Question

您好我在Connection.cs类中创建了以下命名空间。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data;
using System.Configuration;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;

namespace conn
{
public class Connection
{
public SqlConnection con;
public SqlCommand cmd;
//public SqlDataAdapter adt;

string StrError;

public Connection()
{
try
{
con = new SqlConnection(ConfigurationManager.ConnectionStrings["PortfolioMgt"].ConnectionString);
}
catch (SqlException sqlEx)
{
StrError = sqlEx.Message;
}
catch (Exception ex)
{
StrError = ex.Message;
}
}

public void Open_Connection()
{
try
{
con.Open();
}
catch (SqlException sqlEx)
{
StrError = sqlEx.Message;
}
catch (Exception ex)
{
StrError = ex.Message;
}
}
public void Close_Connection()
{
try
{
con.Close();
}
catch (SqlException sqlEx)
{
StrError = sqlEx.Message;
}
catch (Exception ex)
{
StrError = ex.Message;
}
}
}
}

我想在Login.aspx.cs页面上使用自定义命名空间（conn）。登录页面的代码如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using conn;

public partial class Login : System.Web.UI.Page
{
    Connection con = new Connection();
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void btnLogin_Click(object sender, EventArgs e)
    {
        int investorId;
        investorId=con.select_Inv_Login(txtUserName.Text, txtPassword.Text);

        if(investorId!=0)
        {
            Session["inv_id"] = investorId;
            Response.Redirect("~/MyProfile.aspx");
        }
        else
        {
            lblMsg.Visible = true;
            lblMsg.Text = "User Name or Password incorrect";
        }
    }
}

一旦我尝试写'使用conn;'它给了我以下错误：找不到类型或命名空间名称'conn'（您是否缺少using指令或程序集引用？）

Answer 1

尝试using yourProjName.App_Code.conn

Answer 2

Yippey !!!它解决了。类构建操作未设置为编译类型。这是内容类型所以它给出了错误。

我无法在aspx.cs页面上的intelliSense中找到命名空间

2 个答案: