Csharp/CSharp Tutorial/GUI Windows Forms/DomainUpDown
Содержание
ColorUpDown
<source lang="csharp">using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data;
public class MainForm : System.Windows.Forms.Form
{
private System.Windows.Forms.DomainUpDown knownColorUpDown;
public MainForm()
{
this.knownColorUpDown = new System.Windows.Forms.DomainUpDown();
this.SuspendLayout();
//
// knownColorUpDown
//
this.knownColorUpDown.Location = new System.Drawing.Point(112, 56);
this.knownColorUpDown.Name = "knownColorUpDown";
this.knownColorUpDown.Size = new System.Drawing.Size(152, 20);
this.knownColorUpDown.TabIndex = 0;
this.knownColorUpDown.SelectedItemChanged += new System.EventHandler(this.knownColorUpDown_SelectedItemChanged);
//
// MainForm
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(376, 150);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.knownColorUpDown});
this.Text = "ColorUpDown Example";
this.ResumeLayout(false);
string [] colorNames = Enum.GetNames(typeof(KnownColor));
knownColorUpDown.Items.AddRange(colorNames);
knownColorUpDown.SelectedIndex = 0;
}
static void Main()
{
Application.Run(new MainForm());
}
private void knownColorUpDown_SelectedItemChanged(object sender, System.EventArgs e)
{
string currentColorName = (string)knownColorUpDown.SelectedItem;
try
{
BackColor = Color.FromName(currentColorName);
}
catch(ArgumentException exception)
{
MessageBox.Show(exception.Message);
}
}
}</source>
DomainUpDown: selected item changed event
<source lang="csharp">using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; public class UpDownForm : System.Windows.Forms.Form {
private System.ruponentModel.Container components = null;
private System.Windows.Forms.Label lblCurrSel;
private System.Windows.Forms.Button btnGetSelections;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.NumericUpDown numericUpDown;
private System.Windows.Forms.DomainUpDown domainUpDown;
public UpDownForm()
{
InitializeComponent();
domainUpDown.SelectedIndex = 2;
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
private void InitializeComponent()
{
this.label1 = new System.Windows.Forms.Label();
this.label2 = new System.Windows.Forms.Label();
this.numericUpDown = new System.Windows.Forms.NumericUpDown();
this.domainUpDown = new System.Windows.Forms.DomainUpDown();
this.btnGetSelections = new System.Windows.Forms.Button();
this.lblCurrSel = new System.Windows.Forms.Label();
((System.ruponentModel.ISupportInitialize)(this.numericUpDown)).BeginInit();
this.SuspendLayout();
//
// label1
//
this.label1.Font = new System.Drawing.Font("Verdana", 12F);
this.label1.Location = new System.Drawing.Point(8, 24);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(224, 32);
this.label1.TabIndex = 2;
this.label1.Text = "Domain UpDown Control";
//
// label2
//
this.label2.Font = new System.Drawing.Font("Verdana", 12F);
this.label2.Location = new System.Drawing.Point(8, 80);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(232, 32);
this.label2.TabIndex = 3;
this.label2.Text = "Numeric UpDown Control";
//
// numericUpDown
//
this.numericUpDown.Location = new System.Drawing.Point(264, 80);
this.numericUpDown.Maximum = new System.Decimal(new int[] {
5000,
0,
0,
0});
this.numericUpDown.Name = "numericUpDown";
this.numericUpDown.Size = new System.Drawing.Size(168, 20);
this.numericUpDown.TabIndex = 1;
this.numericUpDown.ThousandsSeparator = true;
this.numericUpDown.UpDownAlign = System.Windows.Forms.LeftRightAlignment.Left;
this.numericUpDown.ValueChanged += new System.EventHandler(this.numericUpDown_ValueChanged);
//
// domainUpDown
//
this.domainUpDown.Items.Add("A");
this.domainUpDown.Items.Add("B");
this.domainUpDown.Items.Add("C");
this.domainUpDown.Items.Add("D");
this.domainUpDown.Location = new System.Drawing.Point(264, 24);
this.domainUpDown.Name = "domainUpDown";
this.domainUpDown.Size = new System.Drawing.Size(168, 20);
this.domainUpDown.Sorted = true;
this.domainUpDown.TabIndex = 0;
this.domainUpDown.Text = "domainUpDown1";
this.domainUpDown.Wrap = true;
this.domainUpDown.SelectedItemChanged += new System.EventHandler(this.domainUpDown_SelectedItemChanged);
