в 15:31, 26 мая 2010

2010-05-26T15:31:18Z

Admin: 1 версия

2010-05-26T11:38:10Z

1 версия

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==Auto Complete ComboBox==

<source lang="csharp">
using System;
using System.Drawing;
using System.Collections;
using System.ruponentModel;
using System.Windows.Forms;
using System.Data;
public class Form1 : System.Windows.Forms.Form
{
private AutoCompleteComboBox combo;
public Form1()
{
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(292, 273);
combo = new AutoCompleteComboBox();
combo.Location = new System.Drawing.Point(64, 32);
combo.Size = new System.Drawing.Size(150, 20);
combo.Items.Add("Aaaaaa");
combo.Items.Add("Bbbbbbbbb");
combo.Items.Add("Ccccccccccc");

Controls.Add(combo);
CenterToScreen();
}
static void Main()
{
Application.Run(new Form1());
}
}

public class AutoCompleteComboBox : System.Windows.Forms.ruboBox
{
public event System.ruponentModel.CancelEventHandler NotInList;
private bool strict = true;
private bool isEditing = false;
public AutoCompleteComboBox() : base() {
}
public bool Strict
{
get { return strict; }
set { strict = value; }
}
protected virtual void OnNotInList(System.ruponentModel.CancelEventArgs e)
{
if (NotInList != null)
{
NotInList(this, e);
}
}
protected override void OnTextChanged(System.EventArgs e)
{
if (isEditing)
{
string input = Text;
int index = this.FindString(input);
if (index >= 0)
{
isEditing = false;
SelectedIndex = index;
isEditing = true;
Select(input.Length, Text.Length);
}
}
base.OnTextChanged(e);
}
protected override void OnValidating(System.ruponentModel.CancelEventArgs e)
{
if (this.Strict)
{
int pos = this.FindStringExact(this.Text);

if (pos == -1)
{
OnNotInList(e);
}
else
{
this.SelectedIndex = pos;
}
}
base.OnValidating(e);
}
protected override void OnKeyDown(System.Windows.Forms.KeyEventArgs e)
{
isEditing = (e.KeyCode != Keys.Back && e.KeyCode != Keys.Delete);
base.OnKeyDown(e);
}
}

</source>

==Buildin AutoCompleteMode for ComboBox==

<source lang="csharp">
using System;
using System.Collections.Generic;
using System.ruponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
public class Form1 : Form
{
private System.Windows.Forms.ruboBox lstColors;
public Form1() {
InitializeComponent();
string[] colorNames;
colorNames = System.Enum.GetNames(typeof(KnownColor));
lstColors.Items.AddRange(colorNames);
}
private void InitializeComponent()
{
this.lstColors = new System.Windows.Forms.ruboBox();
this.SuspendLayout();
this.lstColors.AutoCompleteMode = ((System.Windows.Forms.AutoCompleteMode)((System.Windows.Forms.AutoCompleteMode.Suggest | System.Windows.Forms.AutoCompleteMode.Append)));
this.lstColors.AutoCompleteSource = System.Windows.Forms.AutoCompleteSource.ListItems;
this.lstColors.FormattingEnabled = true;
this.lstColors.Location = new System.Drawing.Point(13, 13);
this.lstColors.Name = "lstColors";
this.lstColors.Size = new System.Drawing.Size(267, 21);
this.lstColors.TabIndex = 0;
this.AutoScaleBaseSize = new System.Drawing.Size(5, 14);
this.ClientSize = new System.Drawing.Size(296, 82);
this.Controls.Add(this.lstColors);
this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
this.Name = "Form1";
this.Text = "AutoComplete";
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.Run(new Form1());
}
}

</source>

==Use an Autocomplete Combo Box==

<source lang="csharp">
using System;
using System.Windows.Forms;
using System.Drawing;
public class AutoCompleteComboBoxTest : System.Windows.Forms.Form {
public AutoCompleteComboBoxTest(){
AutoCompleteComboBox combo = new AutoCompleteComboBox();
combo.Location = new Point(10,10);
this.Controls.Add(combo);
combo.Items.Add("Aaaaaa");
combo.Items.Add("Bbbbbbbbb");
combo.Items.Add("Ccccccccccc");
}
public static void Main(){
Application.Run(new AutoCompleteComboBoxTest());
}
}

public class AutoCompleteComboBox : ComboBox {
private bool controlKey = false;
protected override void OnKeyPress( System.Windows.Forms.KeyPressEventArgs e) {
base.OnKeyPress(e);
if (e.KeyChar == (int)Keys.Escape) {
this.SelectedIndex = -1;
this.Text = "";
controlKey = true;
} else if (Char.IsControl(e.KeyChar)) {
controlKey = true;
} else {
controlKey = false;
}
}
protected override void OnTextChanged(System.EventArgs e) {
base.OnTextChanged(e);
if (this.Text != "" && !controlKey) {
string matchText = this.Text;
int match = this.FindString(matchText);
if (match != -1) {
this.SelectedIndex = match;
this.SelectionStart = matchText.Length;
this.SelectionLength = this.Text.Length - this.SelectionStart;
}
}
}
}

</source>

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Csharp/C Sharp/Components/ComboBox - История изменений

в 15:31, 26 мая 2010

Admin: 1 версия