復制代碼 代碼如下:
using System;
using System.Collections;
using System.Collections.Specialized;
using System.Data;
using System.Data.SqlClient;
using System.Data.OleDb;
using System.Data.OracleClient;
using System.Configuration;
using System.Reflection;
namespace SystemFramework.DAL
{
/**//// <summary>
/// All rights reserved
/// 數據訪問基礎類
/// 用戶可以修改滿足自己項目的需要。
/// </summary>
public class DataBaseLayer
{
//數據庫連接字符串(web.config來配置)
//<add key="ConnectionString" value="server=127.0.0.1;database=DATABASE;uid=sa;pwd=" />
private string connectionString;
public string ConntionString
{
get
{
return connectionString ;
}
set
{
connectionString = value;
}
}
public DataBaseLayer(string strConnect,string dataType)
{
this.ConntionString = strConnect;
this.DbType = dataType;
}
public DataBaseLayer()
{
this.connectionString = ConfigurationSettings.AppSettings["ConnectionString"] ;
this.dbType = ConfigurationSettings.AppSettings["DataType"] ;
}
/**//// <summary>
/// 數據庫類型
/// </summary>
private string dbType;
public string DbType
{
get
{
if ( dbType == string.Empty || dbType == null )
{
return "Access";
}
else
{
return dbType;
}
}
set
{
if ( value != string.Empty && value != null )
{
dbType = value;
}
if (dbType ==string.Empty || dbType == null)
{
dbType = ConfigurationSettings.AppSettings["DataType"];
}
if ( dbType == string.Empty || dbType == null )
{
dbType = "Access";
}
}
}
轉換參數#region 轉換參數
private System.Data.IDbDataParameter iDbPara(string ParaName,string DataType)
{
switch(this.DbType)
{
case "SqlServer":
return GetSqlPara(ParaName,DataType);
case "Oracle":
return GetOleDbPara(ParaName,DataType);
case "Access":
return GetOleDbPara(ParaName,DataType);
default :
return GetSqlPara(ParaName,DataType);
}
}
private System.Data.SqlClient.SqlParameter GetSqlPara( string ParaName , string DataType)
{
switch(DataType)
{
case "Decimal":
return new System.Data.SqlClient.SqlParameter ( ParaName, System.Data.SqlDbType.Decimal );
case "Varchar":
return new System.Data.SqlClient.SqlParameter ( ParaName, System.Data.SqlDbType.VarChar );
case "DateTime":
return new System.Data.SqlClient.SqlParameter ( ParaName, System.Data.SqlDbType.DateTime );
case "Iamge":
return new System.Data.SqlClient.SqlParameter ( ParaName, System.Data.SqlDbType.Image );
case "Int":
return new System.Data.SqlClient.SqlParameter ( ParaName, System.Data.SqlDbType.Int );
case "Text":
return new System.Data.SqlClient.SqlParameter ( ParaName, System.Data.SqlDbType.NText );
default :
return new System.Data.SqlClient.SqlParameter ( ParaName, System.Data.SqlDbType.VarChar );
}
}
private System.Data.OracleClient.OracleParameter GetOraclePara( string ParaName , string DataType)
{
switch(DataType)
{
case "Decimal":
return new System.Data.OracleClient.OracleParameter( ParaName, System.Data.OracleClient.OracleType.Double);
case "Varchar":
return new System.Data.OracleClient.OracleParameter ( ParaName, System.Data.OracleClient.OracleType.VarChar );
case "DateTime":
return new System.Data.OracleClient.OracleParameter ( ParaName, System.Data.OracleClient.OracleType.DateTime );
case "Iamge":
return new System.Data.OracleClient.OracleParameter ( ParaName, System.Data.OracleClient.OracleType.BFile );
case "Int":
return new System.Data.OracleClient.OracleParameter ( ParaName, System.Data.OracleClient.OracleType.Int32 );
case "Text":
return new System.Data.OracleClient.OracleParameter ( ParaName, System.Data.OracleClient.OracleType.LongVarChar );
default:
