Csharp/C Sharp/GUI Windows Form/Dialog

A dialog by user defined property

 
using System;
using System.Collections.Generic;
using System.ruponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
class MainClass {
    public static void Main() {
        Phone frm = new Phone();
        while (true) {
            frm.ShowDialog();
            if (frm.DialogResult == DialogResult.OK) {
                Console.WriteLine(frm.PhoneNumber);
                if (frm.PhoneNumber.Length == 8 | frm.PhoneNumber.Length == 12) {
                    break;
                } else {
                    MessageBox.Show("Phone number was not formatted correctly. Please correct entry.");
                }
            } else if (frm.DialogResult == DialogResult.Cancel) {
                Console.WriteLine("Form was canceled.");
                break;
            }
        }
        frm.Close();
    }
}
class Phone : Form {
    private System.Windows.Forms.TextBox textBox1  = new System.Windows.Forms.TextBox();
    private System.Windows.Forms.Label label1 = new System.Windows.Forms.Label() ;
    private System.Windows.Forms.Button btnOK = new System.Windows.Forms.Button();
    private System.Windows.Forms.Button btnCancel = new System.Windows.Forms.Button();
    public Phone() {
        this.SuspendLayout();
        this.textBox1.Location = new System.Drawing.Point(122, 21);
        this.textBox1.Margin = new System.Windows.Forms.Padding(1, 3, 3, 3);
        this.textBox1.Size = new System.Drawing.Size(115, 20);
        this.label1.AutoSize = true;
        this.label1.Location = new System.Drawing.Point(10, 26);
        this.label1.Margin = new System.Windows.Forms.Padding(3, 3, 1, 3);
        this.label1.Size = new System.Drawing.Size(110, 14);
        this.label1.Text = "Enter phone number:";
        this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleRight;
        this.btnOK.DialogResult = System.Windows.Forms.DialogResult.OK;
        this.btnOK.Location = new System.Drawing.Point(36, 65);
        this.btnOK.Text = "OK";
        this.btnCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
        this.btnCancel.Location = new System.Drawing.Point(132, 65);
        this.btnCancel.Text = "Cancel";
        this.ClientSize = new System.Drawing.Size(270, 107);
        this.Controls.Add(this.btnCancel);
        this.Controls.Add(this.btnOK);
        this.Controls.Add(this.label1);
        this.Controls.Add(this.textBox1);
        this.ResumeLayout(false);
        this.PerformLayout();
        btnOK.DialogResult = DialogResult.OK;
        btnCancel.DialogResult = DialogResult.Cancel;
    }
    public string PhoneNumber {
        get { return textBox1.Text; }
        set { textBox1.Text = value; }
    }
}

Color Fill dialog

 
using System;
using System.Drawing;
using System.Windows.Forms;
   
class ColorFillDialogBox: Form
{
     GroupBox grpbox = new GroupBox();
     CheckBox chkbox = new CheckBox();
   
     public ColorFillDialogBox()
     {
          string[] astrColor = { "Black", "Blue", "Green", "Cyan",   
                                 "Red", "Magenta", "Yellow", "White"};
   
          grpbox.Parent   = this;
          grpbox.Text     = "Color";
          grpbox.Location = new Point(8, 8);
          grpbox.Size     = new Size(96, 12 * (astrColor.Length + 1));
   
          for (int i = 0; i < astrColor.Length; i++)
          {
               RadioButton radiobtn = new RadioButton();
               radiobtn.Parent      = grpbox;
               radiobtn.Text        = astrColor[i];
               radiobtn.Location    = new Point(8, 12 * (i + 1));
               radiobtn.Size        = new Size(80, 10);
          }
          chkbox.Parent   = this;
          chkbox.Text     = "Fill Ellipse";
          chkbox.Location = new Point(8, grpbox.Bottom + 4);
          chkbox.Size     = new Size(80, 10);
   
          Button btn   = new Button();
          btn.Parent   = this;
          btn.Text     = "OK";
          btn.Location = new Point(8, chkbox.Bottom + 4);
          btn.Size     = new Size(40, 16);
          btn.DialogResult = DialogResult.OK;
          AcceptButton = btn;
   
          btn  = new Button();
          btn.Parent   = this;
          btn.Text     = "Cancel";
          btn.Location = new Point(64, chkbox.Bottom + 4);
          btn.Size     = new Size(40, 16);
          btn.DialogResult = DialogResult.Cancel;
          CancelButton = btn;
   
