public static List <ChartZoomOut> ReteriveChartZoomList(string formName)
{
// We use these three SQLite objects:
List <ChartZoomOut> modelList = new List <ChartZoomOut>();
SQLiteConnection sqlite_conn;
SQLiteCommand sqlite_cmd;
SQLiteDataReader sqlite_datareader;
// create a new database connection:
sqlite_conn = new SQLiteConnection("Data Source=database.db;Version=3;New=True;Compress=True;");
// open the connection:
sqlite_conn.Open();
// create a new SQL command:
sqlite_cmd = sqlite_conn.CreateCommand();
// First lets build a SQL-Query again:
sqlite_cmd.CommandText = $"SELECT * FROM tblChartZoomPoints where formUniqueName='{formName}'";
// Now the SQLiteCommand object can give us a DataReader-Object:
sqlite_datareader = sqlite_cmd.ExecuteReader();
// The SQLiteDataReader allows us to run through the result lines:
while (sqlite_datareader.Read()) // Read() returns true if there is still a result line to read
{
// Print out the content of the text field:
//System.Console.WriteLine( sqlite_datareader["text"] );
ChartZoomOut model = new ChartZoomOut();
model.Index = Convert.ToInt32(sqlite_datareader["Id"]);
model.PosXFinish = Convert.ToDouble(sqlite_datareader["PosXFinish"]);
model.PosXStart = Convert.ToDouble(sqlite_datareader["PosXStart"]);
model.PosYFinish = Convert.ToDouble(sqlite_datareader["PosYFinish"]);
model.PosYStart = Convert.ToDouble(sqlite_datareader["PosYStart"]);
modelList.Add(model);
}
// We are ready, now lets cleanup and close our connection:
sqlite_conn.Close();
sqlite_conn.Dispose();
sqlite_cmd.Dispose();
return(modelList);
}
public static void SaveZoomList(ChartZoomOut model, string formName)
{
// We use these three SQLite objects:
SQLiteConnection sqlite_conn;
SQLiteCommand sqlite_cmd;
// create a new database connection:
sqlite_conn = new SQLiteConnection("Data Source=database.db;Version=3;New=True;Compress=True;");
// open the connection:
sqlite_conn.Open();
// create a new SQL command:
sqlite_cmd = sqlite_conn.CreateCommand();
// Lets insert something into our new table:
sqlite_cmd.CommandText = $"INSERT INTO tblChartZoomPoints (formUniqueName,[Index],PosXStart,PosXFinish,PosYStart,PosYFinish) VALUES ('{formName}',{model.Index},{model.PosXStart},{model.PosXFinish},{model.PosYStart},{model.PosYFinish});";
// And execute this again ;D
sqlite_cmd.ExecuteNonQuery();
// We are ready, now lets cleanup and close our connection:
sqlite_conn.Close();
sqlite_conn.Dispose();
sqlite_cmd.Dispose();
}