return new System.Data.OracleClient.OracleParameter ( ParaName, System.Data.OracleClient.OracleType.VarChar );
}
}
private System.Data.OleDb.OleDbParameter GetOleDbPara( string ParaName , string DataType)
{
switch(DataType)
{
case "Decimal":
return new System.Data.OleDb.OleDbParameter( ParaName, System.Data.DbType.Decimal);
case "Varchar":
return new System.Data.OleDb.OleDbParameter ( ParaName, System.Data.DbType.String );
case "DateTime":
return new System.Data.OleDb.OleDbParameter ( ParaName, System.Data.DbType.DateTime );
case "Iamge":
return new System.Data.OleDb.OleDbParameter( ParaName, System.Data.DbType.Binary );
case "Int":
return new System.Data.OleDb.OleDbParameter ( ParaName, System.Data.DbType.Int32 );
case "Text":
return new System.Data.OleDb.OleDbParameter ( ParaName, System.Data.DbType.String );
default:
return new System.Data.OleDb.OleDbParameter ( ParaName, System.Data.DbType.String );
}
}
#endregion
創建 Connection 和 Command#region 創建 Connection 和 Command
private IDbConnection GetConnection()
{
switch(this.DbType)
{
case "SqlServer":
return new System.Data.SqlClient.SqlConnection(this.ConntionString);
case "Oracle":
return new System.Data.OracleClient.OracleConnection(this.ConntionString);
case "Access":
return new System.Data.OleDb.OleDbConnection(this.ConntionString);
default:
return new System.Data.SqlClient.SqlConnection(this.ConntionString);
}
}
private IDbCommand GetCommand(string Sql,IDbConnection iConn)
{
switch(this.DbType)
{
case "SqlServer":
return new System.Data.SqlClient.SqlCommand(Sql,(SqlConnection)iConn);
case "Oracle":
return new System.Data.OracleClient.OracleCommand(Sql,(OracleConnection)iConn);
case "Access":
return new System.Data.OleDb.OleDbCommand(Sql,(OleDbConnection)iConn);
default:
return new System.Data.SqlClient.SqlCommand(Sql,(SqlConnection)iConn);
}
}
private IDbCommand GetCommand()
{
switch(this.DbType)
{
case "SqlServer":
return new System.Data.SqlClient.SqlCommand();
case "Oracle":
return new System.Data.OracleClient.OracleCommand();
case "Access":
return new System.Data.OleDb.OleDbCommand();
default:
return new System.Data.SqlClient.SqlCommand();
}
}
private IDataAdapter GetAdapater(string Sql,IDbConnection iConn)
{
switch(this.DbType)
{
case "SqlServer":
return new System.Data.SqlClient.SqlDataAdapter(Sql,(SqlConnection)iConn);
case "Oracle":
return new System.Data.OracleClient.OracleDataAdapter(Sql,(OracleConnection)iConn);
case "Access":
return new System.Data.OleDb.OleDbDataAdapter(Sql,(OleDbConnection)iConn);
default:
return new System.Data.SqlClient.SqlDataAdapter(Sql,(SqlConnection)iConn);;
}
}
private IDataAdapter GetAdapater()
{
switch(this.DbType)
{
case "SqlServer":
return new System.Data.SqlClient.SqlDataAdapter();
case "Oracle":
return new System.Data.OracleClient.OracleDataAdapter();
case "Access":
return new System.Data.OleDb.OleDbDataAdapter();
default:
return new System.Data.SqlClient.SqlDataAdapter();
}
}
private IDataAdapter GetAdapater(IDbCommand iCmd)
{
switch(this.DbType)
{
case "SqlServer":
return new System.Data.SqlClient.SqlDataAdapter((SqlCommand)iCmd);
case "Oracle":
return new System.Data.OracleClient.OracleDataAdapter((OracleCommand)iCmd);
case "Access":
return new System.Data.OleDb.OleDbDataAdapter((OleDbCommand)iCmd);
default:
return new System.Data.SqlClient.SqlDataAdapter((SqlCommand)iCmd);
}
}
#endregion
執行簡單SQL語句#region 執行簡單SQL語句
/**//// <summary>
/// 執行SQL語句，返回影響的記錄數
/// </summary>
/// <param name="SQLString">SQL語句</param>
