日期:2014-05-18  浏览次数:20447 次

每次在后台代码里都要加上 using System.Data.SqlClient
每次在后台写代码里都要加上 using System.Data.SqlClient
在Web config文件里可以直接添加吗?

------解决方案--------------------
把你的数据库操作写成个类如
C# code

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;
using System.Threading;

/// <summary>
/// database 的摘要说明
/// </summary>
public class database
{
    public database()
    {
        //
        // TODO: 在此处添加构造函数逻辑
        //
    }
    public string MassageBox(string TxtMassage) {

        string str;
        str = "<script language=javascript>alert('" + TxtMassage + "')</script>";
        return str;
    }
    public Boolean Exect(string sQueryString) {

        SqlConnection conn = new SqlConnection(ConfigurationManager.AppSettings["conStr"]);
        conn.Open();
        SqlCommand cmd = new SqlCommand(sQueryString, conn);
        try
        {

            cmd.ExecuteNonQuery();
            conn.Close();
        }
        catch (System.Exception e) {

            conn.Close();
            return false;
        }
        return true;
    }
    public System.Data.DataSet GetDataSet(string sQueryString, string TableName) {

        SqlConnection conn = new SqlConnection(ConfigurationManager.AppSettings["conStr"]);
        conn.Open();
        SqlDataAdapter dbAdapter = new SqlDataAdapter(sQueryString, conn);
        DataSet ds = new DataSet();
        dbAdapter.Fill(ds, TableName);
        conn.Close();
        return ds;
    }
}