Nicht implementierte Ausnahme wurde vom Benutzercode

Question

nicht behandelt. Jedes Mal, wenn ich versuche, den Fehler zu drucken, wird angezeigt. heißt es "Nicht implementierte Ausnahme wurde vom Benutzercode nicht behandelt". wie man dieses sh! T repariert? hier ist mein Code

namespace RunwayMedlinc 
{ 
public partial class patient : Form 
{ 
    Print print; 
    MySqlConnection con; 
    String sql; 
    MySqlCommand cmd; 
    MySqlDataAdapter data, data2, data3; 
    DataTable table = new DataTable(); 
    DataTable table2 = new DataTable(); 
    DataTable table3 = new DataTable(); 
    DataSet da = new DataSet(); 
    int age; 

    public patient() 
    { 
     InitializeComponent(); 
    } 

    public void view() 
    { 
    try 
     { 
      sql = "select p.mrn AS 'MRN', pp.name AS 'PATIENT NAME', pp.bday AS 'BIRTHDAY', p.age AS 'AGE', pp.gender AS 'GENDER', p.admit AS 'ADMIT DATE', p.discharge AS 'DISCHARGE DATE', p.md AS 'PHYSICIAN'FROM p inner join pp ON p.mrn=pp.mrn where admit like'%" + year.Text + "%' and admit like'%" + month.Text + "%'"; 
      cmd = new MySqlCommand(sql, con); 
      data.SelectCommand = cmd; 
      pview.DataSource = table; 
      table.Clear(); 
      data.Fill(table); 
      pview.DataSource = table; 
     } 
     catch (Exception exx) 
     { 
      MessageBox.Show(exx.Message, "Error"); 
     } 
    } 

    public void bew() 
    { 
     try 
     { 
      sql = "select p.mrn AS 'MRN', pp.name AS 'PATIENT NAME', pp.bday AS 'BIRTHDAY', p.age AS 'AGE', pp.gender AS 'GENDER', p.admit AS 'ADMIT DATE', p.discharge AS 'DISCHARGE DATE', p.md AS 'PHYSICIAN'FROM p inner join pp ON p.mrn=pp.mrn where admit like'%" + year2.Text + "%' and admit like'%" + month2.Text + "%'"; 
      cmd = new MySqlCommand(sql, con); 
      data2.SelectCommand = cmd; 
      pview2.DataSource = table2; 
      table2.Clear(); 
      data2.Fill(table2); 
     } 
     catch (Exception exx) 
     { 
      MessageBox.Show(exx.Message, "Error"); 
     } 
    } 

    private void search_Enter(object sender, EventArgs e) 
    { 
     if (search.ForeColor == Color.Gray) 
     { 
      search.Clear(); 
      search.ForeColor = Color.Black; 
     } 
    } 

    private void search_Leave(object sender, EventArgs e) 
    { 
     if (search.Text == "") 
     { 
      search.ForeColor = Color.Gray; 
      search.Text = "SEARCH PATIENT..."; 
     } 
    } 

    private void search2_Enter(object sender, EventArgs e) 
    { 
     if (search2.ForeColor == Color.Gray) 
     { 
      search2.Clear(); 
      search2.ForeColor = Color.Black; 
     } 
    } 

    private void search2_Leave(object sender, EventArgs e) 
    { 
     if (search2.Text == "") 
     { 
      search2.ForeColor = Color.Gray; 
      search2.Text = "SEARCH PATIENT..."; 
     } 
    } 

    private void timer1_Tick(object sender, EventArgs e) 
    { 
     time.Text = DateTime.Now.ToString("h:mm:ss tt"); 
     date.Text = DateTime.Now.ToString("MMMM d, yyyy"); 
    } 

    private void patient_Load(object sender, EventArgs e) 
    { 
     con = new MySqlConnection(); 
     con.ConnectionString = "server=Localhost;" + "username=root;" + "password=;" + "database=runway"; 
     con.Open(); 
     sql = "select mrn from p"; 
     cmd = new MySqlCommand(sql, con); 
     data = new MySqlDataAdapter(); 
     data2 = new MySqlDataAdapter(); 