/// <returns>影響的記錄數</returns>
public int ExecuteSql(string SqlString)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
using (System.Data.IDbCommand iCmd = GetCommand(SqlString,iConn))
{
iConn.Open();
try
{
int rows=iCmd.ExecuteNonQuery();
return rows;
}
catch(System.Exception E)
{
throw new Exception(E.Message);
}
finally
{
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
}
}
}
/**//// <summary>
/// 執行多條SQL語句，實現數據庫事務。
/// </summary>
/// <param name="SQLStringList">多條SQL語句</param>
public void ExecuteSqlTran(ArrayList SQLStringList)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
iConn.Open();
using(System.Data.IDbCommand iCmd = GetCommand())
{
iCmd.Connection=iConn;
using(System.Data.IDbTransaction iDbTran = iConn.BeginTransaction())
{
iCmd.Transaction=iDbTran;
try
{
for(int n=0;n<SQLStringList.Count;n++)
{
string strsql = SQLStringList[n].ToString();
if ( strsql.Trim().Length>1)
{
iCmd.CommandText = strsql;
iCmd.ExecuteNonQuery();
}
}
iDbTran.Commit();
}
catch(System.Exception E)
{
iDbTran.Rollback();
throw new Exception(E.Message);
}
finally
{
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
}
}
}
}
/**//// <summary>
/// 執行帶一個存儲過程參數的的SQL語句。
/// </summary>
/// <param name="SQLString">SQL語句</param>
/// <param name="content">參數內容,比如一個字段是格式復雜的文章，有特殊符號，可以通過這個方式添加</param>
/// <returns>影響的記錄數</returns>
public int ExecuteSql(string SqlString,string content)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
using(System.Data.IDbCommand iCmd = GetCommand(SqlString,iConn))
{
System.Data.IDataParameter myParameter = this.iDbPara( "@content", "Text");
myParameter.Value = content ;
iCmd.Parameters.Add(myParameter);
iConn.Open();
try
{
int rows = iCmd.ExecuteNonQuery();
return rows;
}
catch( System.Exception e )
{
throw new Exception(e.Message);
}
finally
{
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
}
}
}
/**//// <summary>
/// 向數據庫裡插入圖像格式的字段(和上面情況類似的另一種實例)
/// </summary>
/// <param name="strSQL">SQL語句</param>
/// <param name="fs">圖像字節,數據庫的字段類型為image的情況</param>
/// <returns>影響的記錄數</returns>
public int ExecuteSqlInsertImg(string SqlString,byte[] fs)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
using(System.Data.IDbCommand iCmd = GetCommand(SqlString,iConn))
{
System.Data.IDataParameter myParameter = this.iDbPara( "@content", "Image");
myParameter.Value = fs ;
iCmd.Parameters.Add(myParameter);
iConn.Open();
try
{
int rows = iCmd.ExecuteNonQuery();
return rows;
}
catch( System.Exception e )
{
throw new Exception(e.Message);
}
finally
{
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
}
}
}
/**//// <summary>
/// 執行一條計算查詢結果語句，返回查詢結果（object）。
/// </summary>
/// <param name="SQLString">計算查詢結果語句</param>
/// <returns>查詢結果（object）</returns>
public object GetSingle(string SqlString)
{
using (System.Data.IDbConnection iConn = GetConnection())
{
using (System.Data.IDbCommand iCmd = GetCommand(SqlString,iConn))
{
iConn.Open();
try
{
object obj = iCmd.ExecuteScalar();
if((Object.Equals(obj,null))||(Object.Equals(obj,System.DBNull.Value)))
{
return null;
}
else
{
return obj;
}
}
catch(System.Exception e)
{
throw new Exception(e.Message);
}
finally
{
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
}
}
}
/**//// <summary>
/// 執行查詢語句，返回IDataAdapter
/// </summary>
/// <param name="strSQL">查詢語句</param>
/// <returns>IDataAdapter</returns>
public IDataAdapter ExecuteReader(string strSQL)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
iConn.Open();
try
{
