日期:2014-05-18 浏览次数:20510 次
RadioButtonList rb = (RadioButtonList)FormView1.FindControl("S_answer"); //这块你确定你找到了这个东西了 ? //使用的时候也不判断一下是不是null? //调试一下 看看你这块是不是得到这个东西了 要是没有找到 重新看看你找哪个控件的代码 string s = rb.SelectedValue.ToString();
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RadioButtonList 用(SelectedValue.ToString();)这个貌似不对吧 ~~~
我记得应该是 :SelectedItem.Text;
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你的
RadioButtonList
放在了
<EditItemTemplate></EditItemTemplate>
里面了吗
参见
http://msdn.microsoft.com/zh-cn/library/system.web.ui.webcontrols.formview.itemupdating.aspx
------解决方案--------------------
<%@ Page Language="C#" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <script runat="server"> protected void FormView1_ItemUpdating(object sender, FormViewUpdateEventArgs e) { RadioButtonList RadioButtonList1 = FormView1.FindControl("RadioButtonList1") as RadioButtonList; Response.Write(RadioButtonList1.SelectedValue); //为了测试。不继续执行 e.Cancel = true; } </script> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title></title> </head> <body> <form runat="server"> <asp:FormView ID="FormView1" runat="server" DataSourceID="SqlDataSource1" DefaultMode="Edit" OnItemUpdating="FormView1_ItemUpdating"> <EditItemTemplate> <asp:RadioButtonList ID="RadioButtonList1" runat="server" RepeatDirection="Horizontal"> <asp:ListItem Value="A">A</asp:ListItem> <asp:ListItem Value="B">B</asp:ListItem> <asp:ListItem Value="C">C</asp:ListItem> <asp:ListItem Value="D">D</asp:ListItem> </asp:RadioButtonList> <asp:Button ID="x" runat="server" CommandName="Update" Text="Update" /> </EditItemTemplate> </asp:FormView> <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="Provider=SQLOLEDB;Data Source=.;Persist Security Info=True;Password=xx;User ID=sa;Initial Catalog=xxxxx" ProviderName="System.Data.OleDb" SelectCommand="SELECT Title FROM [Article]" UpdateCommand="Update xxx"></asp:SqlDataSource> </form> </body> </html>