358 lines
8.5 KiB
C#
358 lines
8.5 KiB
C#
using System;
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using System.Collections;
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using System.Drawing;
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using System.Data;
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using System.Data.SqlClient;
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using Gtk;
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using GtkSharp;
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class Client {
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static Window window = null;
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static Dialog dialog = null;
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static Toolbar toolbar = null;
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static Table tableau = null;
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static Entry id_entry = null;
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static Entry name_entry = null;
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static Entry address_entry = null;
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static VBox box = null;
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static IdConnection conn = null;
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static void Main ()
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{
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Application.Init ();
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window = new Window ("Database client");
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window.DeleteEvent += new DeleteEventHandler (Window_Delete);
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window.DefaultSize = new Size (300, 200);
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box = new VBox (false, 0);
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window.Add (box);
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toolbar = new Toolbar ();
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PackToolbar ();
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box.PackStart (toolbar, false, false, 0);
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UpdateView ();
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window.ShowAll ();
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Application.Run ();
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}
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static void PackToolbar ()
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{
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toolbar.AppendItem ("Insert", "Insert a row", String.Empty,
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new Gtk.Image (Stock.Add, IconSize.LargeToolbar),
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new SignalFunc (Db_Insert), IntPtr.Zero);
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toolbar.AppendItem ("Remove", "Remove a row", String.Empty,
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new Gtk.Image (Stock.Remove, IconSize.LargeToolbar),
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new SignalFunc (Db_Remove), IntPtr.Zero);
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toolbar.AppendItem ("Edit", "Edit a row", String.Empty,
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new Gtk.Image (Stock.Italic, IconSize.LargeToolbar),
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new SignalFunc (Db_Edit), IntPtr.Zero);
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toolbar.AppendItem ("Refresh", "Refresh the view", String.Empty,
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new Gtk.Image (Stock.Refresh, IconSize.LargeToolbar),
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new SignalFunc (UpdateView), IntPtr.Zero);
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toolbar.AppendSpace ();
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toolbar.InsertStock (Stock.Quit, "Quit", String.Empty,
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new SignalFunc (Quit), IntPtr.Zero, -1);
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toolbar.ToolbarStyle = ToolbarStyle.BothHoriz;
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}
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static void Window_Delete (object o, DeleteEventArgs args)
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{
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Application.Quit ();
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args.RetVal = true;
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}
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static void UpdateView ()
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{
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if (tableau != null)
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tableau.Destroy ();
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ArrayList dataList = Conn.SelectAll ();
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tableau = new Gtk.Table ((uint) dataList.Count + 1, 3, true);
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DrawTitles (tableau);
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tableau.ColSpacings = 10;
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uint i = 1;
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foreach (Record r in dataList) {
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tableau.Attach (new Label (r.ID.ToString ()), 0, 1, i, i + 1);
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tableau.Attach (new Label (r.Name), 1, 2, i, i + 1);
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tableau.Attach (new Label (r.Address), 2, 3, i, i + 1);
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i++;
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}
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tableau.Show ();
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box.PackStart (tableau, false, false, 0);
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box.ShowAll ();
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}
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static void DrawTitles (Gtk.Table t)
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{
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Label label = null;
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label = new Label (String.Empty);
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label.Markup = "<big><b>ID</b></big>";
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label.UseMarkup = true;
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t.Attach (label, 0, 1, 0, 1, AttachOptions.Expand, AttachOptions.Expand, 1, 1);
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label = new Label (String.Empty);
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label.Markup = "<big><b>Name</b></big>";
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label.UseMarkup = true;
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t.Attach (label, 0, 2, 0, 1, AttachOptions.Expand, AttachOptions.Expand, 1, 1);
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label = new Label (String.Empty);
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label.Markup = "<big><b>Address</b></big>";
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label.UseMarkup = true;
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t.Attach (label, 0, 3, 0, 1, AttachOptions.Expand, AttachOptions.Expand, 1, 1);
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}
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static void Db_Insert ()
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{
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dialog = new Dialog ();
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dialog.Title = "Insert row";
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dialog.BorderWidth = 3;
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dialog.VBox.BorderWidth = 5;
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dialog.HasSeparator = false;
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Frame frame = new Frame ("Insert a row");
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frame.Add (DrawForm (Stock.DialogInfo));
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dialog.VBox.PackStart (frame, true, true, 0);
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Button button = null;
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button = Button.NewFromStock (Stock.Add);
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button.Clicked += new EventHandler (Insert_Action);
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button.CanDefault = true;
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dialog.ActionArea.PackStart (button, true, true, 0);
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button.GrabDefault ();
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button = Button.NewFromStock (Stock.Cancel);
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button.Clicked += new EventHandler (Dialog_Cancel);
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dialog.ActionArea.PackStart (button, true, true, 0);
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dialog.Modal = true;
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dialog.ShowAll ();
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}
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static void Db_Remove ()
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{
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dialog = new Dialog ();
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dialog.Title = "Remove row";
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dialog.BorderWidth = 3;
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dialog.VBox.BorderWidth = 5;
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dialog.HasSeparator = false;
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Frame frame = new Frame ("Remove a row");
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frame.Add (DrawForm (Stock.DialogWarning));
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dialog.VBox.PackStart (frame, true, true, 0);
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Button button = null;
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button = Button.NewFromStock (Stock.Remove);
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button.Clicked += new EventHandler (Remove_Action);
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button.CanDefault = true;
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dialog.ActionArea.PackStart (button, true, true, 0);
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button.GrabDefault ();
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button = Button.NewFromStock (Stock.Cancel);
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button.Clicked += new EventHandler (Dialog_Cancel);
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dialog.ActionArea.PackStart (button, true, true, 0);
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dialog.ShowAll ();
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}
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static Widget DrawForm (string image)
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{
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HBox hbox = new HBox (false, 2);
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hbox.BorderWidth = 5;
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hbox.PackStart (new Gtk.Image (image, IconSize.Dialog), true, true, 0);
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Table table = new Table (3, 3, false);
