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我通過從數據庫中爲相同用戶提取值來預填充複選框列表時出現了一些問題需要檢查多個複選框。這是一個更新配置文件頁面，我希望當這個頁面加載多個複選框時，根據數據庫檢查用戶在註冊時已經完成的檢查。所以，如何做到這一點，我想了很多次，但只有最後一個值得到檢查其他所有沒有得到檢查。單用戶可以有多種興趣愛好。所以checkboxlist是用於興趣愛好的，當更新頁面加載多個愛好時，已經檢查過，然後他可以更新和增加更多的愛好。更新部分我已經完成了，我只是希望checkboxlist預填充用戶以前給出的所有值。提前致謝。從數據庫中的值預填充複選框列表
這是我update.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Update.aspx.cs" Inherits="Update" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<table class="style1">
<tr>
<td class="style3">
<asp:Label ID="Label2" runat="server" Text="Login Name"></asp:Label>
</td>
<td colspan="2">
<asp:TextBox ID="txtlogin" runat="server" ReadOnly="True"></asp:TextBox>
</td>
<td>
</td>
</tr>
<tr>
<td class="style3">
<asp:Label ID="Label4" runat="server" Text="EmailId"></asp:Label>
</td>
<td colspan="2">
<asp:TextBox ID="txtemail" runat="server" ReadOnly="True"></asp:TextBox>
</td>
<td>
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server"
ControlToValidate="txtemail" Display="Dynamic" ErrorMessage="Invalid"
ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*"></asp:RegularExpressionValidator>
</td>
</tr>
<tr>
<td class="style3">
<asp:Label ID="Label5" runat="server" Text="Address"></asp:Label>
</td>
<td colspan="2">
<asp:TextBox ID="txtadd" runat="server" TextMode="MultiLine" Width="142px"
ReadOnly="True"></asp:TextBox>
</td>
<td>
</td>
</tr>
<tr>
<td class="style6">
<asp:Label ID="Label6" runat="server" Text="City"></asp:Label>
</td>
<td colspan="2" class="style7">
<asp:DropDownList ID="ddlcity" runat="server" Height="21px" Width="142px"
Enabled="False">
</asp:DropDownList>
</td>
<td class="style7">
</td>
</tr>
<tr>
<td class="style3">
<asp:Label ID="Label7" runat="server" Text="Pincode"></asp:Label>
</td>
<td colspan="2">
<asp:TextBox ID="txtpin" runat="server" ReadOnly="True" ></asp:TextBox>
</td>
<td>
<asp:RegularExpressionValidator ID="regexpin" runat="server"
ControlToValidate="txtpin" ErrorMessage="Numbers only(six digits)"
ValidationExpression="[0-9]{6}"></asp:RegularExpressionValidator>
</td>
</tr>
<tr>
<td class="style3">
<asp:Label ID="Label8" runat="server" Text="PaymentMode"></asp:Label>
</td>
<td colspan="2">
<asp:RadioButtonList ID="rbtnlstpay" runat="server" Height="28px" Width="225px"
Enabled="False">
</asp:RadioButtonList>
</td>
<td>
</td>
</tr>
<tr>
<td class="style3">
<asp:Label ID="Label9" runat="server" Text="Hobbies"></asp:Label>
</td>
<td colspan="2">
<asp:CheckBoxList ID="cblsthobbies" runat="server" Width="128px"
Enabled="False">
</asp:CheckBoxList>
</td>
<td>
</td>
</tr>
<tr>
<td class="style3">
</td>
<td class="style5" colspan="2">
</td>
<td>
</td>
</tr>
<tr>
<td class="style3">
</td>
<td>
<asp:Button ID="btnedit" runat="server" Text="Edit"
onclick="btnedit_Click" />
</td>
<td>
</td>
<td>
</td>
</tr>
<tr>
<td class="style4">
</td>
<td class="style2" colspan="2">
<asp:Label ID="lblresult" runat="server"></asp:Label>
</td>
<td class="style2">
</td>
</tr>
<tr>
<td class="style4">
</td>
<td class="style2" colspan="2">
</td>
<td class="style2">
</td>
</tr>
<tr>
<td class="style3">
</td>
<td colspan="2">
</td>
<td>
</td>
</tr>
<tr>
<td class="style3">
</td>
<td colspan="2">
</td>
<td>
</td>
</tr>
<tr>
<td class="style3">
</td>
<td colspan="2">
</td>
<td>
</td>
</tr>
<tr>
<td class="style3">
</td>
<td colspan="2">
</td>
<td>
</td>
</tr>
<tr>
<td class="style3">
</td>
<td colspan="2">
</td>
<td>
</td>
</tr>
</table>
</div>
</form>
</body>
</html>
這是我update.aspx.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.SqlClient;
using System.Data;
public partial class Update : System.Web.UI.Page
{
DataSet ds = new DataSet();
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
SqlConnection cn = new SqlConnection();
cn.ConnectionString = @"Data Source=.;Initial Catalog=UserRecords;Integrated Security=True";
SqlCommand cmd = new SqlCommand();
cmd.Connection = cn;
cmd.CommandText = "select * from CityMaster;select * from HobbyMaster;select * from PaymentModeMaster;select * from Users where LoginId = @Loginid;select * from UsersHobbies where LoginId = @Loginid";
cmd.CommandType = CommandType.Text;
cmd.Parameters.AddWithValue("@Loginid",Session["loginid"].ToString());
cn.Open();
SqlDataReader dr = cmd.ExecuteReader();
while (dr.Read())
{
ddlcity.Items.Add(new ListItem(dr["CityName"].ToString(), dr["CityId"].ToString()));
}
dr.NextResult();
while (dr.Read())
{
cblsthobbies.Items.Add(new ListItem(dr["Hobbyname"].ToString(), dr["HobbyId"].ToString()));
}
dr.NextResult();
while (dr.Read())
{
rbtnlstpay.Items.Add(new ListItem(dr["PaymentModename"].ToString(), dr["PaymentModeId"].ToString()));
}
dr.NextResult();
while (dr.Read())
{
txtlogin.Text = dr["LoginId"].ToString();
txtemail.Text = dr["EmailId"].ToString();
txtadd.Text = dr["Address"].ToString();
txtpin.Text = dr["Pincode"].ToString();
ddlcity.SelectedValue = dr["CityId"].ToString();
rbtnlstpay.SelectedValue = dr["PaymentModeId"].ToString();
}
dr.NextResult();
while (dr.Read())
{
for(int i = 0; i < dr.FieldCount; i++)
{
cblsthobbies.SelectedValue = dr["HobbyId"].ToString();
//cblsthobbies.SelectedValue = dr.GetValue(1).ToString();
}
}
cn.Close();
}
}
protected void btnedit_Click(object sender, EventArgs e)
{
txtemail.ReadOnly = false;
txtadd.ReadOnly = false;
ddlcity.Enabled = true;
txtpin.ReadOnly = false;
rbtnlstpay.Enabled = true;
cblsthobbies.Enabled = true;
btnedit.Text = "Update";
}
}
上的StackOverflow的問題[ASP.NET CheckBoxList的數據綁定（http://stackoverflow.com/questions/879434/ ASP淨的CheckBoxList，綁定個問題） –