          ClientSize = new Size(112, btn.Bottom + 8);
          AutoScaleBaseSize = new Size(4, 8);
     }
     public Color Color
     {
          get 
          { 
               for (int i = 0; i < grpbox.Controls.Count; i++)
               {
                    RadioButton radiobtn = (RadioButton) grpbox.Controls[i];
                    if (radiobtn.Checked)
                         return Color.FromName(radiobtn.Text);
               }
               return Color.Black;
               
          }  
          set 
          { 
               for (int i = 0; i < grpbox.Controls.Count; i++)
               {
                    RadioButton radiobtn = (RadioButton) grpbox.Controls[i];
   
                    if (value == Color.FromName(radiobtn.Text))
                    {
                         radiobtn.Checked = true;
                         break;
                    }
               }
          }
     }
     public bool Fill
     {
          get { return chkbox.Checked; }
          set { chkbox.Checked = value; }
     }
}
   
class DrawOrFillEllipse: Form
{
     Color colorEllipse = Color.Red;
     bool  bFillEllipse = false;
   
     public static void Main()
     {
          Application.Run(new DrawOrFillEllipse());
     }
     public DrawOrFillEllipse()
     {
          ResizeRedraw = true;
          Menu = new MainMenu();
          Menu.MenuItems.Add("&Options");
          Menu.MenuItems[0].MenuItems.Add("&Color...", new EventHandler(MenuColorOnClick));
     }
     void MenuColorOnClick(object obj, EventArgs ea)
     {
          ColorFillDialogBox dlg = new ColorFillDialogBox();
   
          dlg.Color = colorEllipse;
          dlg.Fill  = bFillEllipse;
   
          if (dlg.ShowDialog() == DialogResult.OK)
          {
               colorEllipse = dlg.Color;
               bFillEllipse = dlg.Fill;
               Invalidate();
          }
     }
     protected override void OnPaint(PaintEventArgs pea)
     {
          Graphics  grfx = pea.Graphics;
          Rectangle rect = new Rectangle(0, 0, 50, 50);
          if(bFillEllipse)
               grfx.FillEllipse(new SolidBrush(colorEllipse), rect);
          else
               grfx.DrawEllipse(new Pen(colorEllipse), rect);
     }
}

Color Scroll Dialog Box

 
using System;
using System.Drawing;
using System.Windows.Forms;
   
class ColorScrollDialogBox: Form
{
     Label[]      alabelName  = new Label[3];
     Label[]      alabelValue = new Label[3];
     VScrollBar[] avscroll    = new VScrollBar[3];
   
     public event EventHandler Changed;
   
     public ColorScrollDialogBox()
     {
          Color[] acolor = { Color.Red, Color.Green, Color.Blue };
   
          for (int i = 0; i < 3; i++)
          {
               alabelName[i] = new Label();
               alabelName[i].Parent = this;
               alabelName[i].ForeColor = acolor[i];
               alabelName[i].Text = "&" + acolor[i].ToKnownColor();
               alabelName[i].TextAlign = ContentAlignment.MiddleCenter;
   
               avscroll[i] = new VScrollBar();
               avscroll[i].Parent = this;
               avscroll[i].SmallChange = 1;
               avscroll[i].LargeChange = 16;
               avscroll[i].Minimum  = 0;
               avscroll[i].Maximum = 255 + avscroll[i].LargeChange - 1;
               avscroll[i].ValueChanged +=  new EventHandler(ScrollOnValueChanged);
               avscroll[i].TabStop = true;
   
               alabelValue[i] = new Label();
               alabelValue[i].Parent = this;
               alabelValue[i].TextAlign = ContentAlignment.MiddleCenter;
          }
   