System.Data.IDataAdapter iAdapter = this.GetAdapater(strSQL,iConn);
return iAdapter;
}
catch(System.Exception e)
{
throw new Exception(e.Message);
}
finally
{
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
}
}
/**//// <summary>
/// 執行查詢語句，返回DataSet
/// </summary>
/// <param name="SQLString">查詢語句</param>
/// <returns>DataSet</returns>
public DataSet Query(string sqlString)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
using(System.Data.IDbCommand iCmd = GetCommand(sqlString,iConn))
{
DataSet ds = new DataSet();
iConn.Open();
try
{
System.Data.IDataAdapter iAdapter = this.GetAdapater(sqlString,iConn);
iAdapter.Fill(ds);
return ds;
}
catch(System.Exception ex)
{
throw new Exception(ex.Message);
}
finally
{
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
}
}
}
/**//// <summary>
/// 執行查詢語句，返回DataSet
/// </summary>
/// <param name="sqlString">查詢語句</param>
/// <param name="dataSet">要填充的DataSet</param>
/// <param name="tableName">要填充的表名</param>
/// <returns>DataSet</returns>
public DataSet Query(string sqlString,DataSet dataSet,string tableName)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
using(System.Data.IDbCommand iCmd = GetCommand(sqlString,iConn))
{
iConn.Open();
try
{
System.Data.IDataAdapter iAdapter = this.GetAdapater(sqlString,iConn);
((OleDbDataAdapter)iAdapter).Fill(dataSet,tableName);
return dataSet;
}
catch(System.Exception ex)
{
throw new Exception(ex.Message);
}
finally
{
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
}
}
}
/**//// <summary>
/// 執行SQL語句 返回存儲過程
/// </summary>
/// <param name="sqlString">Sql語句</param>
/// <param name="dataSet">要填充的DataSet</param>
/// <param name="startIndex">開始記錄</param>
/// <param name="pageSize">頁面記錄大小</param>
/// <param name="tableName">表名稱</param>
/// <returns>DataSet</returns>
public DataSet Query(string sqlString , DataSet dataSet ,int startIndex ,int pageSize, string tableName )
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
iConn.Open();
try
{
System.Data.IDataAdapter iAdapter = this.GetAdapater(sqlString,iConn);
((OleDbDataAdapter)iAdapter).Fill(dataSet,startIndex,pageSize,tableName);
return dataSet;
}
catch(Exception ex)
{
throw new Exception(ex.Message);
}
finally
{
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
}
}
/**//// <summary>
/// 執行查詢語句，向XML文件寫入數據
/// </summary>
/// <param name="sqlString">查詢語句</param>
/// <param name="xmlPath">XML文件路徑</param>
public void WriteToXml(string sqlString,string xmlPath)
{
Query(sqlString).WriteXml(xmlPath);
}
/**//// <summary>
/// 執行查詢語句
/// </summary>
/// <param name="SqlString">查詢語句</param>
/// <returns>DataTable </returns>
public DataTable ExecuteQuery(string sqlString)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
//System.Data.IDbCommand iCmd = GetCommand(sqlString,iConn);
DataSet ds = new DataSet();
try
{
System.Data.IDataAdapter iAdapter = this.GetAdapater(sqlString,iConn);
iAdapter.Fill(ds);
}
catch(System.Exception e)
{
throw new Exception(e.Message);
}
finally
{
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
return ds.Tables[0];
}
}
/**//// <summary>
/// 執行查詢語句
/// </summary>
/// <param name="SqlString">查詢語句</param>
/// <returns>DataTable </returns>
public DataTable ExecuteQuery(string SqlString,string Proc)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
using(System.Data.IDbCommand iCmd = GetCommand(SqlString,iConn))
{
iCmd.CommandType = CommandType.StoredProcedure;
DataSet ds = new DataSet();
try
{
