[C#]RadioButtonList控件取值问题
我使用this.rbtnItems.SelectedValue取不到值.但使用Request.Form["rbtnItems"]却能取到.不知是什么原因
default.aspx
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<form id="form1" runat="server">
<table border="0" cellpadding="0" cellspacing="0" class="style1">
<tr>
<td bgcolor="#3333CC">
<asp:Label ID="LabelTitle" runat="server" Text="Label"></asp:Label>
</td>
</tr>
<tr>
<td align="center" valign="middle">
<asp:RadioButtonList ID="rbtnItems" runat="server" Height="53px" Width="672px">
</asp:RadioButtonList>
</td>
</tr>
<tr>
<td align="center" bgcolor="Blue">
<asp:Button ID="btnVote" runat="server" Text="投 票" onclick="btnVote_Click" />
<asp:Button ID="btnShow" runat="server" Text="结 果" />
</td>
</tr>
</table>
</form>
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default.aspx.cs
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//创建Conn对象
SqlConnection objConn = DB.createConnection();
//打开Conn
objConn.Open();
//建立和查询
SqlCommand cmd = new SqlCommand("select voteTitle from voteMaster where voteID=" + this.voteid, objConn);
string strTitle = Convert.ToString(cmd.ExecuteScalar());
this.LabelTitle.Text = strTitle;
SqlCommand cmdItems = new SqlCommand("select * from voteDetails where voteId=" + this.voteid, objConn);
SqlDataReader objRs = cmdItems.ExecuteReader();
this.rbtnItems.DataSource = objRs;
this.rbtnItems.DataTextField = "voteItem";
this.rbtnItems.DataValueField = "voteDetailsID";
this.rbtnItems.DataBind();
objRs.Close();
objConn.Close();