学步园

 

Html代码

<form id="Form1" method="post" runat="server">
                 <asp:DataGrid id="DataGrid1" style="Z-INDEX: 101; LEFT: 224px; POSITION: absolute; TOP: 184px"
                       runat="server" AutoGenerateColumns="False" BorderColor="#E7E7FF" BorderStyle="None" BorderWidth="1px"
                       BackColor="White" CellPadding="3" GridLines="Horizontal">                        <SelectedItemStyle Font-Bold="True" ForeColor="#F7F7F7" BackColor="#738A9C"></SelectedItemStyle>                        <AlternatingItemStyle BackColor="#F7F7F7"></AlternatingItemStyle>                        <ItemStyle ForeColor="#4A3C8C" BackColor="#E7E7FF"></ItemStyle>                        <HeaderStyle Font-Bold="True" ForeColor="#F7F7F7" BackColor="#4A3C8C"></HeaderStyle>                        <FooterStyle ForeColor="#4A3C8C" BackColor="#B5C7DE"></FooterStyle>                        <Columns>
                             <asp:TemplateColumn HeaderText="111">
                                   <EditItemTemplate>
                                         <asp:DropDownList ID="d" Runat="server"></asp:DropDownList>                                    </EditItemTemplate>
                             </asp:TemplateColumn>
                             <asp:BoundColumn DataField="Stringvalue" HeaderText="Stringvalue"></asp:BoundColumn>                              <asp:EditCommandColumn ButtonType="LinkButton" UpdateText="Update" HeaderText="Edit" CancelText="Cancel"
                                   EditText="Edit"></asp:EditCommandColumn>
                       </Columns>
                       <PagerStyle HorizontalAlign="Right" ForeColor="#4A3C8C" BackColor="#E7E7FF" Mode="NumericPages"></PagerStyle>                  </asp:DataGrid>
           </form>

后台代码 .VB 

 Private Sub Page_Load()Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        If Not IsPostBack Then
            bind()
        End If
    End Sub
    Sub bind()
        Dim d As New Data
        DataGrid1.DataSource = d.CreateDataSource()
        DataGrid1.DataBind()
    End Sub
    Private Sub DataGrid1_EditCommand()Sub DataGrid1_EditCommand(ByVal source As Object, ByVal e As System.Web.UI.WebControls.DataGridCommandEventArgs) Handles DataGrid1.EditCommand
        DataGrid1.EditItemIndex = e.Item.ItemIndex
        bind()
        

    End Sub

    Private Sub DataGrid1_ItemDataBound()Sub DataGrid1_ItemDataBound(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DataGridItemEventArgs) Handles DataGrid1.ItemDataBound
        If e.Item.ItemType = ListItemType.EditItem Then
            Dim d1 As New DropDownList
            Dim d As New Data
            d1 = CType(e.Item.FindControl("d"), DropDownList)
            d1.DataSource = d.CreateDataSource()
            d1.DataTextField = "Stringvalue"
            d1.DatavalueField = "Integervalue"
            d1.DataBind()
        End If
    End Sub

C#代码

private void Page_Load(object sender, System.EventArgs e) 
{ 
 if (!(IsPostBack)) { 
   bind(); 
 } 
} 

void bind() 
{ 
 Data d = new Data(); 
 DataGrid1.DataSource = d.CreateDataSource(); 
 DataGrid1.DataBind(); 
} 

private void DataGrid1_EditCommand(object source, System.Web.UI.WebControls.DataGridCommandEventArgs e) 
{ 
 DataGrid1.EditItemIndex = e.Item.ItemIndex; 
 bind(); 
} 

private void DataGrid1_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e) 
{ 
 if (e.Item.ItemType == ListItemType.EditItem) { 
   DropDownList d1 = new DropDownList(); 
   Data d = new Data(); 
   d1 = ((DropDownList)(e.Item.FindControl("d"))); 
   d1.DataSource = d.CreateDataSource(); 
   d1.DataTextField = "Stringvalue"; 
   d1.DatavalueField = "Integervalue"; 
   d1.DataBind(); 
 } 
}