System.Data.IDataAdapter iDataAdapter = this.GetAdapater(SqlString,iConn);
iDataAdapter.Fill(ds);
}
catch(System.Exception e)
{
throw new Exception(e.Message);
}
finally
{
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
return ds.Tables[0];
}
}
}
/**//// <summary>
///
/// </summary>
/// <param name="Sql"></param>
/// <returns></returns>
public DataView ExeceuteDataView(string Sql)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
using(System.Data.IDbCommand iCmd = GetCommand(Sql,iConn))
{
DataSet ds = new DataSet();
try
{
System.Data.IDataAdapter iDataAdapter = this.GetAdapater(Sql,iConn);
iDataAdapter.Fill(ds);
return ds.Tables[0].DefaultView;
}
catch(System.Exception e)
{
throw new Exception(e.Message);
}
finally
{
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
}
}
}
#endregion
執行帶參數的SQL語句#region 執行帶參數的SQL語句
/**//// <summary>
/// 執行SQL語句，返回影響的記錄數
/// </summary>
/// <param name="SQLString">SQL語句</param>
/// <returns>影響的記錄數</returns>
public int ExecuteSql(string SQLString,params IDataParameter[] iParms)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
System.Data.IDbCommand iCmd = GetCommand();
{
try
{
PrepareCommand(out iCmd, iConn, null , SQLString, iParms );
int rows=iCmd.ExecuteNonQuery();
iCmd.Parameters.Clear();
return rows;
}
catch(System.Exception E)
{
throw new Exception( E.Message );
}
finally
{
iCmd.Dispose();
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
}
}
}
/**//// <summary>
/// 執行多條SQL語句，實現數據庫事務。
/// </summary>
/// <param name="SQLStringList">SQL語句的哈希表（key為sql語句，value是該語句的SqlParameter[]）</param>
public void ExecuteSqlTran(Hashtable SQLStringList)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
iConn.Open();
using (IDbTransaction iTrans = iConn.BeginTransaction())
{
System.Data.IDbCommand iCmd = GetCommand();
try
{
//循環
foreach ( DictionaryEntry myDE in SQLStringList)
{
string cmdText = myDE.Key.ToString();
IDataParameter[] iParms=( IDataParameter[] ) myDE.Value;
PrepareCommand( out iCmd , iConn , iTrans , cmdText , iParms );
int val = iCmd.ExecuteNonQuery();
iCmd.Parameters.Clear();
}
iTrans.Commit();
}
catch
{
iTrans.Rollback();
throw;
}
finally
{
iCmd.Dispose();
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
}
}
}
/**//// <summary>
/// 執行一條計算查詢結果語句，返回查詢結果（object）。
/// </summary>
/// <param name="SQLString">計算查詢結果語句</param>
/// <returns>查詢結果（object）</returns>
public object GetSingle(string SQLString,params IDataParameter[] iParms)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
System.Data.IDbCommand iCmd = GetCommand();
{
try
{
PrepareCommand( out iCmd, iConn, null , SQLString, iParms );
object obj = iCmd.ExecuteScalar();
iCmd.Parameters.Clear();
if((Object.Equals(obj,null))||(Object.Equals(obj,System.DBNull.Value)))
{
return null;
}
else
{
return obj;
}
}
catch(System.Exception e)
{
throw new Exception(e.Message);
}
finally
{
iCmd.Dispose();
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
}
}
}
/**//// <summary>
/// 執行查詢語句，返回IDataReader
/// </summary>
/// <param name="strSQL">查詢語句</param>
/// <returns> IDataReader </returns>
public IDataReader ExecuteReader(string SQLString,params IDataParameter[] iParms)
{
System.Data.IDbConnection iConn = this.GetConnection();
{
System.Data.IDbCommand iCmd = GetCommand();
{
try
{
PrepareCommand(out iCmd, iConn , null , SQLString , iParms);
System.Data.IDataReader iReader = iCmd.ExecuteReader();
iCmd.Parameters.Clear();
return iReader;
}
catch(System.Exception e)
{
throw new Exception(e.Message);
}
finally
{