          OnResize(EventArgs.Empty);
     }
     public Color Color
     {
          get 
          { 
               return Color.FromArgb(avscroll[0].Value,
                                     avscroll[1].Value,
                                     avscroll[2].Value); 
          }
          set 
          {
               avscroll[0].Value = value.R;
               avscroll[1].Value = value.G;
               avscroll[2].Value = value.B;
          }
     }
     protected override void OnResize(EventArgs ea)
     {
          base.OnResize(ea);
   
          int cx = ClientSize.Width;
          int cy = ClientSize.Height;
          int cyFont = Font.Height;
   
          for (int i = 0; i < 3; i++)
          {
               alabelName[i].Location = new Point(i * cx / 3, cyFont / 2);
               alabelName[i].Size = new Size(cx / 3, cyFont);
               avscroll[i].Location = new Point((4 * i + 1) * cx / 12,2 * cyFont);
               avscroll[i].Size = new Size(cx / 6, cy - 4 * cyFont);
               alabelValue[i].Location = new Point(i * cx / 3,cy - 3 * cyFont / 2);
               alabelValue[i].Size = new Size(cx / 3, cyFont);
          }
     }
     void ScrollOnValueChanged(Object obj, EventArgs ea)
     {
          for (int i = 0; i < 3; i++)
               if((VScrollBar) obj == avscroll[i])
                    alabelValue[i].Text = avscroll[i].Value.ToString();
          if (Changed != null)
               Changed(this, new EventArgs());
     }
}
   
class ModelessColorScroll: Form
{
     public static void Main()
     {
          Application.Run(new ModelessColorScroll());
     }
     public ModelessColorScroll()
     {
          ColorScrollDialogBox dlg = new ColorScrollDialogBox();
          
          dlg.Owner = this;
          dlg.Color = BackColor;
          dlg.Changed += new EventHandler(ColorScrollOnChanged);
          dlg.Show();
     }
     void ColorScrollOnChanged(object obj, EventArgs ea)
     {
          ColorScrollDialogBox dlg = (ColorScrollDialogBox) obj;
   
          BackColor = dlg.Color;
     }
}

Define your own dialog box and get user input

  using System;
  using System.Resources;
  using System.Drawing;
  using System.Collections;
  using System.Windows.Forms;
  using System.Resources;
  class Test
  {
    static void Main(string[] args)
    {
      SomeCustomForm myForm = new SomeCustomForm();
      myForm.Message = "Message";
      myForm.ShowDialog(new Form());
      if(myForm.DialogResult == DialogResult.OK)
      {
        Console.WriteLine(myForm.Message);
      }
    }
  }
    
    public class SomeCustomForm : System.Windows.Forms.Form
    {
        private System.ruponentModel.Container components;
    private System.Windows.Forms.Button btnCancel;
    private System.Windows.Forms.Button btnOK;
    private System.Windows.Forms.Label label1;
    private System.Windows.Forms.TextBox txtMessage;
        public SomeCustomForm()
        {
            InitializeComponent();
      this.StartPosition = FormStartPosition.CenterParent;      
        }
    private string strMessage;
    public string Message
    {
      get{ return strMessage;}
      set
      { 
        strMessage = value;
        txtMessage.Text = strMessage;
      }
    }

    protected override void Dispose( bool disposing )
    {
      if( disposing )
      {
        if (components != null) 
        {
          components.Dispose();
        }
      }
      base.Dispose( disposing );
    }

    #region Windows Form Designer generated code
        private void InitializeComponent()
    {
      this.ruponents = new System.ruponentModel.Container ();
      this.label1 = new System.Windows.Forms.Label ();
      this.btnOK = new System.Windows.Forms.Button ();
      this.btnCancel = new System.Windows.Forms.Button ();
      this.txtMessage = new System.Windows.Forms.TextBox ();
      label1.Location = new System.Drawing.Point (12, 8);
      label1.Text = "Type in your message.";
      label1.Size = new System.Drawing.Size (240, 48);
      label1.TabIndex = 1;
      btnOK.Location = new System.Drawing.Point (16, 104);
      btnOK.DialogResult = System.Windows.Forms.DialogResult.OK;
      btnOK.Size = new System.Drawing.Size (96, 24);
      btnOK.TabIndex = 2;
      btnOK.Text = "OK";
      btnOK.Click += new System.EventHandler (this.btnOK_Click);
      btnCancel.Location = new System.Drawing.Point (152, 104);
      btnCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
      btnCancel.Size = new System.Drawing.Size (96, 24);
      btnCancel.TabIndex = 3;
      btnCancel.Text = "Cancel";
      txtMessage.Location = new System.Drawing.Point (16, 72);
      txtMessage.TabIndex = 0;
      txtMessage.Size = new System.Drawing.Size (232, 20);
      this.Text = "Some Custom Dialog";
      this.MaximizeBox = false;
      this.AutoScaleBaseSize = new System.Drawing.Size (5, 13);
      this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
      this.ControlBox = false;
      this.MinimizeBox = false;
      this.ClientSize = new System.Drawing.Size (266, 151);
      this.Controls.Add (this.btnCancel);
      this.Controls.Add (this.btnOK);
      this.Controls.Add (this.label1);
      this.Controls.Add (this.txtMessage);
    }
    #endregion
    protected void btnOK_Click (object sender, System.EventArgs e)
    {
      // OK button clicked.
      // get new message.
      strMessage = txtMessage.Text;
    }
    }

