public int UpdateDataTableUsingTrans(DataTable table, OdbcCommand cmd)
{
if (tran == null)
{
if (conn.State != ConnectionState.Open)
{
conn.Open();
}
tran = Conn.BeginTransaction();
}
return(OdbcTool.UpdateDataTableUsingTrans(table, tran, cmd));
}
public int ExecuteSqlUsingTrans(string sqlstr, params object[] commandParameters)
{
if (tran == null)
{
if (conn.State != ConnectionState.Open)
{
conn.Open();
}
tran = Conn.BeginTransaction();
}
return(OdbcTool.ExecuteSqlUsingTrans(sqlstr, tran, commandParameters));
}
public static DataTable EntityListToDataTable <T>(IList <T> entitys, out OdbcCommand cmd)
{
string tableName = GetTableName <T>();
string sql = GetEntitySelectSql <T>() + " where 1=0 ";
DataTable dt = OdbcTool.ExecuteDataTable(sql, out cmd);
if (entitys.Count < 1)
{
return(dt);
}
PropertyInfo[] propertys = entitys[0].GetType().GetProperties();
foreach (T entity in entitys)
{
DataRow dr = dt.NewRow();
foreach (PropertyInfo pi in propertys)
{
string colName;
Type type;
GetColumnInfo(pi, out colName, out type);
if (colName == string.Empty)
{
colName = pi.Name;
}
if (dt.Columns.IndexOf(colName) == -1)
{
throw new Exception(string.Format("[{0}]不存在的列名称:{1}", tableName, colName));
}
object value = pi.GetValue(entity);
if (null != value)
{
dr[colName] = value;
}
else
{
dr[colName] = DBNull.Value;
}
}
dt.Rows.Add(dr);
}
return(dt);
}