     month.Text = Convert.ToString(DateTime.Now.ToString("MMMM")); 
     year.Text = Convert.ToString(DateTime.Now.ToString("yyyy")); 

     month2.Text = Convert.ToString(DateTime.Now.ToString("MMMM")); 
     year2.Text = Convert.ToString(DateTime.Now.ToString("yyyy")); 

     view(); 

     bew(); 
    } 

    private void clear_Click(object sender, EventArgs e) 
    { 
     mrn.Clear(); 
     name.Clear(); 
     phy.Clear(); 
     m.Checked = false; 
     f.Checked = false; 
     bdate.Value = DateTime.Now; 
     admit.Value = DateTime.Now; 
     disch.Value = DateTime.Now; 

     add.Enabled = true; 
     mrn.ReadOnly = false; 
     name.ReadOnly = false; 
     phy.ReadOnly = false; 
     m.Enabled = true; 
     f.Enabled = true; 
     bdate.Enabled = true; 
     admit.Enabled = true; 
    } 

    private void phy_Enter(object sender, EventArgs e) 
    { 
     if (phy.ReadOnly == false) 
     { 
      phy.Clear(); 
     } 
    } 

    private void add_Click(object sender, EventArgs e) 
    { 
     if (mrn.Text == "" || name.Text == "" || (m.Checked == false && f.Checked == false)) 
     { 
      MessageBox.Show("Please fill out all information.", "", MessageBoxButtons.OK, MessageBoxIcon.Information); 

     } 
     else 
     { 
       DateTime x = admit.Value; 
       DateTime y = bdate.Value; 
       if (x.Month < y.Month || (x.Month == y.Month && x.Day < y.Day)) 
       { 
        age = x.Year - y.Year - 1; 
       } 
       else 
       { 
        age = x.Year - y.Year; 
       } 

       if (m.Checked == true) 
       { 
        if (name.ReadOnly == false) 
        { 
         sql = "insert into pp(mrn, name, gender, bday)values (?a, ?b, ?c, ?d)"; 
         cmd = new MySqlCommand(sql, con); 

         cmd.Parameters.AddWithValue("?a", mrn.Text); 
         cmd.Parameters.AddWithValue("?b", name.Text); 
         cmd.Parameters.AddWithValue("?c", m.Text); 
         cmd.Parameters.AddWithValue("?d", bdate.Text); 
         cmd.ExecuteNonQuery(); 
        } 
       } 

       if (f.Checked == true) 
       { 
        if (name.ReadOnly == false) 
        { 
         sql = "insert into pp(mrn, name, gender, bday)values (?a, ?b, ?c, ?d)"; 
         cmd = new MySqlCommand(sql, con); 

         cmd.Parameters.AddWithValue("?a", mrn.Text); 
         cmd.Parameters.AddWithValue("?b", name.Text); 
         cmd.Parameters.AddWithValue("?c", f.Text); 
         cmd.Parameters.AddWithValue("?d", bdate.Text); 
         cmd.ExecuteNonQuery(); 
        } 
       } 

       sql = "insert into p(mrn, admit, discharge, md, age)values (?a, ?e, ?f, ?g, ?z)"; 
       cmd = new MySqlCommand(sql, con); 

       cmd.Parameters.AddWithValue("?a", mrn.Text); 
       cmd.Parameters.AddWithValue("?e", admit.Text); 
       cmd.Parameters.AddWithValue("?f", null); 
       cmd.Parameters.AddWithValue("?g", phy.Text); 
       cmd.Parameters.AddWithValue("?z", age); 
       cmd.ExecuteNonQuery(); 
       MessageBox.Show("Patient Successfully Added!", "Success!", MessageBoxButtons.OK, MessageBoxIcon.Information); 

       mrn.Clear(); 
       name.Clear(); 
       phy.Text = "MANGASEP, CONCEPCION R."; 
       m.Checked = false; 
       f.Checked = false; 
       bdate.Value = DateTime.Now; 
       admit.Value = DateTime.Now; 
       disch.Value = DateTime.Now; 

       month2.Text = Convert.ToString(DateTime.Now.ToString("MMMM")); 
       year2.Text = Convert.ToString(DateTime.Now.ToString("yyyy")); 
       bew(); 