Italic User Message Dialog: your own dialog

 
using System;
using System.Collections.Generic;
using System.ruponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
public class ItalicUserMessageDialog : UserMessageDialog {
    public ItalicUserMessageDialog() {
        InitializeComponent();
    }
    public bool Italic {
        set { checkBoxItalic.Checked = value; }
        get { return checkBoxItalic.Checked; }
    }
    private void InitializeComponent() {
        this.checkBoxItalic = new System.Windows.Forms.CheckBox();
        this.SuspendLayout();
        this.checkBoxItalic.AutoSize = true;
        this.checkBoxItalic.Location = new System.Drawing.Point(12, 79);
        this.checkBoxItalic.Size = new System.Drawing.Size(50, 17);
        this.checkBoxItalic.Text = "Italic?";
        this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.ClientSize = new System.Drawing.Size(352, 113);
        this.Controls.Add(this.checkBoxItalic);
        this.ResumeLayout(false);
        this.PerformLayout();
    }
    private System.Windows.Forms.CheckBox checkBoxItalic;
}
public class UserMessageDialog : Form {
    public UserMessageDialog() {
        InitializeComponent();
    }
    public string Message {
        set { txtUserInput.Text = value; }
        get { return txtUserInput.Text; }
    }
    private void InitializeComponent() {
        this.btnCancel = new System.Windows.Forms.Button();
        this.btnOK = new System.Windows.Forms.Button();
        this.label1 = new System.Windows.Forms.Label();
        this.txtUserInput = new System.Windows.Forms.TextBox();
        this.SuspendLayout();
        this.btnCancel.DialogResult = System.Windows.Forms.DialogResult.Cancel;
        this.btnCancel.Location = new System.Drawing.Point(263, 73);
        this.btnCancel.Size = new System.Drawing.Size(75, 23);
        this.btnCancel.Text = "Cancel";
        this.btnOK.DialogResult = System.Windows.Forms.DialogResult.OK;
        this.btnOK.Location = new System.Drawing.Point(182, 73);
        this.btnOK.Size = new System.Drawing.Size(75, 23);
        this.btnOK.Text = "OK";
        this.label1.AutoSize = true;
        this.label1.Location = new System.Drawing.Point(12, 9);
        this.label1.Size = new System.Drawing.Size(132, 13);
        this.label1.Text = "Please Enter your Message";
        this.txtUserInput.Location = new System.Drawing.Point(13, 35);
        this.txtUserInput.Size = new System.Drawing.Size(325, 20);
        this.AcceptButton = this.btnOK;
        this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.CancelButton = this.btnCancel;
        this.ClientSize = new System.Drawing.Size(350, 113);
        this.Controls.Add(this.txtUserInput);
        this.Controls.Add(this.label1);
        this.Controls.Add(this.btnOK);
        this.Controls.Add(this.btnCancel);
        this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.FixedDialog;
        this.MaximizeBox = false;
        this.MinimizeBox = false;
        this.ShowInTaskbar = false;
        this.StartPosition = System.Windows.Forms.FormStartPosition.CenterParent;
        this.ResumeLayout(false);
        this.PerformLayout();
    }
    private System.Windows.Forms.Button btnCancel;
    private System.Windows.Forms.Button btnOK;
    private System.Windows.Forms.Label label1;
    private System.Windows.Forms.TextBox txtUserInput;
}

