一个类调用另一个类的问题

[weiqiaoxyz]

Global_Class.cs
---------------------
public class Global_Class
{
public string strMessage;

public class Class
{
public static void Response_End(string strMessage)
{
HttpContext.Current.Response.Write(strMessage);
HttpContext.Current.Response.End();
}

public readonly static string strConn = Get_Conn();

private static string Get_Conn()
{
string strConn = "";

try
{
strConn = ConfigurationManager.ConnectionStrings["连接数据库"].ToString();
}
catch
{
Response_End("数据库连接配置错误!");
}

return strConn;
}
}
}

Register.cs
-----------------
public class Register
{
public void Check_Person(out string strMessage, string personname)
{
SqlConnection conn = new SqlConnection(strConn);
conn.Open();
SqlTransaction tran = conn.BeginTransaction();
SqlCommand comm = new SqlCommand("Register_Check", conn);
comm.Transaction = tran;

try
{
comm.CommandType = CommandType.StoredProcedure;
comm.Parameters.Add("@strMessage", SqlDbType.NVarChar, 1000).Direction = ParameterDirection.Output;
comm.Parameters.Add("@personname", SqlDbType.NVarChar, 50).Value = personname;
comm.ExecuteNonQuery();

strMessage = comm.Parameters["@strMessage"].Value.ToString();
tran.Commit();
}
catch (Exception Message)
{
strMessage = "连接服务失败，详细(" + Message.Message.ToString() + ")";
tran.Rollback();
}

conn.Close();
}
}



问题是:这样提示Register.cs错误
11 当前上下文中不存在名称“strConn” F:\vs2005\App_Code\Register.cs


这是怎么回事???

[phper2008]

欠套类：
public string strMessage;
//将这个变量放欠套类外部
public readonly static string strConn = Class.Get_Conn();
public class Class
{

}

那个Register就可以不改了！

[gen06]

......
是類中類

[weiqiaoxyz]

[Quote=引用 16 楼 leaohong 的回复:]
汗里面还有类啊
public class Register
{
public void Check_Person(out string strMessage, string personname)
{
Global_Class glbClass = new Global_Class();
strConn=glbClass.class.strConn;
SqlConnection conn = new SqlConnection(strConn);
conn.Open();
SqlTransaction tran = conn.BeginTransaction();
SqlCommand comm = ne…
[/Quote]

glbClass.后面没有CLASS...


郁闷了...


TO:phper2008

按你的也不行..

[weiqiaoxyz]

MARK...

顶

[leaohong]

类中套类干吗,把public class Class 去掉,
用public class Register
{
public void Check_Person(out string strMessage, string personname)
{
Global_Class glbClass = new Global_Class();
strConn=glbClass.strConn;
SqlConnection conn = new SqlConnection(strConn);

[weiqiaoxyz]

[Quote=引用 22 楼 leaohong 的回复:]
类中套类干吗,把public class Class 去掉,
用public class Register
{
public void Check_Person(out string strMessage, string personname)
{
Global_Class glbClass = new Global_Class();
strConn=glbClass.strConn;
SqlConnection conn = new SqlConnection(strConn);
[/Quote]

改了还是不行...

同样提示3楼的错误!

[leaohong]

Global_Class.cs 
--------------------- 
public class Global_Class 
{ 
    public string strMessage; 

        public static void Response_End(string strMessage) 
        { 
            HttpContext.Current.Response.Write(strMessage); 
            HttpContext.Current.Response.End(); 
        } 

        static string strConn = Get_Conn(); 

        private static string Get_Conn() 
        { 
            string strConn = ""; 

            try 
            { 
                strConn = ConfigurationManager.ConnectionStrings["连接数据库"].ToString(); 
            } 
            catch 
            { 
                Response_End("数据库连接配置错误!"); 
            } 

            return strConn; 
        } 
    
} 

Register.cs 
----------------- 
public class Register 
{ 
    public void Check_Person(out string strMessage, string personname) 
    { 
        Global_Class glbClass = new Global_Class();      
        strConn=glbClass.strConn;     

        SqlConnection conn = new SqlConnection(strConn); 
conn.Open(); 
        SqlTransaction tran = conn.BeginTransaction(); 
        SqlCommand comm = new SqlCommand("Register_Check", conn); 
        comm.Transaction = tran; 

        try 
        { 
            comm.CommandType = CommandType.StoredProcedure; 
            comm.Parameters.Add("@strMessage", SqlDbType.NVarChar, 1000).Direction = ParameterDirection.Output; 
            comm.Parameters.Add("@personname", SqlDbType.NVarChar, 50).Value = personname; 
            comm.ExecuteNonQuery(); 

            strMessage = comm.Parameters["@strMessage"].Value.ToString(); 
            tran.Commit(); 
        } 
        catch (Exception Message) 
        { 
            strMessage = "连接服务失败，详细(" + Message.Message.ToString() + ")"; 
            tran.Rollback(); 
        } 

        conn.Close(); 
    } 
} 

这样总行了吧?

[weiqiaoxyz]

顶顶顶...

