private async void SendALineFromTextFileEverySecond()
{
string filepath = String.Empty;
String fileExt = String.Empty;
OpenFileDialog openFileDialog = new OpenFileDialog();
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
filepath = openFileDialog.FileName;
fileExt = Path.GetExtension(filepath);
Console.WriteLine(filepath + " " + fileExt);
try
{
StreamReader reader = new StreamReader(filepath);
string line = "";
while ((line = reader.ReadLine()) != null && ComboBox1.GetItemText(ComboBox1.SelectedItem) == "Text File")
{
rxString = line + "\n";
this.Invoke(new EventHandler(UpdateWidgets));
await Task.Delay(1000);
}
DataStream.AppendText("EOF");
reader.Close();
}
catch (Exception ex) {
Console.WriteLine(ex);
}
}
}
private void connectToArduino() // Connect function
{
isConnected = true; // Переменную подключения ставим равной true.
string selectedPort = ComboBox1.GetItemText(ComboBox1.SelectedItem); // Ставим значние переменной selectedPort равной выбранному COM-порту.
SerialPort1.PortName = selectedPort; // Устанавливаем выбранный COM-порт.
SerialPort1.Open(); // Подключаемся к выбранному COM-порту.
Button4.Text = "Disconnect"; // Надпись на кнопке подключения ставим: Disconnect (Отключиться).
toolStripStatusLabel2.Text = "Connected"; // В статус баре пишем: Connected (Подключено).
toolStripStatusLabel5.Text = SerialPort1.PortName; // Пишем в статус бар номер подключенного порта.
}
private void comboBox1_SelectedIndexChanged(object sender, EventArgs _)
{
string dropdownText = ComboBox1.GetItemText(ComboBox1.SelectedItem);
if (dropdownText == "Text File")
{
SendALineFromTextFileEverySecond();
}
else
{
tryToConnectToCOM(dropdownText);
}
}
//BUTTON FOR SHOWING TABELS IN DATAGRIDVIEW
private void ShowTbl_Click(object sender, EventArgs e)
{
string selected = this.ComboBox1.GetItemText(this.ComboBox1.SelectedItem);
string DBselected = this.comboBox2.GetItemText(this.comboBox2.SelectedItem);
SqlConnection con = new SqlConnection(@"Data Source=SERVER_NAME;Initial Catalog =" + DBselected + "; User ID=USER;Password=PASS;");
sda = new SqlDataAdapter(@"SELECT * FROM dbo.[" + selected + "]", con);
dt = new DataTable();
sda.Fill(dt);
dataGridView1.DataSource = dt;
string ComboBoxSelected = ComboBox1.GetItemText(ComboBox1.SelectedItem);
con.Close();
}
private async void ComPortConnetionRenewer()
{
while (true)
{
await Task.Delay(1000);
if ((SerialPort1 == null || !SerialPort1.IsOpen) &&
ComboBox1.GetItemText(ComboBox1.SelectedItem) != "" &&
ComboBox1.GetItemText(ComboBox1.SelectedItem) != "Text File")
{
string dropdownText = ComboBox1.GetItemText(ComboBox1.SelectedItem);
DataStream.AppendText("Connecting to " + dropdownText + "\n");
tryToConnectToCOM(dropdownText);
}
}
}