     } 
    } 

    private void search_TextChanged(object sender, EventArgs e) 
    { 
     if (search.ForeColor != Color.Gray) 
     { 
      try 
      { 
       sql = "select p.mrn AS 'MRN', pp.name AS 'PATIENT NAME', pp.bday AS 'BIRTHDAY', p.age AS 'AGE', pp.gender AS 'GENDER', p.admit AS 'ADMIT DATE', p.discharge AS 'DISCHARGE DATE', p.md AS 'PHYSICIAN'FROM p inner join pp ON p.mrn=pp.mrn where admit like'%" + year.Text + "%' and admit like'%" + month.Text + "%' and name like'%" + search.Text + "%'"; 
       cmd = new MySqlCommand(sql, con); 
       data.SelectCommand = cmd; 
       pview.DataSource = table; 
       table.Clear(); 
       data.Fill(table); 
      } 
      catch (Exception exx) 
      { 
       MessageBox.Show(exx.Message, "Error"); 
      } 
     } 
    } 

    private void search2_TextChanged(object sender, EventArgs e) 
    { 
     if (search2.ForeColor != Color.Gray) 
     { 
      try 
      { 
       sql = "select p.mrn AS 'MRN', pp.name AS 'PATIENT NAME', pp.bday AS 'BIRTHDAY', p.age AS 'AGE', pp.gender AS 'GENDER', p.admit AS 'ADMIT DATE', p.discharge AS 'DISCHARGE DATE', p.md AS 'PHYSICIAN'FROM p inner join pp ON p.mrn=pp.mrn where admit like'%" + year2.Text + "%' and admit like'%" + month2.Text + "%' and name like'%" + search2.Text + "%'"; 
       cmd = new MySqlCommand(sql, con); 
       data2.SelectCommand = cmd; 
       pview2.DataSource = table2; 
       table2.Clear(); 
       data2.Fill(table2); 
      } 
      catch (Exception exx) 
      { 
       MessageBox.Show(exx.Message, "Error"); 
      } 
     } 
    } 

    private void pview2_Click(object sender, EventArgs e) 
    { 
     mrn.Text = pview2.SelectedRows[0].Cells[0].Value.ToString(); 
     name.Text = pview2.SelectedRows[0].Cells[1].Value.ToString(); 
     if (pview2.SelectedRows[0].Cells[4].Value.ToString() == "MALE") 
     { 
      m.Checked = true; 
     } 
     else 
     { 
      f.Checked = true; 
     } 
     bdate.Text = pview2.SelectedRows[0].Cells[2].Value.ToString(); 
     admit.Text = pview2.SelectedRows[0].Cells[5].Value.ToString(); 
     phy.Text = pview2.SelectedRows[0].Cells[7].Value.ToString(); 

     add.Enabled = false; 
     mrn.ReadOnly = true; 
     name.ReadOnly = true; 
     phy.ReadOnly = true; 
     m.Enabled = false; 
     f.Enabled = false; 
     bdate.Enabled = false; 
     admit.Enabled = false; 
    } 

    private void update_Click(object sender, EventArgs e) 
    { 
     sql = "Update p set discharge= '" + disch.Text + "' where mrn = '" + mrn.Text + "'"; 
     cmd = new MySqlCommand(sql, con); 
     cmd.ExecuteNonQuery(); 
     MessageBox.Show("Patient Successfuly Updated!"); 

     add.Enabled = true; 
     mrn.Clear(); 
     mrn.ReadOnly = false; 
     name.Clear(); 
     name.ReadOnly = false; 
     phy.Text = "MANGASEP, CONCEPCION R."; 
     phy.ReadOnly = false; 
     m.Checked = false; 
     f.Checked = false; 
     bdate.Value = DateTime.Now; 
     admit.Value = DateTime.Now; 
     disch.Value = DateTime.Now; 

     month2.Text = Convert.ToString(DateTime.Now.ToString("MMMM")); 
     year2.Text = Convert.ToString(DateTime.Now.ToString("yyyy")); 
     bew(); 
    } 