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hbox.PackStart (table);
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table.ColSpacings = 4;
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table.RowSpacings = 4;
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Label label = null;
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label = Label.NewWithMnemonic ("_ID");
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table.Attach (label, 0, 1, 0, 1);
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id_entry = new Entry ();
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table.Attach (id_entry, 1, 2, 0, 1);
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label = Label.NewWithMnemonic ("_Name");
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table.Attach (label, 0, 1, 1, 2);
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name_entry = new Entry ();
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table.Attach (name_entry, 1, 2, 1, 2);
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label = Label.NewWithMnemonic ("_Address");
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table.Attach (label, 0, 1, 2, 3);
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address_entry = new Entry ();
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table.Attach (address_entry, 1, 2, 2, 3);
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return hbox ;
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}
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static void Db_Edit ()
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{
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}
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static void Quit ()
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{
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Application.Quit ();
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}
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static void Insert_Action (object o, EventArgs args)
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{
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Conn.Insert (UInt32.Parse (id_entry.Text), name_entry.Text, address_entry.Text);
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UpdateView ();
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dialog.Destroy ();
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}
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static void Remove_Action (object o, EventArgs args)
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{
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Conn.Delete (UInt32.Parse (id_entry.Text));
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UpdateView ();
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dialog.Destroy ();
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}
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static void Dialog_Cancel (object o, EventArgs args)
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{
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dialog.Destroy ();
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dialog = null;
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}
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static IdConnection Conn
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{
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get {
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if (conn == null)
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conn = new IdConnection ();
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return conn;
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}
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}
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}
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struct Record {
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public uint ID;
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public string Name;
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public string Address;
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public Record (uint i, string s, string t)
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{
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ID = i;
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Name = s;
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Address = t;
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}
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}
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class IdConnection : IDisposable
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{
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private SqlConnection cnc;
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private bool disposed;
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public IdConnection ()
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{
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cnc = new SqlConnection ();
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string connectionString = "hostaddr=127.0.0.1;" +
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"user=monotest;" +
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"password=monotest;" +
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"dbname=monotest";
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cnc.ConnectionString = connectionString;
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try {
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cnc.Open ();
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} catch (Exception){
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cnc = null;
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throw;
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}
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}
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public void Insert (uint id, string name, string address)
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{
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string insertCmd = String.Format ("INSERT INTO customers VALUES ({0}, '{1}', '{2}')",
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id, name.Trim (), address.Trim ());
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IDbCommand insertCommand = cnc.CreateCommand();
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insertCommand.CommandText = insertCmd;
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insertCommand.ExecuteNonQuery ();
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}
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public void Delete (uint id)
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{
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string deleteCmd = String.Format ("DELETE FROM customers WHERE id = {0}", id);
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IDbCommand deleteCommand = cnc.CreateCommand();
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deleteCommand.CommandText = deleteCmd;
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deleteCommand.ExecuteNonQuery ();
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}
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public bool Update (uint id, string name, string address)
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{
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string updateCmd = String.Format ("UPDATE customers SET name = '{1}', address = '{2}' WHERE id = {0}",
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id, name.Trim (), address.Trim ());
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IDbCommand updateCommand = cnc.CreateCommand();
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updateCommand.CommandText = updateCmd;
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bool updated = false;
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return (updateCommand.ExecuteNonQuery () != 0);
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}
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public ArrayList SelectAll ()
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{
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IDbCommand selectCommand = cnc.CreateCommand();
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string selectCmd = "SELECT id, name, address FROM customers ORDER by id";
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selectCommand.CommandText = selectCmd;
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IDataReader reader = selectCommand.ExecuteReader ();
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return FillDataList (reader);
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}
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public Record Select (uint id)
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{
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IDbCommand selectCommand = cnc.CreateCommand();
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string selectCmd = "SELECT id, name, address FROM customers WHERE id = " + id;
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selectCommand.CommandText = selectCmd;
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IDataReader reader = selectCommand.ExecuteReader ();
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ArrayList list = FillDataList (reader);
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return (Record) list [0];
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}
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private ArrayList FillDataList (IDataReader reader)
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{
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ArrayList list = new ArrayList ();
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while (reader.Read ()) {
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Record data = new Record (UInt32.Parse (reader.GetValue (0).ToString ()),
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(string) reader.GetValue (1),
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(string) reader.GetValue (2));
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list.Add (data);
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}
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return list;
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}
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protected virtual void Dispose (bool exp)
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{
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if (!disposed && cnc != null) {
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disposed = true;
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try {
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cnc.Close ();
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} catch (Exception) {
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}
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cnc = null;
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}
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}
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public void Dispose ()
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{
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Dispose (true);
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GC.SuppressFinalize (this);
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}
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~IdConnection ()
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{
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Dispose (false);
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}
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}
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