/*
Professional Windows GUI Programming Using C#
by Jay Glynn, Csaba Torok, Richard Conway, Wahid Choudhury,
Zach Greenvoss, Shripad Kulkarni, Neil Whitlow
Publisher: Peer Information
ISBN: 1861007663
*/
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace MyListBox
{
///
/// Summary description for MyListBox.
///
public class MyListBox : System.Windows.Forms.Form
{
///
/// Required designer variable.
///
private System.ComponentModel.Container components = null;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label label3;
private System.Windows.Forms.ListBox VARIABLE;
private System.Windows.Forms.ListBox FIXED;
private System.Windows.Forms.ListBox SIMPLE;
private System.Windows.Forms.ListBox MULTI_COLUMN;
private System.Windows.Forms.Label label4;
private System.Windows.Forms.ListBox MULTI_SELECTION;
private System.Windows.Forms.Label label5;
static int delta = 5 ;
string[] ListItems = new string[7];
public MyListBox()
{
ListItems[0] = “Apples”;
ListItems[1] = “Oranges”;
ListItems[2] = “Mangoes”;
ListItems[3] = “PineApple”;
ListItems[4] = “Strawbverries”;
ListItems[5] = “Bananas”;
ListItems[6] = “GrapeFruit”;
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
///
/// Clean up any resources being used.
///
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
///
/// Required method for Designer support – do not modify
/// the contents of this method with the code editor.
///
private void InitializeComponent()
{
this.label1 = new System.Windows.Forms.Label();
this.label2 = new System.Windows.Forms.Label();
this.label3 = new System.Windows.Forms.Label();
this.VARIABLE = new System.Windows.Forms.ListBox();
this.FIXED = new System.Windows.Forms.ListBox();
this.SIMPLE = new System.Windows.Forms.ListBox();
this.MULTI_COLUMN = new System.Windows.Forms.ListBox();
this.label4 = new System.Windows.Forms.Label();
this.MULTI_SELECTION = new System.Windows.Forms.ListBox();
this.label5 = new System.Windows.Forms.Label();
this.SuspendLayout();
//
// label1
//
this.label1.Font = new System.Drawing.Font(“Microsoft Sans Serif”, 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.label1.Location = new System.Drawing.Point(208, 24);
this.label1.Name = “label1”;
this.label1.Size = new System.Drawing.Size(192, 23);
this.label1.TabIndex = 1;
this.label1.Text = “Fixed Owner Draw List Box”;
//
// label2
//
this.label2.Font = new System.Drawing.Font(“Microsoft Sans Serif”, 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.label2.Location = new System.Drawing.Point(24, 24);
this.label2.Name = “label2”;
this.label2.Size = new System.Drawing.Size(168, 23);
this.label2.TabIndex = 2;
this.label2.Text = “Simple List Box”;
//
// label3
//
this.label3.Font = new System.Drawing.Font(“Microsoft Sans Serif”, 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.label3.Location = new System.Drawing.Point(424, 24);
this.label3.Name = “label3”;
this.label3.Size = new System.Drawing.Size(208, 16);
this.label3.TabIndex = 1;
this.label3.Text = “Variable Owner Draw List Box”;
//
// VARIABLE
//
this.VARIABLE.DrawMode = System.Windows.Forms.DrawMode.OwnerDrawVariable;
this.VARIABLE.Location = new System.Drawing.Point(424, 56);
this.VARIABLE.Name = “VARIABLE”;
this.VARIABLE.Size = new System.Drawing.Size(200, 240);
this.VARIABLE.TabIndex = 5;
this.VARIABLE.MeasureItem += new System.Windows.Forms.MeasureItemEventHandler(this.VARIABLE_MeasureItem);
this.VARIABLE.DrawItem += new System.Windows.Forms.DrawItemEventHandler(this.VARIABLE_DrawItem);
this.VARIABLE.SelectedIndexChanged += new System.EventHandler(this.VARIABLE_SelectedIndexChanged);
//
// FIXED
//
this.FIXED.DrawMode = System.Windows.Forms.DrawMode.OwnerDrawFixed;
this.FIXED.Location = new System.Drawing.Point(208, 56);
this.FIXED.Name = “FIXED”;
this.FIXED.Size = new System.Drawing.Size(208, 238);
this.FIXED.TabIndex = 4;
this.FIXED.DrawItem += new System.Windows.Forms.DrawItemEventHandler(this.FIXED_DrawItem);