    private void mrn_TextChanged(object sender, EventArgs e) 
    { 
     sql = "Select name, gender, bday from pp where mrn = '" + mrn.Text + "'"; 
     cmd = new MySqlCommand(sql, con); 
     data3 = new MySqlDataAdapter(); 
     data3.SelectCommand = cmd; 
     table3 = new DataTable(); 
     data3.Fill(table3); 

     if (table3.Rows.Count > 0) 
     { 
      name.Text = Convert.ToString(table3.Rows[0][0]); 
      if (Convert.ToString(table3.Rows[0][1]) == "MALE") 
      { 
       m.Checked = true; ; 
      } 
      else 
      { 
       f.Checked = true; 
      } 
      bdate.Value = Convert.ToDateTime(table3.Rows[0][2]); 
      name.ReadOnly = true; 
      m.Enabled = false; 
      f.Enabled = false; 
      bdate.Enabled = false; 

     } 
     else 
     { 
      name.Clear(); 
      m.Checked = false; 
      f.Checked = false; 
      bdate.Value = DateTime.Now; 
      name.ReadOnly = false; 
      m.Enabled = true; 
      f.Enabled = true; 
      bdate.Enabled = true; 
     } 
    } 

    private void year_SelectedIndexChanged(object sender, EventArgs e) 
    { 
     view(); 
    } 

    private void month_SelectedIndexChanged(object sender, EventArgs e) 
    { 
     view(); 
    } 

    private void mrn_KeyPress(object sender, KeyPressEventArgs e) 
    { 

     if (!char.IsControl(e.KeyChar) && !char.IsDigit(e.KeyChar) && 
      (e.KeyChar != '.')) 
     { 
      e.Handled = true; 
     } 

     if ((e.KeyChar == '.') && ((sender as TextBox).Text.IndexOf('.') > -1)) 
     { 
      e.Handled = true; 
     } 
    } 

    private void TabControl1_SelectedIndexChanged(object sender, EventArgs e) 
    { 
     month.Text = Convert.ToString(DateTime.Now.ToString("MMMM")); 
     year.Text = Convert.ToString(DateTime.Now.ToString("yyyy")); 

     month2.Text = Convert.ToString(DateTime.Now.ToString("MMMM")); 
     year2.Text = Convert.ToString(DateTime.Now.ToString("yyyy")); 
     search.ForeColor = Color.Gray; 
     search.Text = "SEARCH PATIENT..."; 
     search2.ForeColor = Color.Gray; 
     search2.Text = "SEARCH PATIENT..."; 
     mrn.Clear(); 
     name.Clear(); 
     phy.Text = "MANGASEP, CONCEPCION R."; 
     m.Checked = false; 
     f.Checked = false; 
     bdate.Value = DateTime.Now; 
     admit.Value = DateTime.Now; 
     disch.Value = DateTime.Now; 
    } 

    private void month2_SelectedIndexChanged(object sender, EventArgs e) 
    { 
     bew(); 
    } 

    private void year2_SelectedIndexChanged(object sender, EventArgs e) 
    { 
     bew(); 
    } 

    private bool SetupThePrinting() 
    { 
     PrintDialog MyPrintDialog = new PrintDialog(); 
     MyPrintDialog.AllowCurrentPage = false; 
     MyPrintDialog.AllowPrintToFile = false; 
     MyPrintDialog.AllowSelection = false; 
     MyPrintDialog.AllowSomePages = false; 
     MyPrintDialog.PrintToFile = false; 
     MyPrintDialog.ShowHelp = false; 
     MyPrintDialog.ShowNetwork = false; 
     if (MyPrintDialog.ShowDialog() != DialogResult.OK) 
     return false; 
     dokumento.DocumentName = "List of Patients"; 
     dokumento.PrinterSettings = MyPrintDialog.PrinterSettings; 
     dokumento.DefaultPageSettings = MyPrintDialog.PrinterSettings.DefaultPageSettings; 
     dokumento.DefaultPageSettings.Landscape = false; 
     dokumento.DefaultPageSettings.Margins = new System.Drawing.Printing.Margins(10, 10, 10, 10); 
     dokumento.DefaultPageSettings.Landscape = MyPrintDialog.PrinterSettings.DefaultPageSettings.Landscape; 
     print = new Print(pview, dokumento, true, true, Environment.NewLine + "" + Environment.NewLine + "" + "Runway Medlinc" + Environment.NewLine + "" + Environment.NewLine + "List of Patients" 
     + Environment.NewLine + "" + Environment.NewLine + month.Text + " " + year.Text, new Font("Times New Roman", 12, FontStyle.Bold, GraphicsUnit.Point), Color.Black, true); 
     return true; 
    } 

