SQLHelper.cs

/// <summary>
///連接數據庫字符串
///塗聚文 2011-09-25
///締友計算機信息技術有限公司
/// </summary>
private static string connectionString;

/// <summary>
///
/// </summary>
static DBHelper()
{
DataSetingConfig dbconnection = new DataSetingConfig();
dbconnection.GetConString();//讀文件內空中的連按字符串
connectionString = DataSetingConfig.conStr;//@"Data Source=.;Initial Catalog=GeovinDuHr;User ID=sa;Password=8888888";
}
/// <summary>
///
/// </summary>
/// <param name="hasOpen"></param>
/// <returns></returns>
public static SqlConnection GetConnection(bool hasOpen)
{
SqlConnection conn = new SqlConnection(connectionString);
if (hasOpen)
conn.Open();
return conn;
}
/// <summary>
///
///塗聚文 2011-09-25
///締友計算機信息技術有限公司
/// </summary>
/// <param name="sql"></param>
/// <param name="cmdType"></param>
/// <param name="sqlParams"></param>
/// <returns></returns>
public static SqlDataReader GetReader(string sql, CommandType cmdType, params SqlParameter[] sqlParams)
{
SqlCommand cmd = new SqlCommand();
cmd.CommandType = cmdType;
cmd.CommandText = sql;
if (sqlParams != null)
cmd.Parameters.AddRange(sqlParams);
SqlConnection conn = GetConnection(true);
cmd.Connection = conn;
return cmd.ExecuteReader(CommandBehavior.CloseConnection);
}
/// <summary>
///
///塗聚文 2011-09-25
///締友計算機信息技術有限公司
/// </summary>
/// <param name="sql"></param>
/// <param name="cmdType"></param>
/// <param name="sqlParams"></param>
/// <returns></returns>
public static Object GetObject(string sql, CommandType cmdType, params SqlParameter[] sqlParams)
{
object ret = null;
SqlCommand cmd = new SqlCommand();
cmd.CommandType = cmdType;
cmd.CommandText = sql;
if (sqlParams != null)
cmd.Parameters.AddRange(sqlParams);
SqlConnection conn = GetConnection(true);
cmd.Connection = conn;
try
{
ret = cmd.ExecuteScalar();
}
finally
{
conn.Close();
}
return ret;
}
/// <summary>
///
///塗聚文 2011-09-25
///締友計算機信息技術有限公司
/// </summary>
/// <param name="sql"></param>
/// <param name="cmdType"></param>
/// <param name="sqlParams"></param>
/// <returns></returns>
public static int ExecuteSql(string sql, CommandType cmdType, params SqlParameter[] sqlParams)
{
int ret = 0;
SqlCommand cmd = new SqlCommand();
cmd.CommandType = cmdType;
cmd.CommandText = sql;
if (sqlParams != null)
cmd.Parameters.AddRange(sqlParams);
SqlConnection conn = GetConnection(true);
cmd.Connection = conn;
try
{
ret = cmd.ExecuteNonQuery();
}
finally
{
conn.Close();
}
return ret;
}
/// <summary>
///
///塗聚文 2011-09-25
///締友計算機信息技術有限公司
/// </summary>
/// <param name="sql"></param>
/// <param name="cmdType"></param>
/// <param name="sqlParams"></param>
/// <returns></returns>
public static DataTable GetTable(string sql, CommandType cmdType, params SqlParameter[] sqlParams)
{
DataTable dt = new DataTable();
SqlCommand cmd = new SqlCommand();
cmd.CommandType = cmdType;
cmd.CommandText = sql;
if (sqlParams != null)
cmd.Parameters.AddRange(sqlParams);
SqlConnection conn = GetConnection(true);
cmd.Connection = conn;
SqlDataAdapter da = new SqlDataAdapter(cmd);
try
{
da.Fill(dt);
}
finally
{
conn.Close();
}
return dt;
}
/// <summary>
///
///塗聚文 2011-09-25
///締友計算機信息技術有限公司
/// </summary>
/// <param name="sql"></param>
/// <param name="cmdType"></param>
/// <param name="sqlParams"></param>
/// <returns></returns>
public static DataSet GetDataSet(string sql, CommandType cmdType, params SqlParameter[] sqlParams)
{
DataSet dt = new DataSet();
SqlCommand cmd = new SqlCommand();
cmd.CommandType = cmdType;
cmd.CommandText = sql;
if (sqlParams != null)
cmd.Parameters.AddRange(sqlParams);
SqlConnection conn = GetConnection(true);
cmd.Connection = conn;
SqlDataAdapter da = new SqlDataAdapter(cmd);
try
{
da.Fill(dt);
}
finally
{
conn.Close();
}
return dt;
}