this.FIXED.SelectedIndexChanged += new System.EventHandler(this.FIXED_SelectedIndexChanged);
//
// SIMPLE
//
this.SIMPLE.Location = new System.Drawing.Point(24, 56);
this.SIMPLE.Name = “SIMPLE”;
this.SIMPLE.Size = new System.Drawing.Size(176, 238);
this.SIMPLE.TabIndex = 3;
this.SIMPLE.SelectedIndexChanged += new System.EventHandler(this.SIMPLE_SelectedIndexChanged);
//
// MULTI_COLUMN
//
this.MULTI_COLUMN.Location = new System.Drawing.Point(24, 344);
this.MULTI_COLUMN.MultiColumn = true;
this.MULTI_COLUMN.Name = “MULTI_COLUMN”;
this.MULTI_COLUMN.Size = new System.Drawing.Size(224, 69);
this.MULTI_COLUMN.TabIndex = 6;
this.MULTI_COLUMN.SelectedIndexChanged += new System.EventHandler(this.MULTI_COLUMN_SelectedIndexChanged);
//
// label4
//
this.label4.Font = new System.Drawing.Font(“Microsoft Sans Serif”, 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.label4.Location = new System.Drawing.Point(24, 320);
this.label4.Name = “label4”;
this.label4.Size = new System.Drawing.Size(168, 24);
this.label4.TabIndex = 7;
this.label4.Text = “Multi Column ListBox”;
//
// MULTI_SELECTION
//
this.MULTI_SELECTION.Location = new System.Drawing.Point(296, 344);
this.MULTI_SELECTION.MultiColumn = true;
this.MULTI_SELECTION.Name = “MULTI_SELECTION”;
this.MULTI_SELECTION.SelectionMode = System.Windows.Forms.SelectionMode.MultiSimple;
this.MULTI_SELECTION.Size = new System.Drawing.Size(200, 147);
this.MULTI_SELECTION.TabIndex = 6;
this.MULTI_SELECTION.SelectedIndexChanged += new System.EventHandler(this.MULTI_SELECTION_SelectedIndexChanged);
//
// label5
//
this.label5.Font = new System.Drawing.Font(“Microsoft Sans Serif”, 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.label5.Location = new System.Drawing.Point(296, 320);
this.label5.Name = “label5”;
this.label5.Size = new System.Drawing.Size(208, 24);
this.label5.TabIndex = 7;
this.label5.Text = “Multi Selection ListBox”;
//
// MyListBox
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(640, 493);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.label4,
this.MULTI_COLUMN,
this.VARIABLE,
this.FIXED,
this.SIMPLE,
this.label2,
this.label1,
this.label3,
this.MULTI_SELECTION,
this.label5});
this.Name = “MyListBox”;
this.Text = “ListBox Style”;
this.Load += new System.EventHandler(this.MyListBox_Load);
this.ResumeLayout(false);
}
#endregion
///
/// The main entry point for the application.
///
[STAThread]
static void Main()
{
Application.Run(new MyListBox());
}
private void MyListBox_Load(object sender, System.EventArgs e)
{
// Set the height of the ListBox with OwnerDrawFixed property
FIXED.ItemHeight = 35 ;
// Populate all the ListBoxes
for ( int i=0; i < ListItems.Length; i++)
{
MULTI_SELECTION.Items.Add(ListItems[i]);
MULTI_COLUMN.Items.Add(ListItems[i]);
SIMPLE.Items.Add(ListItems[i]);
FIXED.Items.Add(ListItems[i]);
VARIABLE.Items.Add(ListItems[i]);
}
}
private void FIXED_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e)
{
//Select the Icon that you want to display
Icon i = new Icon("TICK.ico");
// Get the Bounding rectangle
Rectangle rc = new Rectangle(e.Bounds.X + delta , e.Bounds.Y + delta , e.Bounds.Width-10, e.Bounds.Height-delta);
Console.WriteLine(e.State.ToString());
// Setup the stringformatting object
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Center ;
// Get the item text
FIXED = (ListBox)sender ;
string str = (string)FIXED.Items[e.Index];
// Draw the rectangle
e.Graphics.DrawRectangle(new Pen(new SolidBrush(Color.Black) , 2) , rc);
e.Graphics.FillRectangle(new SolidBrush(Color.White) , rc);
// Check if the item is selected
if ( e.State == ( DrawItemState.NoAccelerator | DrawItemState.NoFocusRect))
{
// Paint the item that if not selected
e.Graphics.FillRectangle(new SolidBrush(Color.White) , rc);
e.Graphics.DrawString( str , new Font("Ariel" , 12) , new SolidBrush(Color.Black), rc ,sf);
e.DrawFocusRectangle();
}
else
{
// Paint the item accordingly if it is selected
e.DrawFocusRectangle();
