TableItemStyle
        Get
            Return MyBase.FooterStyle
        End Get
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides Property ForeColor() As Color
        Get
            Return MyBase.ForeColor
        End Get
        Set(ByVal Value As Color)
            MyBase.ForeColor = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides Property GridLines() As GridLines
        Get
            Return MyBase.GridLines
        End Get
        Set(ByVal Value As GridLines)
            MyBase.GridLines = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides ReadOnly Property HeaderStyle() As TableItemStyle
        Get
            Return MyBase.HeaderStyle
        End Get
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides Property Height() As Unit
        Get
            Return MyBase.Height
        End Get
        Set(ByVal Value As Unit)
            MyBase.Height = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides Property HorizontalAlign() As HorizontalAlign
        Get
            Return MyBase.HorizontalAlign
        End Get
        Set(ByVal Value As HorizontalAlign)
            MyBase.HorizontalAlign = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides ReadOnly Property ItemStyle() As TableItemStyle
        Get
            Return MyBase.ItemStyle
        End Get
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides ReadOnly Property PagerStyle() As DataGridPagerStyle
        Get
            Return MyBase.PagerStyle
        End Get
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides Property PageSize() As Integer
        Get
            Return MyBase.PageSize
        End Get
        Set(ByVal Value As Integer)
            MyBase.PageSize = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
       Public Overrides Property ShowFooter() As Boolean
        Get
            Return MyBase.ShowFooter
        End Get
        Set(ByVal Value As Boolean)
            MyBase.ShowFooter = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
           Public Overrides Property ShowHeader() As Boolean
        Get
            Return MyBase.ShowHeader
        End Get
        Set(ByVal Value As Boolean)
            MyBase.ShowHeader = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides Property Visible() As Boolean
        Get
            Return MyBase.Visible
        End Get
        Set(ByVal Value As Boolean)
            MyBase.Visible = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
    Public Overrides Property Width() As Unit
        Get
            Return MyBase.Width
        End Get
        Set(ByVal Value As Unit)
            MyBase.Width = Value
        End Set
    End Property

    <NotifyParentProperty(True)> _
       Public Overrides Property CssClass() As String
        Get
            Return MyBase.CssClass
        End Get
        Set(ByVal Value As String)
            MyBase.CssClass = Value
        End Set
    End Property
#End Region
    <Category("モード選択"), DefaultValue(""), _
     Description("selectItemlist")> _
        Public ReadOnly Property SelectedItemRadio() As Integer
        Get
            If Not IsDesignMode() Then
                Return GetRdioBoxState()
            Else
                Return -1
            End If
        End Get
    End Property

    <Category("モード選択"), DefaultValue("False"), _
         Description("selectItemlist")> _
    Public Property HasCheckBox() As Boolean
        Get
            Return viewstate("HasCheckBox")
        End Get
        Set(ByVal Value As Boolean)
            viewstate("HasCheckBox") = Value
        End Set
    End Property
#End Region

    Private Function IsDesignMode() As Boolean
        If (HttpContext.Current Is Nothing) Then
            Return True
        Else
            Return False
        End If
    End Function

    Protected Overrides Sub Render(ByVal writer As System.Web.UI.HtmlTextWriter)
        Dim tColumn As TemplateColumn
        Dim tmpArrayList As Hashtable

        If Me.Columns.Count = 0 Then
            tColumn = New TemplateColumn
            tColumn.HeaderText = "選択"
            tColumn.HeaderStyle.Wrap = False
            tColumn.HeaderStyle.Width = Unit.Pixel(35)
            tColumn.ItemStyle.Wrap = False
            tColumn.ItemStyle.HorizontalAlign = HorizontalAlign.Center
            Me.Columns.AddAt(0, tColumn)
        End If

        If Me.HasCheckBox = True Then
            Me.Columns(0).Visible = True
        Else
            Me.Columns(0).Visible = False
        End If
        tmpArrayList = New Hashtable
        tmpArrayList.Add("Z-INDEX", Style.Item("Z-INDEX"))
        tmpArrayList.Add("LEFT", Style.Item("LEFT"))
        tmpArrayList.Add("POSITION", Style.Item("POSITION"))
        tmpArrayList.Add("TOP", Style.Item("TOP"))
        Me.Style.Remove("Z-INDEX")
        Me.Style.Remove("LEFT")
        Me.Style.Remove("POSITION")
        Me.Style.Remove("TOP")
        writer.Write("<div" & " id='" & Me.ID & "_All' style='")
        writer.Write("Z-INDEX: " & tmpArrayList("Z-INDEX") & ";")
        writer.Write("LEFT: " & tmpArrayList("LEFT") & ";")
        writer.Write("POSITION: " & tmpArrayList("POSITION") & ";")
        writer.Write("TOP: " & tmpArrayList("TOP") & "' ms_positioning = 'FlowLayout'>")
        OutPutLayout(writer)
        writer.Write("</div>")
    End Sub

    Private Sub OutPutLayout(ByVal output As System.Web.UI.HtmlTextWriter)
        Dim visiableColumn() As Boolean
        ReDim visiableColumn(Me.Columns.Count - 1)

        For i As Integer = 0 To Me.Columns.Count - 1
            visiableColumn(i) = Me.Columns(i).Visible
        Next
        output.Write("<table cellSpacing='0' cellPadding='0' border='0'>")
        output.Write("<tr>")
        Call ShowLeft("", output)
        output.Write("</tr>")
        For i As Integer = 0 To Me.Columns.Count - 1
            Me.Columns.Item(i).Visible = visiableColumn(i)
        Next
        output.Write("</table>")
    End Sub

    Private Sub ShowLeft(ByVal width As String, ByVal output As System.Web.UI.HtmlTextWriter)
        Dim divStyle As String
        output.Write("<td valign='top'>")
        divStyle = "<DIV id='" & Me.ID & "_DivLeft' style='OVERFLOW-X: hidden; WIDTH: " & _
                 width & ";" _
            & " BORDER-TOP-STYLE: none; BORDER-RIGHT-STYLE: none; BORDER-LEFT-STYLE: none; " & _
             "' ms_positioning = 'GridLayout' > "
        output.Write(divStyle)
        For i As Integer = 0 To Me.Items.Count - 1
            Me.Items(i).Attributes("id") = Me.ID & "TRD" & i
        Next
        Me.Style("BORDER-STYLE") = "none"
        MyBase.Render(output)
        output.Write("</DIV>")
        output.Write("</td>")
    End Sub

    Private Sub XYScrollDataGrid_ItemDataBound( _
        ByVal sender As Object, _
        ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs) _
        Handles MyBase.ItemDataBound

        If e.Item.ItemType = ListItemType.AlternatingItem _
                Or e.Item.ItemType = ListItemType.Item _
                Or e.Item.ItemType = ListItemType.EditItem _
                Or e.Item.ItemType = ListItemType.SelectedItem Then
            If e.Item.ItemIndex <> -1 Then
                e.Item.Cells(0).Text = _
                "<input  type=radio" & _
                " name='" & Me.ID & "_radio' value=" & e.Item.ItemIndex & ">"
            End If
        End If
    End Sub

    Private Function GetRdioBoxState() As Integer
        Dim retValue As Integer

        retValue = -1
        If Not HttpContext.Current.Request(Me.ID & "_radio") Is Nothing Then
            retValue = HttpContext.Current.Request(Me.ID & "_radio")
        End If

        Return retValue
    End Function
End Class