private void button1_Click(object sender, EventArgs e)
 {
     if (textBox1.Text != "" && comboBox1.Text != "")
     {
         textBox1.Text = textBox1.Text.Replace('.', ',');
         string date1 = dateTimePicker1.Value.Year.ToString() + '-' + dateTimePicker1.Value.Month.ToString() + '-' + dateTimePicker1.Value.Day.ToString();
         MySqlOperations.Insert_Update(MySqlQueries.Insert_Ubytiya, ID, date1, textBox1.Text, MySqlOperations.Select_ID_From_ComboBox(MySqlQueries.Select_ID_Organizacii, comboBox1.Text));
         this.Close();
     }
     else
     {
         MessageBox.Show("Поле 'Количество' не заполнено.", "Предупреждение", MessageBoxButtons.OK, MessageBoxIcon.Warning);
     }
 }