private void buttonAdd_Click(object sender, EventArgs e)
{
if (ValidateInput())
{
if (serverPtr2 == null)
{
MessageBox.Show("You didn't started server");
return;
}
HashTableValues htv = new HashTableValues();
htv.valid = true;
htv.ip = textBox2.Text;
htv.locationID = textBox3.Text;
// Its valid, update Hashtable, update sender IP, and clear texboxes
HashtableAndDatabaseClass.AddToHashTable(textBox1.Text, htv);
serverPtr2.updateSender(textBox2.Text);
// Update setting file
Properties.Settings.Default.FormManualMAC = textBox1.Text;
Properties.Settings.Default.FormManualIP = textBox2.Text;
Properties.Settings.Default.FormManualLocation = textBox3.Text;
Properties.Settings.Default.Save(); // Make it persistant
// Clear, in case u want to add new device
textBox2.Text = "";
textBox1.Text = "";
textBox3.Text = "";
}
}
public static void AddToHashTable(string key, HashTableValues value)
{
if (ht.ContainsKey(key))
{
return; // Already have that MAC address, ignore
}
ht.Add(key, value);
return;
}
public static void FetchValuesFromDatabase(string connectionString)
{
// Command to get MAC, IP and location ID
string command1 = "SELECT device.MAC,device.IP,location.id FROM device INNER JOIN location ON device.ID=location.DEVICE_ID ORDER BY location.id";
//string command2 = "SELECT * FROM device";
OracleConnection conn = new OracleConnection(connectionString);
conn.Open();
OracleCommand cmd = new OracleCommand(command1);
cmd.Connection = conn;
cmd.CommandType = System.Data.CommandType.Text;
OracleDataReader dr = cmd.ExecuteReader();
//StringBuilder sMAC = new StringBuilder();
//StringBuilder sIP = new StringBuilder();
//int bufferSize = 0;
HashTableValues htv = new HashTableValues();
htv.valid = true;
StringBuilder MACsb = new StringBuilder(); // Those are for testing purposes
StringBuilder IPsb = new StringBuilder();
StringBuilder locIDsb = new StringBuilder();
while (dr.Read()) // Read one row
{
MACsb.Append(dr.GetValue(0) + Environment.NewLine);
htv.ip = dr.GetValue(1).ToString();
IPsb.Append(htv.ip + Environment.NewLine);
htv.locationID = dr.GetValue(2).ToString();
locIDsb.Append(htv.locationID + Environment.NewLine);
// Add read values to hashtable, MAC is key, others are values
AddToHashTable(dr.GetValue(0).ToString(), htv);
}
conn.Close();
}