public frmBroker()
{
InitializeComponent();
broker = new clsBroker();
instrumentMapping = new BrokerInstrumentMapping();
result = new clsBroker();
}
private void dataGridBrokers_CellClick(object sender, DataGridViewCellEventArgs e)
{
if (e.ColumnIndex < 0 || e.RowIndex < 0)
{
return; // header clicked
}
if (e.ColumnIndex == dataGridBrokers.Columns["buttonColumn"].Index)
{
// Your logic here. You can gain access to any cell value via DataGridViewCellEventArgs
int Id = Convert.ToInt32(dataGridBrokers["Id", e.RowIndex].Value);
instrumentMapping.DeleteBroker(Id);
var dataSource = instrumentMapping.GetBrokers();
dataGridBrokers.DataSource = dataSource;
MessageBox.Show(this, "Broker deleted successfully.", "Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
if (e.ColumnIndex == dataGridBrokers.Columns["buttonColumnEdit"].Index)
{
// Your logic here. You can gain access to any cell value via DataGridViewCellEventArgs
int Id = Convert.ToInt32(dataGridBrokers["Id", e.RowIndex].Value);
tabControl1.TabPages.Insert(2, updateTab);
tabControl1.SelectedTab = updateTab;
result = instrumentMapping.GetBroker(Id);
txtUpdateBroker.Text = result.BrokerCode;
txtUpdateDescription.Text = result.BrokerDescription;
}
}
public List <clsBroker> GetBrokers()
{
var listBroker = new List <clsBroker>();
// We use these three SQLite objects:
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 tblBroker";
// 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
{
var broker = new clsBroker();
broker.BrokerCode = Convert.ToString(sqlite_datareader["BrokerCode"]);
broker.BrokerDescription = Convert.ToString(sqlite_datareader["BrokerDescription"]);
broker.Id = Convert.ToInt32(sqlite_datareader["Id"]);
listBroker.Add(broker);
}
// We are ready, now lets cleanup and close our connection:
DisposeConnection(sqlite_conn, sqlite_cmd, sqlite_datareader);
return(listBroker);
}
public clsBroker DeleteMapping(int id)
{
var broker = new clsBroker();
// We use these three SQLite objects:
SQLiteConnection sqlite_conn;
SQLiteCommand sqlite_cmd;
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 = $"Delete from tblBrokerInstrumentMapping where Id={id}";
// Now the SQLiteCommand object can give us a DataReader-Object:
var result = sqlite_cmd.ExecuteScalar();
// We are ready, now lets cleanup and close our connection:
sqlite_conn.Close();
sqlite_conn.Dispose();
sqlite_cmd.Dispose();
return(broker);
}
public bool CheckDuplicateBroker(clsBroker model)
{
// We use these three SQLite objects:
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 Id FROM tblBroker where BrokerCode='{model.BrokerCode}' COLLATE NOCASE";
// 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
{
DisposeConnection(sqlite_conn, sqlite_cmd, sqlite_datareader);
return(false);
}
// We are ready, now lets cleanup and close our connection:
DisposeConnection(sqlite_conn, sqlite_cmd, sqlite_datareader);
return(true);
}
public void UpdateBroker(clsBroker model)
{
// 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 = $"Update tblBroker set BrokerCode='{model.BrokerCode}',BrokerDescription='{model.BrokerDescription}' where Id={model.Id};";
// 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();
}