public class MainWindow : Form {
    private string userMessage = "Default Message";
    private bool textIsItalic = false;
    public MainWindow() {
        InitializeComponent();
    }
    private void exitToolStripMenuItem_Click(object sender, EventArgs e) {
        Application.Exit();
    }
    private void configureToolStripMenuItem_Click(object sender, EventArgs e) {
        ItalicUserMessageDialog dlg = new ItalicUserMessageDialog();
        dlg.Message = userMessage;
        dlg.Italic = textIsItalic;
        if (DialogResult.OK == dlg.ShowDialog()) {
            userMessage = dlg.Message;
            textIsItalic = dlg.Italic;
            Invalidate();
        }
        dlg.Dispose();
    }
    private void MainWindow_Paint(object sender, PaintEventArgs e) {
        Graphics g = e.Graphics;
        Font f = null;
        if (textIsItalic)
            f = new Font("Times New Roman", 24, FontStyle.Italic);
        else
            f = new Font("Times New Roman", 24);
        g.DrawString(userMessage, f, Brushes.DarkBlue,50, 50);
    }
    private void InitializeComponent() {
        this.menuStrip1 = new System.Windows.Forms.MenuStrip();
        this.fileToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
        this.exitToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
        this.toolsToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
        this.configureToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
        this.menuStrip1.SuspendLayout();
        this.SuspendLayout();
        this.menuStrip1.Items.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.fileToolStripMenuItem,
            this.toolsToolStripMenuItem});
        this.menuStrip1.Location = new System.Drawing.Point(0, 0);
        this.menuStrip1.Size = new System.Drawing.Size(390, 24);
        this.menuStrip1.Text = "menuStrip1";
        this.fileToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.exitToolStripMenuItem});
        this.fileToolStripMenuItem.Text = "&File";
        this.exitToolStripMenuItem.Text = "E&xit";
        this.exitToolStripMenuItem.Click += new System.EventHandler(this.exitToolStripMenuItem_Click);
        this.toolsToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] {
            this.configureToolStripMenuItem});
        this.toolsToolStripMenuItem.Text = "&Tools";
        this.configureToolStripMenuItem.Text = "&Configure";
        this.configureToolStripMenuItem.Click += new System.EventHandler(this.configureToolStripMenuItem_Click);
        this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
        this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
        this.ClientSize = new System.Drawing.Size(390, 182);
        this.Controls.Add(this.menuStrip1);
        this.MainMenuStrip = this.menuStrip1;
        this.Paint += new System.Windows.Forms.PaintEventHandler(this.MainWindow_Paint);
        this.menuStrip1.ResumeLayout(false);
        this.ResumeLayout(false);
        this.PerformLayout();
    }
    private System.Windows.Forms.MenuStrip menuStrip1;
    private System.Windows.Forms.ToolStripMenuItem fileToolStripMenuItem;
    private System.Windows.Forms.ToolStripMenuItem exitToolStripMenuItem;
    private System.Windows.Forms.ToolStripMenuItem toolsToolStripMenuItem;
    private System.Windows.Forms.ToolStripMenuItem configureToolStripMenuItem;
    [STAThread]
    static void Main() {
        Application.EnableVisualStyles();
        Application.Run(new MainWindow());
    }
}

Use DialogResult property in Form

 

using System;
using System.Drawing;
using System.Windows.Forms;
   
class BetterDialog: Form
{
     public static void Main()
     {
          Application.Run(new BetterDialog());
     }
     public BetterDialog()
     {
          Menu = new MainMenu();
          Menu.MenuItems.Add("&Dialog!", new EventHandler(MenuOnClick));
     }
     void MenuOnClick(object obj, EventArgs ea)
     {
          BetterDialogBox dlg = new BetterDialogBox();
          DialogResult    dr  = dlg.ShowDialog();
   
          Console.WriteLine(dr);
     }
}
class BetterDialogBox: Form
{
     public BetterDialogBox()
     {
          Text = "Better Dialog Box";
   
          FormBorderStyle = FormBorderStyle.FixedDialog;
          ControlBox      = false;
          MaximizeBox     = false;
          MinimizeBox     = false;
          ShowInTaskbar   = false;
          StartPosition   = FormStartPosition.Manual;
          Location        = ActiveForm.Location + 
                            SystemInformation.CaptionButtonSize +
                            SystemInformation.FrameBorderSize;
   
          Button btn = new Button();
          btn.Parent   = this;
          btn.Text     = "OK";
          btn.Location = new Point(50, 50);
          btn.Size     = new Size (10 * Font.Height, 2 * Font.Height);
          btn.DialogResult = DialogResult.OK;
   
          AcceptButton = btn;
   
          btn = new Button();
          btn.Parent   = this;
          btn.Text     = "Cancel";
          btn.Location = new Point(50, 100);
          btn.Size     = new Size (10 * Font.Height, 2 * Font.Height);
          btn.DialogResult = DialogResult.Cancel;
   
          CancelButton = btn;
     }
}