/// <summary>
/// 函数直接从BLL中的实体类中获取数据并保存，成功返回工程ID值，失败返回-1
/// </summary>
/// <returns></returns>
public int AddInfo()
{
//拼凑Sql语句的方法无法存null串，只能存入空字符串
string sqlInsertInfo = "insert into tb_projinfo(pro_name,pro_type,con_province,con_city,unit,con_unit,sup_unit,con_area,con_height,des_unit)"
+ " values('" + ProjectInfo.Pro_Name + "','" + ProjectInfo.Pro_Type + "','" + ProjectInfo.Con_Province + "','" + ProjectInfo.Con_City + "','" + ProjectInfo.Unit + "','" + ProjectInfo.Sup_Unit + "','" + ProjectInfo.Sup_Unit + "','" + ProjectInfo.Con_Area + "','" + ProjectInfo.Con_Height + "','" + ProjectInfo.Des_Unit + "')";
int isIn = -1;
SQLiteConnection conn = null;
try
{
conn = _connBase.connectToDatabase();
//执行插入语句，同时Sqlite自动生成一个ID值
isIn = SQLiteHelper.ExecuteNonQuery(conn, sqlInsertInfo);
}
catch { }
//插入成功则找到ID值
if (isIn == 1)
{
//查询最大的工程ID
string sqlFindLastId = "select max(pro_id) from tb_projinfo";
SQLiteCommand cmd = SQLiteHelper.CreateCommand(conn, sqlFindLastId);
DataTable dt = SQLiteHelper.ExecuteDataset(cmd).Tables[0];
return(int.Parse(dt.Rows[dt.Rows.Count - 1][0].ToString()));
}
else
{
return(-1);//不成功返回负1
}
}