//
// btnGetSelections
//
this.btnGetSelections.Location = new System.Drawing.Point(16, 136);
this.btnGetSelections.Name = "btnGetSelections";
this.btnGetSelections.Size = new System.Drawing.Size(136, 24);
this.btnGetSelections.TabIndex = 4;
this.btnGetSelections.Text = "Get Current Selections";
this.btnGetSelections.Click += new System.EventHandler(this.btnGetSelections_Click);
//
// lblCurrSel
//
this.lblCurrSel.BackColor = System.Drawing.Color.Linen;
this.lblCurrSel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.lblCurrSel.Location = new System.Drawing.Point(176, 120);
this.lblCurrSel.Name = "lblCurrSel";
this.lblCurrSel.Size = new System.Drawing.Size(256, 48);
this.lblCurrSel.TabIndex = 5;
//
// UpDownForm
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(448, 181);
this.Controls.Add(this.lblCurrSel);
this.Controls.Add(this.btnGetSelections);
this.Controls.Add(this.label2);
this.Controls.Add(this.label1);
this.Controls.Add(this.numericUpDown);
this.Controls.Add(this.domainUpDown);
this.Name = "UpDownForm";
this.Text = "Spin Controls";
((System.ruponentModel.ISupportInitialize)(this.numericUpDown)).EndInit();
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run(new UpDownForm());
}
protected void numericUpDown_ValueChanged (object sender, System.EventArgs e)
{
this.Text = "You changed the numeric value...";
}
protected void domainUpDown_SelectedItemChanged (object sender, System.EventArgs e)
{
this.Text = "You changed the string value...";
}
protected void btnGetSelections_Click (object sender, System.EventArgs e)
{
// Get info from updowns...
lblCurrSel.Text = string.Format("String: {0}\nNumber: {1}", domainUpDown.Text, numericUpDown.Value);
}
}</source>
DomainUpDown selected value changed event
<source lang="csharp">using System; using System.Drawing; using System.Windows.Forms; public class DomainUpDowns : Form {
DomainUpDown dupdwn;
public DomainUpDowns()
{
Size = new Size(480,580);
dupdwn = new DomainUpDown();
dupdwn.Parent = this;
dupdwn.Location = new Point(50, 50);
dupdwn.Size = new Size(150,dupdwn.PreferredHeight);
dupdwn.ReadOnly = true;
dupdwn.TextAlign = HorizontalAlignment.Center;
dupdwn.UpDownAlign = LeftRightAlignment.Left;
dupdwn.Wrap = true;
dupdwn.SelectedItemChanged += new EventHandler(dupdwn_OnSelectedItemChanged);
dupdwn.Items.Add(BorderStyle.Fixed3D);
dupdwn.Items.Add(BorderStyle.FixedSingle);
dupdwn.Items.Add(BorderStyle.None);
dupdwn.SelectedIndex = 0; // zero-based index
}
private void dupdwn_OnSelectedItemChanged(object sender, EventArgs e)
{
Console.WriteLine(dupdwn.SelectedItem);
}
static void Main()
{
Application.Run(new DomainUpDowns());
}
}</source>
Get value from DomainUpDomain
<source lang="csharp">using System; using System.Drawing; using System.Collections; using System.ruponentModel; using System.Windows.Forms; using System.Data; public class UpDownForm : System.Windows.Forms.Form {
private System.ruponentModel.Container components = null;
private System.Windows.Forms.Label lblCurrSel;
private System.Windows.Forms.Button btnGetSelections;
private System.Windows.Forms.Label label2;
private System.Windows.Forms.Label label1;
private System.Windows.Forms.NumericUpDown numericUpDown;
private System.Windows.Forms.DomainUpDown domainUpDown;
public UpDownForm()
{
InitializeComponent();
domainUpDown.SelectedIndex = 2;
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
private void InitializeComponent()
{
this.label1 = new System.Windows.Forms.Label();
this.label2 = new System.Windows.Forms.Label();
this.numericUpDown = new System.Windows.Forms.NumericUpDown();
this.domainUpDown = new System.Windows.Forms.DomainUpDown();
this.btnGetSelections = new System.Windows.Forms.Button();
this.lblCurrSel = new System.Windows.Forms.Label();
((System.ruponentModel.ISupportInitialize)(this.numericUpDown)).BeginInit();
this.SuspendLayout();
//
// label1
//
this.label1.Font = new System.Drawing.Font("Verdana", 12F);
this.label1.Location = new System.Drawing.Point(8, 24);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(224, 32);
this.label1.TabIndex = 2;
this.label1.Text = "Domain UpDown Control";
//
// label2
