Question

我在使用基于会话的登录登录时填充gridview时遇到问题。我正在使用母版页。目前我正在获得“必须声明标量变量”。我的想法是在脚本区域的某个地方检索它。非常感谢任何帮助!!!!

现在的问题是代码应该是非母版页根据其uname（数据库中的列）或UID（主键和理想方式）检索某人的特定信息母版页代码（至少相关内容）

    protected void btnlogin2_Click(object sender, EventArgs e)
{
    if (btnlogin2.Text == "Login")
    {

        string strCmd = "Select * From Person Where uname=@uname and upass=@upass";
        SqlConnection objConn = new SqlConnection(strConn);
        SqlCommand objCmd = new SqlCommand(strCmd, objConn);
        objCmd.Parameters.AddWithValue("@uname", txtusername.Text);
        objCmd.Parameters.AddWithValue("@upass", txtpassword.Text);


        using (objConn)
        {
            objConn.Open();
            SqlDataReader objDR = objCmd.ExecuteReader();

            if (objDR.Read())
            {

                Session["uname"] = txtusername.Text;

                if (objDR["Type"].ToString() == "Member")
                { Response.Redirect("member.aspx"); }
                else if (objDR["Type"].ToString() == "Pledge")
                { Response.Redirect("member.aspx"); }
                else if (objDR["Type"].ToString() == "Admin")
                { Response.Redirect("eboard.aspx"); }



            }
            else
            {


               // btnlogin2.Text = "Failed";

            }
        }
        btnlogin2.Text = "Logout";
    }
    else if (btnlogin2.Text == "Logout")
    {
        btnlogin2.Text = "Login";
        txtusername.Visible = true;
        txtpassword.Visible = true;
        pnlSideBar.Visible = false;

        Session.Abandon();
        Response.Redirect("index.aspx");

    }
    btnlogin2.Text = "Failed";
}

页面代码

<%@ Page Language="C#" Debug="true" MasterPageFile="masterpage.master"  %>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.SqlClient" %>
<%@ Import Namespace="System.Web.Configuration" %>

<script runat="server">

    protected void Page_Load(object sender, EventArgs e)
    {
        string strConn = WebConfigurationManager.ConnectionStrings["cloud2"].ConnectionString;
        if (User.Identity.IsAuthenticated)
        {
            Button btnlogin2 = (Button)Master.FindControl("btnlogin2");
            TextBox txtusername = (TextBox)Master.FindControl("txtusername");
            TextBox txtpassword = (TextBox)Master.FindControl("txtpassword");
            Panel pnlSideBar = (Panel)Master.FindControl("pnlSideBar");
            Panel pnlPledge = (Panel)Master.FindControl("pnlPledge");
            Panel pnlEboard = (Panel)Master.FindControl("pnlEboard");


            string strCmd = "Select * From Person Where uname=@uname";
            SqlConnection objConn = new SqlConnection(strConn);
            SqlCommand objCmd = new SqlCommand(strCmd, objConn);
            objCmd.Parameters.AddWithValue("@uname", Session["uname"]);




            using (objConn)
            {
                objConn.Open();
                SqlDataReader objDR = objCmd.ExecuteReader();

                if (objDR.Read())
                {
                    btnlogin2.Visible = true;
                    btnlogin2.Text = "Logout";
                    txtusername.Visible = false;
                    txtpassword.Visible = false;
                    if (objDR["Type"].ToString() == "Admin")
                    {
                        pnlEboard.Visible = true;
                        pnlPledge.Visible = false;
                        pnlSideBar.Visible = false;

                    }
                    else if (objDR["Type"].ToString() == "Member")
                    {
                        pnlEboard.Visible = false;
                        pnlPledge.Visible = false;
                        pnlSideBar.Visible = true;

                    }
                    else if (objDR["Type"].ToString() == "Pledge")
                    {
                        pnlPledge.Visible = true;
                        pnlEboard.Visible = false;
                        pnlSideBar.Visible = false;
                    }
                    lblLogin.Text = "Logged in as:  " + objDR["Fname"] + " " + objDR["Lname"];
                }
            }
        }
    }
</script>


   </asp:Content>
   <asp:Content ID="Content2" ContentPlaceHolderID="cphText" runat="server">
  <div id="mainContent">
    <h1> My Service Hours</h1>
    <p>&nbsp;</p>
    <table width="318" height="126" border="1" cellspacing="1">
      <caption>
        Event   Event Date   Hours
      </caption>
      <tr>
        <th width="100" scope="col">Polar Plunge</th>
        <th width="100" scope="col">1/13/12</th>
        <th width="100" scope="col">5 hrs</th>
      </tr>
    </table>
    <form id="form3" name="form2" method="post" action="">
      <label for="Totalhrs"></label>
      Total: 5hrs
    </form>
      <asp:GridView ID="grvServiceHours" DataSourceID="srcServiceHours" runat="server"/>
      <asp:SqlDataSource
        id="srcServiceHours"
        ConnectionString="<%$ ConnectionStrings:cloud2 %>"
        SelectCommand="select Event.Event_Name, Event.Event_Time, Event.Event_Type, Service_Hours.Hours, Service_Hours.Hours_Completed
                       from Event, Service_Hours, Person
                       where Event.EvID=Service_Hours.EvID and Person.UID=Service_Hours.UID and Person.Uname=@uname"
        Runat="server" />
    <p>&nbsp;</p>
    <!-- end #mainContent --></div>
    </asp:Content>

Answer 1

在主人中创建一个属性，并在内容页面的任何位置使用它而不是变量。通过在aspx页面中添加指令，可以在内容页面的任何位置访问母版页属性。

在基于会话登录时，基于数据库信息填充gridview

1 个答案: