using System;
using System.Data ;
using System.Data.SqlClient ;
using System.Data.SqlTypes ;
using System.Windows.Forms ;
using System.Collections;
namespace Database
{
/// <summary>
/// Database 的摘要说明。
/// </summary>
public class Database
{
/// <summary>
/// 属性
/// </summary>
// public DataSet dataSet
// {
// get
// {
// return m_DataSet;
// }
//
// }
public Database()
{
//
// TODO: 在此处添加构造函数逻辑
//
XMLRead ConStr=new XMLRead();
if (ConStr.ReadAllConnectNode())
{
constr= ConStr.connstring ;
// try
// {
//
// Open();
// }
// catch(Exception Ex)
// {
// MessageBox.Show("数据库连接错误"+Ex.ToString () );
//
// }

}
else
{
constr="-1";
//throw new SqlErrorCollection();

}


}
// public bool Open()
// {
//
// mcn.ConnectionString = constr;
// try
// {
// mcn.Open();
//
// }
// catch( Exception)
// {
// return false;
// }
// return true;
// }
/// <summary>
/// 默认获取DataSet
/// </summary>
/// <param name="pMyTableName"></param>
/// <param name="tmpMyComputerName"></param>
/// <returns></returns>
// public virtual int getData (string pMyTableName ,string tmpMyComputerName)
// {
// return -1;
//
// }
#region ExecuteNonQuery

/// <summary>
/// 执行一个SQL Command(使用ConnectString)
/// </summary>
/// <param name="connString">ConnectString（Sql连接字符串）</param>
/// <param name="cmdType">Command类型</param>
/// <param name="cmdText">Command的语句（SQL语句）</param>
/// <param name="cmdParms">Command的参数（SqlParameter[]数组类型）</param>
/// <returns>Command的返回值（受影响的行数）</returns>

public int ExecuteNonQuery(string connString, CommandType cmdType, string cmdText, params SqlParameter[] cmdParms)
{
SqlCommand cmd = new SqlCommand();

using (SqlConnection conn = new SqlConnection(connString))
{
PrepareCommand(cmd, conn, null, cmdType, cmdText, cmdParms);
int val = cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
return val;
}
}
/// <summary>
/// 执行一个SQL Command(使用隐含的ConnectString)
/// </summary>
/// <param name="cmdType">Command类型</param>
/// <param name="cmdText">Command的语句（SQL语句）</param>
/// <param name="cmdParms">Command的参数（SqlParameter[]数组类型）</param>
/// <returns>Command的返回值（受影响的行数）</returns>
public int ExecuteNonQuery(CommandType cmdType, string cmdText, params SqlParameter[] cmdParms)
{
SqlCommand cmd = new SqlCommand();

using (SqlConnection conn = new SqlConnection(constr))
{
PrepareCommand(cmd, conn, null, cmdType, cmdText, cmdParms);
int val = cmd.ExecuteNonQuery();
cmd.Parameters.Clear();
return val;
}
}

// public static int ExecuteNonQuery(string cmdText)
// {
// }

/// <summary>
/// 执行一个简单的查询, 只需要输入SQL语句, 一般用于更新或者删除
/// </summary>
/// <param