public DataTable ExecuteDataTable(CommandType commandType, string
commandText)
{
try
{
this.idbCommand = DBManagerFactory.GetCommand(this.ProviderType);
PrepareCommand(idbCommand, this.Connection, this.Transaction,
commandType,
commandText, this.Parameters);
IDbDataAdapter dataAdapter = DBManagerFactory.GetDataAdapter
(this.ProviderType);
dataAdapter.SelectCommand = idbCommand;
DataSet dataSet = new DataSet();
dataAdapter.Fill(dataSet);
idbCommand.Parameters.Clear();
if (dataSet.Tables.Count > 0)
{
return(dataSet.Tables[0]);
}
return(null);
}
catch (Exception)
{
throw;
}
}
public object ExecuteScalar(CommandType commandType, string commandText)
{
this.idbCommand = DBManagerFactory.GetCommand(this.ProviderType);
PrepareCommand(idbCommand, this.Connection, this.Transaction, commandType, commandText, this.Parameters);
object returnValue = idbCommand.ExecuteScalar();
idbCommand.Parameters.Clear();
return(returnValue);
}
public void BeginTransaction()
{
if (this.idbTransaction == null)
{
idbTransaction = DBManagerFactory.GetTransaction(this.ProviderType, idbConnection);
}
this.idbCommand.Transaction = idbTransaction;
}
private IDbDataAdapter CreateCommandAndDataAdapter()
{
//Command and Adapter creation
this.idbCommand = DBManagerFactory.GetCommand(this.ProviderType);
IDbDataAdapter dataAdapter = DBManagerFactory.GetDataAdapter
(this.ProviderType);
return(dataAdapter);
}
public IDataReader ExecuteReader(CommandType commandType, string commandText)
{
this.idbCommand = DBManagerFactory.GetCommand(this.ProviderType);
idbCommand.Connection = this.Connection;
PrepareCommand(idbCommand, this.Connection, this.Transaction, commandType, commandText, this.Parameters);
this.DataReader = idbCommand.ExecuteReader();
idbCommand.Parameters.Clear();
return(this.DataReader);
}
public void AddParameters(string paramName, object objValue)
{
IDbDataParameter param = DBManagerFactory.GetParameter(this.providerType);
param.ParameterName = paramName;
param.Value = objValue;
param.Direction = ParameterDirection.Input;
idbParameters.Add(param);
}
public void Open()
{
idbConnection =
DBManagerFactory.GetConnection(this.providerType);
idbConnection.ConnectionString = this.ConnectionString;
if (idbConnection.State != ConnectionState.Open)
{
idbConnection.Open();
}
this.idbCommand = DBManagerFactory.GetCommand(this.ProviderType);
}
public void AddParameters(string paramName, ParameterDirection direction, DbType type, object objValue = null)
{
IDbDataParameter param = DBManagerFactory.GetParameter(this.providerType);
param.ParameterName = paramName;
param.Value = objValue;
param.Direction = direction;
param.DbType = type;
idbParameters.Add(param);
}
public DataSet ExecuteDataSet(CommandType commandType, string commandText)
{
this.idbCommand = DBManagerFactory.GetCommand(this.ProviderType);
PrepareCommand(idbCommand, this.Connection, this.Transaction, commandType, commandText, this.Parameters);
IDbDataAdapter dataAdapter = DBManagerFactory.GetDataAdapter(this.ProviderType);
dataAdapter.SelectCommand = idbCommand;
DataSet dataSet = new DataSet();
dataAdapter.Fill(dataSet);
idbCommand.Parameters.Clear();
return(dataSet);
}
public IDataReader ExecuteReader(CommandType commandType, string commandText)
{
if (this.Connection == null)
{
Open();
}
this.idbCommand = DBManagerFactory.GetCommand(this.ProviderType);
idbCommand.Connection = this.Connection;
PrepareCommand(idbCommand, this.Connection, this.Transaction, commandType, commandText, this.Parameters);
this.DataReader = idbCommand.ExecuteReader();
// TODO: only clear out parameters if none of the parameters are of type output
//idbCommand.Parameters.Clear();
return(this.DataReader);
}
public object ExecuteScalar(CommandType commandType, string commandText)
{
if (this.Connection == null)
{
Open();
}
this.idbCommand = DBManagerFactory.GetCommand(this.ProviderType);
PrepareCommand(idbCommand, this.Connection, this.Transaction, commandType, commandText, this.Parameters);
object returnValue = idbCommand.ExecuteScalar();
// TODO: only clear out parameters if none of the parameters are of type output
// idbCommand.Parameters.Clear();
return(returnValue);
}
public int ExecuteNonQuery(CommandType commandType, string
commandText)
{
try
{
this.idbCommand = DBManagerFactory.GetCommand(this.ProviderType);
PrepareCommand(idbCommand, this.Connection, this.Transaction,
commandType, commandText, this.Parameters);
int returnValue = idbCommand.ExecuteNonQuery();
idbCommand.Parameters.Clear();
return(returnValue);
}
catch (Exception)
{
throw;
}
}
public DataSet ExecuteDataSet(CommandType commandType, string commandText)
{
if (this.Connection == null)
{
Open();
}
this.idbCommand = DBManagerFactory.GetCommand(this.ProviderType);
this.idbCommand.CommandTimeout = 0;
PrepareCommand(idbCommand, this.Connection, this.Transaction, commandType, commandText, this.Parameters);
IDbDataAdapter dataAdapter = DBManagerFactory.GetDataAdapter(this.ProviderType);
dataAdapter.SelectCommand = idbCommand;
DataSet dataSet = new DataSet();
dataAdapter.Fill(dataSet);
// TODO: only clear out parameters if none of the parameters are of type output
// idbCommand.Parameters.Clear();
return(dataSet);
}
public DataSet SetDataSetForUpdate(CommandType commandType, string
commandText)
{
try
{
this.idbCommand = DBManagerFactory.GetCommand(this.ProviderType);
PrepareCommand(idbCommand, this.Connection, this.Transaction,
commandType,
commandText, this.Parameters);
IDbDataAdapter dataAdapter = DBManagerFactory.GetDataAdapter
(this.ProviderType);
dataAdapter.SelectCommand = idbCommand;
UpdateDataSet = new DataSet();
dataAdapter.Fill(UpdateDataSet);
idbCommand.Parameters.Clear();
return(UpdateDataSet);
}
catch (Exception)
{
throw;
}
}
public void CreateParameters(int paramsCount)
{
idbParameters = new IDbDataParameter[paramsCount];
idbParameters = DBManagerFactory.GetParameters(this.ProviderType, paramsCount);
}
private void GetTheCommandBuilder(IDbDataAdapter dataAdapter)
{
this.iDbCommandBuilder = DBManagerFactory.GetCommandBuilder(this.providerType, dataAdapter);
}
