public static PerformanceEntityCollection <T> PerformanceSelect <T>(string queryString, DataAccessParameterCollection parameters, CommandType cmdType)
where T : EntityBase, new()
{
PerformanceEntityCollection <T> result = null;
using (DataAccessBroker broker = DataAccessFactory.Instance())
{
IDataReader reader = broker.ExecuteReader(queryString, parameters, cmdType);
int fieldCount = reader.FieldCount;
List <string> columns = new List <string>();
object[] values = new object[fieldCount];
for (int i = 0; i < fieldCount; i++)
{
columns.Add(reader.GetName(i));
}
result = new PerformanceEntityCollection <T>(columns);
while (reader.Read())
{
reader.GetValues(values);
result.Add(values);
}
reader.Dispose();
}
return(result);
}
/// <summary>
/// 获取数据通过Command
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="command">SQL</param>
/// <returns></returns>
public static EntityCollection <T> Select <T>(string queryString, DataAccessParameterCollection parameters, CommandType cmdType)
where T : EntityBase, new()
{
EntityCollection <T> result = new EntityCollection <T>();
using (DataAccessBroker broker = DataAccessFactory.Instance())
{
IDataReader reader = broker.ExecuteReader(queryString, parameters, cmdType);
int fieldCount = reader.FieldCount;
List <string> columns = new List <string>();
object[] values = new object[fieldCount];
for (int i = 0; i < fieldCount; i++)
{
columns.Add(reader.GetName(i));
}
while (reader.Read())
{
T t = new T();
reader.GetValues(values);
for (int i = 0; i < fieldCount; i++)
{
if (!(values[i] == DBNull.Value))
{
t.SetData(columns[i], values[i]);
t.GetData(columns[i]);
}
}
result.Add(t);
}
}
return(result);
}
public static List <T> SelectSingleValue <T>(string queryString)
{
List <T> result = new List <T>();
using (DataAccessBroker broker = DataAccessFactory.Instance(InstanceName))
{
IDataReader reader = broker.ExecuteReader(queryString, new DataAccessParameterCollection(), CommandType.Text);
while (reader.Read())
{
T tmp = (T)reader.GetValue(0);
result.Add(tmp);
}
}
return(result);
}
public static EntityCollection <T> SelectByBroker <T>(string queryString, DataAccessParameterCollection parameters, CommandType cmdType, DataAccessBroker broker)
where T : EntityBase, new()
{
EntityCollection <T> result = new EntityCollection <T>();
IDataReader reader = broker.ExecuteReader(queryString, parameters, cmdType);
int fieldCount = reader.FieldCount;
List <string> columns = new List <string>();
Dictionary <string, Type> columnType = new Dictionary <string, Type>();
Dictionary <string, string> nameChange = new Dictionary <string, string>();
T col = new T();
object[] values = new object[fieldCount];
for (int i = 0; i < fieldCount; i++)
{
columns.Add(reader.GetName(i));
for (int m = 0; m < col.OringTableSchema.AllColumnInfo.Count; m++)
{
if (col.OringTableSchema.AllColumnInfo[m].ColumnName.ToUpper() == reader.GetName(i).ToUpper())
{
columnType.Add(reader.GetName(i), col.OringTableSchema.AllColumnInfo[m].DataType);
nameChange.Add(reader.GetName(i), col.OringTableSchema.AllColumnInfo[m].ColumnName);
}
}
}
while (reader.Read())
{
T t = new T();
reader.GetValues(values);
for (int i = 0; i < fieldCount; i++)
{
if (!(values[i] == DBNull.Value))
{
if (!columnType.ContainsKey(columns[i]))
{
continue;
}
if (values[i].GetType() == columnType[columns[i]])
{
t.SetData(nameChange[columns[i]], values[i]);
}
else
{
if (columnType[columns[i]] == Type.GetType("System.Int32"))
{
t.SetData(nameChange[columns[i]], int.Parse(values[i].ToString()));
}
else if (columnType[columns[i]] == Type.GetType("System.Boolean"))
{
if (values[i].ToString() == "0")
{
t.SetData(nameChange[columns[i]], false);
}
else
{
t.SetData(nameChange[columns[i]], true);
}
}
else
{
t.SetData(nameChange[columns[i]], values[i]);
}
}
}
}
result.Add(t);
}
reader.Dispose();
return(result);
}