iCmd.Dispose();
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
}
}
}
/**//// <summary>
/// 執行查詢語句，返回DataSet
/// </summary>
/// <param name="SQLString">查詢語句</param>
/// <returns>DataSet</returns>
public DataSet Query(string sqlString,params IDataParameter[] iParms)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
IDbCommand iCmd = GetCommand();
{
PrepareCommand(out iCmd , iConn , null , sqlString , iParms );
try
{
IDataAdapter iAdapter = this.GetAdapater(sqlString,iConn);
DataSet ds = new DataSet();
iAdapter.Fill(ds);
iCmd.Parameters.Clear();
return ds;
}
catch(System.Exception ex)
{
throw new Exception(ex.Message);
}
finally
{
iCmd.Dispose();
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
}
}
}
/**//// <summary>
/// 初始化Command
/// </summary>
/// <param name="iCmd"></param>
/// <param name="iConn"></param>
/// <param name="iTrans"></param>
/// <param name="cmdText"></param>
/// <param name="iParms"></param>
private void PrepareCommand(out IDbCommand iCmd,IDbConnection iConn,System.Data.IDbTransaction iTrans, string cmdText, IDataParameter[] iParms)
{
if (iConn.State != ConnectionState.Open)
iConn.Open();
iCmd = this.GetCommand();
iCmd.Connection = iConn;
iCmd.CommandText = cmdText;
if (iTrans != null)
iCmd.Transaction = iTrans;
iCmd.CommandType = CommandType.Text;//cmdType;
if (iParms != null)
{
foreach (IDataParameter parm in iParms)
iCmd.Parameters.Add(parm);
}
}
#endregion
存儲過程操作#region 存儲過程操作
/**//// <summary>
/// 執行存儲過程
/// </summary>
/// <param name="storedProcName">存儲過程名</param>
/// <param name="parameters">存儲過程參數</param>
/// <returns>SqlDataReader</returns>
public SqlDataReader RunProcedure(string storedProcName, IDataParameter[] parameters )
{
System.Data.IDbConnection iConn = this.GetConnection();
{
iConn.Open();
using(SqlCommand sqlCmd = BuildQueryCommand(iConn,storedProcName, parameters))
{
return sqlCmd.ExecuteReader(CommandBehavior.CloseConnection);
}
}
}
/**//// <summary>
/// 執行存儲過程
/// </summary>
/// <param name="storedProcName">存儲過程名</param>
/// <param name="parameters">存儲過程參數</param>
/// <param name="tableName">DataSet結果中的表名</param>
/// <returns>DataSet</returns>
public DataSet RunProcedure(string storedProcName, IDataParameter[] parameters ,string tableName)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
DataSet dataSet = new DataSet();
iConn.Open();
System.Data.IDataAdapter iDA = this.GetAdapater();
iDA = this.GetAdapater( BuildQueryCommand(iConn, storedProcName, parameters ) );
((SqlDataAdapter)iDA).Fill( dataSet,tableName);
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
return dataSet;
}
}
/**//// <summary>
/// 執行存儲過程
/// </summary>
/// <param name="storedProcName">存儲過程名</param>
/// <param name="parameters">存儲過程參數</param>
/// <param name="tableName">DataSet結果中的表名</param>
/// <param name="startIndex">開始記錄索引</param>
/// <param name="pageSize">頁面記錄大小</param>
/// <returns>DataSet</returns>
public DataSet RunProcedure(string storedProcName, IDataParameter[] parameters ,int startIndex,int pageSize,string tableName)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
DataSet dataSet = new DataSet();
iConn.Open();
System.Data.IDataAdapter iDA = this.GetAdapater();
iDA = this.GetAdapater( BuildQueryCommand(iConn, storedProcName, parameters ) );
((SqlDataAdapter)iDA).Fill( dataSet,startIndex,pageSize,tableName);
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
return dataSet;
}
}
/**//// <summary>
/// 執行存儲過程 填充已經存在的DataSet數據集
/// </summary>
