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Visual C++

SqlData.cs：源码内容
							﻿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;
//添加引用空间
using System.Data.SqlClient;
/// <summary>
/// SqlData 的摘要说明
/// </summary>
public class SqlData
{
	public SqlData()
	{
		//
		// TODO: 在此处添加构造函数逻辑
		//
	}
    /// <summary>
    /// 连接数据库
    /// </summary>
    /// <returns></returns>
    public SqlConnection ExceCon()
    {
        SqlConnection Con = new SqlConnection(ConfigurationManager.AppSettings["ConSQL"]);
        Con.Open();
        return Con;
    }
    #region
    /// <summary>
    /// 绑定GridView控件
    /// </summary>
    /// <param name="dl">要绑定的GridView控件</param>
    /// <param name="cmdtxt">要执行的SQL语句</param>
    /// <param name="tblName">绑定的数据表名</param>
    /// <returns></returns>
    public bool BindData(GridView dl, string cmdtxt,string tblName)
    {
        dl.DataSource = this.ExceDS(cmdtxt,tblName);
        try
        {
            dl.DataBind();
            return true;
        }
        catch
        {
            return false;
        }
        finally
        {
            ExceCon().Close();
        }
    }
    #endregion
    #region
    /// <summary>
    /// 返回一个DataSet数据类型的数据
    /// </summary>
    /// <param name="cmdtxt">要执行的SQL语句</param>
    /// <param name="tblName">要绑定的数据表</param>
    /// <returns></returns>
    public DataSet ExceDS(string cmdtxt,string tblName)
    {
        SqlConnection Con = ExceCon();
        SqlCommand Com;
        DataSet ds=null;
        try
        {
            Com = new SqlCommand(cmdtxt, Con);
            SqlDataAdapter Da = new SqlDataAdapter();
            Da.SelectCommand = Com;
            ds = new DataSet(tblName);
            Da.Fill(ds);
        }
        catch (Exception ex)
        {
            Con.Close();
        }
        return ds;
    }
    #endregion
    #region
    /// <summary>
    /// 执行SQL语句
    /// </summary>
    /// <param name="cmdtxt">要执行的SQL语句</param>
    /// <returns></returns>
    public bool ExceSQL(string cmdtxt)
    {
        SqlCommand Com = new SqlCommand(cmdtxt, ExceCon());
        try
        {
            Com.ExecuteNonQuery();
            return true;
        }
        catch
        {
            return false;
        }
        finally
        {
            ExceCon().Close();
        }
    }
    #endregion
    /// <summary>
    /// 返回SqlDataReader数据类型
    /// </summary>
    /// <param name="cmdtxt">要执行的SQL语句</param>
    /// <returns></returns>
    public SqlDataReader ExceDr(string cmdtxt)
    {
        SqlCommand Com = new SqlCommand(cmdtxt, ExceCon());
        SqlDataReader dr = Com.ExecuteReader();
        return dr;
    }
}

						