WM DBHelp类

allen0118 2011-10-07 10:11:50

通过VS2008新建的智能设备项目，操作SQL2000/2005的数据库，如果全部用SQL 语句是可以的，但是我有很多的复杂关系需要通过存储过程来实现，可是我发现Windows Mobile里面连Parameters.AddRange这个方法都没有，哪位朋友有这方面的操作类请发一个给我，类似下面的这一段代码，下面的代码是CS和BS里面用到的，感谢！

using System.Net.Mime;
using DBUtility;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Data;
using System;

namespace DAL
{
public class DALHelper
{

private SqlConnection connection;
public SqlConnection Connection
{
get
{
string connectionString = @"server=.;database=DemoDB;uid=sa;pwd=123456";

if (connection == null)
{
connection = new SqlConnection(connectionString);
connection.Open();
}
else if (connection.State == System.Data.ConnectionState.Closed)
{
connection.Open();
}
else if (connection.State == System.Data.ConnectionState.Broken)
{
connection.Close();
connection.Open();
}
return connection;
}
}

public int ExecuteCommand(string safeSql)
{
SqlCommand cmd = new SqlCommand(safeSql, Connection);
int result = cmd.ExecuteNonQuery();
return result;
}

public int ExecuteCommand(string sql, params SqlParameter[] values)
{
SqlCommand cmd = new SqlCommand(sql, Connection);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddRange(values);
return cmd.ExecuteNonQuery();
}

public string GetScalar(string safeSql)
{
SqlCommand cmd = new SqlCommand(safeSql, Connection);
string result = cmd.ExecuteScalar().ToString();
return result;
}

public string GetScalar(string sql, params SqlParameter[] values)
{
SqlCommand cmd = new SqlCommand(sql, Connection);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddRange(values);
string result = cmd.ExecuteScalar().ToString();
return result;
}

public SqlDataReader GetReader(string safeSql)
{
SqlCommand cmd = new SqlCommand(safeSql, Connection);
SqlDataReader reader = cmd.ExecuteReader();
return reader;
}

public SqlDataReader GetReader(string sql, params SqlParameter[] values)
{
SqlCommand cmd = new SqlCommand(sql, Connection);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddRange(values);
SqlDataReader reader = cmd.ExecuteReader();
return reader;
}

public DataTable GetDataSet(string safeSql)
{
DataSet ds = new DataSet();
SqlCommand cmd = new SqlCommand(safeSql, Connection);
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(ds);
return ds.Tables[0];
}

public DataTable GetDataSet(string sql, params SqlParameter[] values)
{
DataSet ds = new DataSet();
SqlCommand cmd = new SqlCommand(sql, Connection);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddRange(values);
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(ds);
return ds.Tables[0];
}

/// <summary>
/// 返回一个数据集，从里面取出不同的表
/// </summary>
/// <param name="sql"></param>
/// <param name="values"></param>
/// <returns></returns>
public DataSet GetDataSet3(string sql, params SqlParameter[] values)
{
DataSet ds = new DataSet();
SqlCommand cmd = new SqlCommand(sql, Connection);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.AddRange(values);
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(ds);
return ds;
}

}
}

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