栗色?蓝色?--Database类

The Neurotic Fishbowl

麦林发表于 2007/5/31 21:43:29

using System;using System.Data;using System.Data.SqlClient;using System.Configuration;using System.ComponentModel;using System.Diagnostics;using System.Collections;/// <summary>/// Data 的摘要说明/// </summary>public class Database : IDisposable { // connection to data source private SqlConnection con; public int RunProc(string procName) { SqlCommand cmd = CreateCommand(procName, null); cmd.ExecuteNonQuery(); this.Close(); return (int)cmd.Parameters["ReturnValue"].Value; } public int RunProc(string procName, SqlParameter[] prams) { SqlCommand cmd = CreateCommand(procName, prams); cmd.ExecuteNonQuery(); this.Close(); return (int)cmd.Parameters["ReturnValue"].Value; } public void RunProc(string procName, out SqlDataReader dataReader) { SqlCommand cmd = CreateCommand(procName, null); dataReader = cmd.ExecuteReader(System.Data.CommandBehavior.CloseConnection); } public void RunProc(string procName, SqlParameter[] prams, out SqlDataReader dataReader) { SqlCommand cmd = CreateCommand(procName, prams); dataReader = cmd.ExecuteReader(System.Data.CommandBehavior.CloseConnection); } public void RunProc(string procName, SqlParameter[] prams, out DataSet dataset) { SqlCommand cmd = CreateCommand(procName, prams); //create the DataAdapter SqlDataAdapter da = new SqlDataAdapter(cmd); //fill the DataSet using default values for DataTable names, etc. dataset = new DataSet(); da.Fill(dataset); this.Close(); } public void RunProc(string procName, out DataSet dataset) { SqlCommand cmd = CreateCommand(procName, null); //create the DataAdapter SqlDataAdapter da = new SqlDataAdapter(cmd); //fill the DataSet using default values for DataTable names, etc. dataset = new DataSet(); da.Fill(dataset); this.Close(); } private SqlCommand CreateCommand(string procName, SqlParameter[] prams) { // make sure connection is open Open(); //command = new SqlCommand( sprocName, new SqlConnection( ConfigManager.DALConnectionString ) ); SqlCommand cmd = new SqlCommand(procName, con); cmd.CommandType = CommandType.StoredProcedure; // add proc parameters if (prams != null) { foreach (SqlParameter parameter in prams) cmd.Parameters.Add(parameter); } // return param cmd.Parameters.Add( new SqlParameter("ReturnValue", SqlDbType.Int, 4, ParameterDirection.ReturnValue, false, 0, 0, string.Empty, DataRowVersion.Default, null)); return cmd; } private void Open() { // open connection if (con == null) { con = new SqlConnection(System.Configuration.ConfigurationManager.AppSettings["ConnectionString"]); con.Open(); } } public void Close() { if (con != null) con.Close(); } public void Dispose() { // make sure connection is closed if (con != null) { con.Dispose(); con = null; } } public SqlParameter MakeInParam(string ParamName, SqlDbType DbType, int Size, object Value) { return MakeParam(ParamName, DbType, Size, ParameterDirection.Input, Value); } public SqlParameter MakeOutParam(string ParamName, SqlDbType DbType, int Size) { return MakeParam(ParamName, DbType, Size, ParameterDirection.Output, null); } public SqlParameter MakeParam(string ParamName, SqlDbType DbType, Int32 Size, ParameterDirection Direction, object Value) { SqlParameter param; if(Size > 0) param = new SqlParameter(ParamName, DbType, Size); else param = new SqlParameter(ParamName, DbType); param.Direction = Direction; if (!(Direction == ParameterDirection.Output && Value == null)) param.Value = Value; return param; } }

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