[钊xsun]

[Quote=引用 23 楼 weiqiaoxyz 的回复:]
引用 22 楼 leaohong 的回复:
类中套类干吗,把public class Class 去掉,
用public class Register
{
public void Check_Person(out string strMessage, string personname)
{
Global_Class glbClass = new Global_Class();
strConn=glbClass.strConn;
SqlConnection conn = new SqlConnection(strConn);


改了还是不行...

同样提示…
[/Quote]
大哥,你这样做,肯定行,我帮你测试通过了,可以找得到strconn,至于其他方面的话,那就要看你自己写的对不对了.
public void Check_Person(out string strMessage, string personname)
{
SqlConnection conn = new SqlConnection(Global_Class.Class.strConn);
conn.Open();
SqlTransaction tran = conn.BeginTransaction();
SqlCommand comm = new SqlCommand("Register_Check", conn);
comm.Transaction = tran;

try
{
comm.CommandType = CommandType.StoredProcedure;
comm.Parameters.Add("@strMessage", SqlDbType.NVarChar, 1000).Direction = ParameterDirection.Output;
comm.Parameters.Add("@personname", SqlDbType.NVarChar, 50).Value = personname;
comm.ExecuteNonQuery();

strMessage = comm.Parameters["@strMessage"].Value.ToString();
tran.Commit();
}
catch (Exception Message)
{
strMessage = "连接服务失败，详细(" + Message.Message.ToString() + ")";
tran.Rollback();
}

conn.Close();
}
是这句:Global_Class.Class.strConn你去试下

[weiqiaoxyz]

Global_Class glbClass = new Global_Class();
strConn=glbClass.strConn;

这个地方的得加string吧??

加了以后就出错..

不加就提示
1 当前上下文中不存在名称“strConn” F:\vs2005\App_Code\Register.cs 65 9 http://localhost:82/

[钊xsun]

你都不看我说的,那没办法了.你接着想吧

[gen06]

Global_Class.strConn=glbClass.strConn;

[gen06]

搞錯了

[yunfeng007]

[Quote=引用 3 楼 weiqiaoxyz 的回复:]
引用 2 楼 ysn1314 的回复:
Global_Class.strConn 这样写才对吧？
直接写strConn当然提示找不到了~


点不出来.
Global_Class.Class.strConn只有这样..但这样又提示其他的错误了:

错误 1 “ASP.aspx_register_aspx.GetTypeHashCode()”: 没有找到适合的方法来重写 c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\root\f9a11ab1\4a908546\App_Web_rratmemb.2.cs 171

错误 2 “ASP.a…
[/Quote]

提示你这样的错误，你增加命名空间的了吧？
你看看这篇文章吧
http://www.cnblogs.com/sliuqin/archive/2007/05/24/757947.html

[skyaspnet]

加QQ 343397317, 我看一下, 看能帮上你不, 帖子看得太吃力

[skyaspnet]

我改写了, 你的写法有比较多的问题, 其实很简单就可实现

Global_Class.cs

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

/// <summary>
/// Global_Class 的摘要说明
/// </summary>
public class Global_Class
{
    public string strMessage;
    public string strConn;

    public Global_Class()   //构造函数内初始化值
    {
        strConn = ConfigurationManager.ConnectionStrings["连接数据库"].ToString();
    }

    public static void Response_End(string strMessage)
    {
        HttpContext.Current.Response.Write(strMessage);
        HttpContext.Current.Response.End();
    }
}

Register.cs

using System;
using System.Data;
using System.Configuration;
using System.Web;
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;

/// <summary>
/// Register 的摘要说明
/// </summary>
public class Register
{
    public void Check_Person(out string strMessage, string personname)
    {
        Global_Class glb = new Global_Class();
        SqlConnection conn = new SqlConnection(glb.strConn);
        conn.Open();
        SqlTransaction tran = conn.BeginTransaction();
        SqlCommand comm = new SqlCommand("Register_Check", conn);
        comm.Transaction = tran;

        try
        {
            comm.CommandType = CommandType.StoredProcedure;
            comm.Parameters.Add("@strMessage", SqlDbType.NVarChar, 1000).Direction = ParameterDirection.Output;
            comm.Parameters.Add("@personname", SqlDbType.NVarChar, 50).Value = personname;
            comm.ExecuteNonQuery();

            strMessage = comm.Parameters["@strMessage"].Value.ToString();
            tran.Commit();
        }
        catch (Exception Message)
        {
            strMessage = "连接服务失败，详细(" + Message.Message.ToString() + ")";
            tran.Rollback();
        }

        conn.Close();
    }
}

我这边已经调试通过, 你试一下

[net_xiaojian]

能写出这东西？

"Response_End("数据库连接配置错误!"); "

[net_xiaojian]

看快了点。顶楼上楼上的。

[feiyezi]

把你的cs文件都放到你项目文件的app_code文件夹里面(没有就新建一个文件夹)
试试看

[justxd]

[Quote=引用 35 楼 net_xiaojian 的回复:]
看快了点。顶楼上楼上的。
[/Quote]