e.Graphics.FillRectangle(new SolidBrush(Color.LightYellow) , rc);
e.Graphics.DrawIcon(i, e.Bounds.X , e.Bounds.Y+5);
e.Graphics.DrawString( str , new Font("Ariel" , 12) , new SolidBrush(Color.Black), rc ,sf);
}
}
private void VARIABLE_DrawItem(object sender, System.Windows.Forms.DrawItemEventArgs e)
{
//Select the Icon that you want to display
Icon i = new Icon("TICK.ico");
// Get the Bounding rectangle
Rectangle rc = new Rectangle(e.Bounds.X + delta , e.Bounds.Y + delta , e.Bounds.Width-10, e.Bounds.Height-delta);
Console.WriteLine(e.State.ToString());
// Setup the stringformatting object
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Center ;
// UnBox the sender
VARIABLE = (ListBox)sender ;
// Get the item text
string str = (string)VARIABLE.Items[e.Index];
// Draw the rectangle
e.Graphics.DrawRectangle(new Pen(new SolidBrush(Color.Black) , 2) , rc);
// Fill the rectangle with white background. Default Item not selected
e.Graphics.FillRectangle(new SolidBrush(Color.White) , rc);
// Check if the item is selected
if ( e.State == ( DrawItemState.NoAccelerator | DrawItemState.NoFocusRect))
{
// Paint the item that if not selected
e.Graphics.FillRectangle(new SolidBrush(Color.White) , rc);
e.Graphics.DrawString( str , new Font("Ariel" , 12) , new SolidBrush(Color.Black), rc ,sf);
e.DrawFocusRectangle();
}
else
{
// Paint the item accordingly if it is selected
e.DrawFocusRectangle();
e.Graphics.FillRectangle(new SolidBrush(Color.LightCyan) , rc);
e.Graphics.DrawIcon(i, e.Bounds.X , e.Bounds.Y+5);
e.Graphics.DrawString( str , new Font("Ariel" , 12) , new SolidBrush(Color.Black), rc ,sf);
}
}
private void VARIABLE_MeasureItem(object sender, System.Windows.Forms.MeasureItemEventArgs e)
{
// For every second item in the VariableListBox, set the itemheight to 55
if ( e.Index %2 == 0 )
{
e.ItemHeight = 55 ;
}
else
{
// For all other items set the items to 33
e.ItemHeight = 33 ;
}
}
private void SIMPLE_SelectedIndexChanged(object sender, System.EventArgs e)
{
// Unbox the sender
SIMPLE = (ListBox)sender ;
// Get the position of the item selected
int posSelected = SIMPLE.SelectedIndex ;
// Get the item text
string str = (string)SIMPLE.Items[posSelected];
MessageBox.Show("ITEM SELECTED FROM SIMPLE LIST BOX = " + str , "Simple ListBox");
}
private void FIXED_SelectedIndexChanged(object sender, System.EventArgs e)
{
// Unbox the sender
FIXED = (ListBox)sender ;
// Get the position of the item selected
int posSelected = FIXED.SelectedIndex ;
// Get the item text
string str = (string)FIXED.Items[posSelected];
MessageBox.Show("ITEM SELECTED FROM FIXED LIST BOX = " + str , "Fixed Height ListBox");
}
private void VARIABLE_SelectedIndexChanged(object sender, System.EventArgs e)
{
// Unbox the sender
VARIABLE = (ListBox)sender ;
// Get the position of the item selected
int posSelected = VARIABLE.SelectedIndex ;
// Get the item text
string str = (string) VARIABLE.Items[posSelected];
MessageBox.Show("ITEM SELECTED FROM VARIABLE LIST BOX = " + str , "Variable Height ListBox");
}
private void MULTI_COLUMN_SelectedIndexChanged(object sender, System.EventArgs e)
{
// Unbox the sender
MULTI_COLUMN = (ListBox)sender ;
// Get the position of the item selected
int posSelected = MULTI_COLUMN.SelectedIndex ;
// Get the item text
string str = (string) MULTI_COLUMN.Items[posSelected];
MessageBox.Show("ITEM SELECTED FROM MULTI_COLUM LIST BOX = " + str , "Multi Column");
}
private void MULTI_SELECTION_SelectedIndexChanged(object sender, System.EventArgs e)
{
// Unbox the sender
MULTI_SELECTION = (ListBox)sender ;
string str = "" ;
// Get the list of selected index's
for ( int i=0; i < MULTI_SELECTION.SelectedIndices.Count; i++)
{
// Get the index
int posSelected = MULTI_SELECTION.SelectedIndices[i];
// Get the item text at the index
str = str + (string)MULTI_SELECTION.Items[posSelected] + "," ;
}
MessageBox.Show("ITEM SELECTED FROM MULTI_SELECTION LIST BOX = " + str , "Multi Selection");
}
}
}
MyListBox.zip( 49 k)[/csharp]