    private void printer_Click(object sender, EventArgs e) 
     { 
      if (SetupThePrinting()) 
      { 
       PrintPreviewDialog MyPrintPreviewDialog = new PrintPreviewDialog(); 
       MyPrintPreviewDialog.Document = dokumento; 
       MyPrintPreviewDialog.ShowDialog(); 
       dokumento.Print(); 
      } 
     } 

    private void dokumento_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e) 
     { 
      bool more = print.DrawDataGridView(e.Graphics); 
      if (more == true) 
      e.HasMorePages = true; 
    } 

} 
} 

Jedesmal, wenn ich die Fehler drucken erscheint. heißt es "Nicht implementierte Ausnahme wurde vom Benutzercode nicht behandelt". wie man dieses sh! T repariert? und die andere Klasse ist hier

namespace RunwayMedlinc 
{ 
class Print 
{ 
    private System.Windows.Forms.DataGridView pview; 
    private System.Drawing.Printing.PrintDocument dokumento; 
    private bool p; 
    private bool p_2; 
    private string p_3; 
    private System.Drawing.Font font; 
    private System.Drawing.Color color; 
    private bool p_4; 

    public Print(System.Windows.Forms.DataGridView pview, System.Drawing.Printing.PrintDocument dokumento, bool p, bool p_2, string p_3, System.Drawing.Font font, System.Drawing.Color color, bool p_4) 
    { 
     this.pview = pview; 
     this.dokumento = dokumento; 
     this.p = p; 
     this.p_2 = p_2; 
     this.p_3 = p_3; 
     this.font = font; 
     this.color = color; 
     this.p_4 = p_4; 
    } 

    internal bool DrawDataGridView(System.Drawing.Graphics graphics) 
    { 
     throw new NotImplementedException(); 
    } 
} 
} 

Answer 1

Sie DrawDataGridView Methode in Print Klasse implementieren müssen.

Answer 2

internal bool DrawDataGridView(System.Drawing.Graphics graphics) 
{ 
    throw new NotImplementedException(); 
} 

Die throw Zeile verursacht das Problem. Sie müssen diese Zeile entfernen und dort eine Implementierung hinzufügen.

Answer 3

Die PrintDocument, an sich, hat keine Möglichkeit zu wissen, was Sie drucken möchten. Sie haben ihm die Formatierung gesagt, aber nicht den Inhalt.

Die Art und Weise zu sagen ist, das Dokument zu zeichnen, mit dem System.Drawing Namespace meist unter Verwendung der Graphics Eigenschaft des Ereignisses als Ausgabegerät. Das Ausgabegerät ist ein Druckertreiber, der Ihre Zeilen, Text usw. in den geeigneten Code zum Rendern auf Ihrem spezifischen Drucker, z.B. Postscript, PCL, was auch immer. Das ist dir egal. Sie müssen nur Text, Linien und Bilder in einem virtuellen zweidimensionalen Raum ausgeben.

So

1. diese Methoden Put zurück

2. DrawDataGridView Implement !!! Nur etwas tun einfach für jetzt, so dass Sie wissen, dass es funktioniert, wie

   internal bool DrawDataGridView(System.Drawing.Graphics graphics) 
   { 
       graphics.DrawString("Hello world!"); 
   } 
   

Sobald Sie haben, dass die Arbeit, nächstes werden Sie herausfinden müssen, wie der Inhalt des Dokuments richtig zu machen. Aber das könnte eine andere SO Frage sein.