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using System;
using System.Data;
using System.Data.SqlClient;
using Microsoft.Practices.EnterpriseLibrary.Data;
using System.Collections;
namespace SmartInstitute.DataAccessLayer.SqlClient
{
/// <summary>
/// Summary description for SqlHelperParameterCache.
/// </summary>
public class SqlHelperParameterCache
{
private static readonly Hashtable _ParamCache = new Hashtable();
public static IDataParameterCollection GetSpParameterSet( string connectionString, string storedProcName )
{
Database db = DatabaseFactory.CreateDatabase();
if( !_ParamCache.ContainsKey( storedProcName ) )
{
// Open the connection to the database
SqlConnection connection = db.GetConnection() as SqlConnection;
if( connection.State != ConnectionState.Open )
connection.Open();
SqlCommand cmd = new SqlCommand( storedProcName, connection );
cmd.CommandType = CommandType.StoredProcedure;
SqlCommandBuilder.DeriveParameters( cmd );
_ParamCache.Add( storedProcName, cmd.Parameters );
connection.Close();
}
return _ParamCache[ storedProcName ] as IDataParameterCollection;
}
}
}
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