/// <param name="storeProcName">存儲過程名稱</param>
/// <param name="parameters">存儲過程參數</param>
/// <param name="dataSet">要填充的數據集</param>
/// <param name="tablename">要填充的表名</param>
/// <returns></returns>
public DataSet RunProcedure(string storeProcName,IDataParameter[] parameters,DataSet dataSet,string tableName)
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
iConn.Open();
System.Data.IDataAdapter iDA = this.GetAdapater();
iDA = this.GetAdapater(BuildQueryCommand(iConn,storeProcName,parameters));
((SqlDataAdapter)iDA).Fill(dataSet,tableName);
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
return dataSet;
}
}
/**//// <summary>
/// 執行存儲過程並返回受影響的行數
/// </summary>
/// <param name="storedProcName"></param>
/// <param name="parameters"></param>
/// <returns></returns>
public int RunProcedureNoQuery(string storedProcName, IDataParameter[] parameters )
{
int result = 0;
using (System.Data.IDbConnection iConn = this.GetConnection())
{
iConn.Open();
using(SqlCommand scmd = BuildQueryCommand(iConn,storedProcName,parameters))
{
result = scmd.ExecuteNonQuery();
}
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
return result ;
}
public string RunProcedureExecuteScalar(string storeProcName,IDataParameter[] parameters)
{
string result = string.Empty;
using (System.Data.IDbConnection iConn = this.GetConnection())
{
iConn.Open();
using(SqlCommand scmd = BuildQueryCommand(iConn,storeProcName,parameters))
{
object obj = scmd.ExecuteScalar();
if(obj == null)
result = null;
else
result = obj.ToString();
}
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
}
return result;
}
/**//// <summary>
/// 構建 SqlCommand 對象(用來返回一個結果集，而不是一個整數值)
/// </summary>
/// <param name="connection">數據庫連接</param>
/// <param name="storedProcName">存儲過程名</param>
/// <param name="parameters">存儲過程參數</param>
/// <returns>SqlCommand</returns>
private SqlCommand BuildQueryCommand(IDbConnection iConn,string storedProcName, IDataParameter[] parameters)
{
IDbCommand iCmd = GetCommand(storedProcName,iConn);
iCmd.CommandType = CommandType.StoredProcedure;
if (parameters == null)
{
return (SqlCommand)iCmd;
}
foreach (IDataParameter parameter in parameters)
{
iCmd.Parameters.Add( parameter );
}
return (SqlCommand)iCmd;
}
/**//// <summary>
/// 執行存儲過程，返回影響的行數
/// </summary>
/// <param name="storedProcName">存儲過程名</param>
/// <param name="parameters">存儲過程參數</param>
/// <param name="rowsAffected">影響的行數</param>
/// <returns></returns>
public int RunProcedure(string storedProcName, IDataParameter[] parameters, out int rowsAffected )
{
using (System.Data.IDbConnection iConn = this.GetConnection())
{
int result;
iConn.Open();
using(SqlCommand sqlCmd = BuildIntCommand(iConn,storedProcName, parameters ))
{
rowsAffected = sqlCmd.ExecuteNonQuery();
result = (int)sqlCmd.Parameters["ReturnValue"].Value;
if(iConn.State != ConnectionState.Closed)
{
iConn.Close();
}
return result;
}
}
}
/**//// <summary>
/// 創建 SqlCommand 對象實例(用來返回一個整數值)
/// </summary>
/// <param name="storedProcName">存儲過程名</param>
/// <param name="parameters">存儲過程參數</param>
/// <returns>SqlCommand 對象實例</returns>
private SqlCommand BuildIntCommand(IDbConnection iConn,string storedProcName, IDataParameter[] parameters)
{
SqlCommand sqlCmd = BuildQueryCommand(iConn,storedProcName, parameters );
sqlCmd.Parameters.Add( new SqlParameter ( "ReturnValue",
SqlDbType.Int,4,ParameterDirection.ReturnValue,
false,0,0,string.Empty,DataRowVersion.Default,null ));
return sqlCmd;
}
#endregion
}
}