//
this.label2.Font = new System.Drawing.Font("Verdana", 12F);
this.label2.Location = new System.Drawing.Point(8, 80);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(232, 32);
this.label2.TabIndex = 3;
this.label2.Text = "Numeric UpDown Control";
//
// numericUpDown
//
this.numericUpDown.Location = new System.Drawing.Point(264, 80);
this.numericUpDown.Maximum = new System.Decimal(new int[] {
5000,
0,
0,
0});
this.numericUpDown.Name = "numericUpDown";
this.numericUpDown.Size = new System.Drawing.Size(168, 20);
this.numericUpDown.TabIndex = 1;
this.numericUpDown.ThousandsSeparator = true;
this.numericUpDown.UpDownAlign = System.Windows.Forms.LeftRightAlignment.Left;
this.numericUpDown.ValueChanged += new System.EventHandler(this.numericUpDown_ValueChanged);
//
// domainUpDown
//
this.domainUpDown.Items.Add("A");
this.domainUpDown.Items.Add("B");
this.domainUpDown.Items.Add("C");
this.domainUpDown.Items.Add("D");
this.domainUpDown.Location = new System.Drawing.Point(264, 24);
this.domainUpDown.Name = "domainUpDown";
this.domainUpDown.Size = new System.Drawing.Size(168, 20);
this.domainUpDown.Sorted = true;
this.domainUpDown.TabIndex = 0;
this.domainUpDown.Text = "domainUpDown1";
this.domainUpDown.Wrap = true;
this.domainUpDown.SelectedItemChanged += new System.EventHandler(this.domainUpDown_SelectedItemChanged);
//
// btnGetSelections
//
this.btnGetSelections.Location = new System.Drawing.Point(16, 136);
this.btnGetSelections.Name = "btnGetSelections";
this.btnGetSelections.Size = new System.Drawing.Size(136, 24);
this.btnGetSelections.TabIndex = 4;
this.btnGetSelections.Text = "Get Current Selections";
this.btnGetSelections.Click += new System.EventHandler(this.btnGetSelections_Click);
//
// lblCurrSel
//
this.lblCurrSel.BackColor = System.Drawing.Color.Linen;
this.lblCurrSel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.lblCurrSel.Location = new System.Drawing.Point(176, 120);
this.lblCurrSel.Name = "lblCurrSel";
this.lblCurrSel.Size = new System.Drawing.Size(256, 48);
this.lblCurrSel.TabIndex = 5;
//
// UpDownForm
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(448, 181);
this.Controls.Add(this.lblCurrSel);
this.Controls.Add(this.btnGetSelections);
this.Controls.Add(this.label2);
this.Controls.Add(this.label1);
this.Controls.Add(this.numericUpDown);
this.Controls.Add(this.domainUpDown);
this.Name = "UpDownForm";
this.Text = "Spin Controls";
((System.ruponentModel.ISupportInitialize)(this.numericUpDown)).EndInit();
this.ResumeLayout(false);
}
[STAThread]
static void Main()
{
Application.Run(new UpDownForm());
}
protected void numericUpDown_ValueChanged (object sender, System.EventArgs e)
{
this.Text = "You changed the numeric value...";
}
protected void domainUpDown_SelectedItemChanged (object sender, System.EventArgs e)
{
this.Text = "You changed the string value...";
}
protected void btnGetSelections_Click (object sender, System.EventArgs e)
{
// Get info from updowns...
lblCurrSel.Text = string.Format("String: {0}\nNumber: {1}", domainUpDown.Text, numericUpDown.Value);
}
}</source>
Remove selected item from DomainUpDown
<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 System.Windows.Forms.Button button2;
private System.Windows.Forms.TextBox textBox1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.DomainUpDown UPDOWN_DOMAIN;
private System.Windows.Forms.Label label1;
public Form1() {
this.button2 = new System.Windows.Forms.Button();
this.textBox1 = new System.Windows.Forms.TextBox();
this.button1 = new System.Windows.Forms.Button();
this.UPDOWN_DOMAIN = new System.Windows.Forms.DomainUpDown();
this.label1 = new System.Windows.Forms.Label();
this.SuspendLayout();
//
this.button2.Location = new System.Drawing.Point(136, 80);
this.button2.Name = "button2";
this.button2.TabIndex = 8;
this.button2.Text = "Add Item";
//
this.textBox1.Location = new System.Drawing.Point(24, 80);
this.textBox1.Name = "textBox1";
this.textBox1.TabIndex = 7;
this.textBox1.Text = "";
//
this.button1.Location = new System.Drawing.Point(264, 40);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(64, 23);
this.button1.TabIndex = 6;
this.button1.Text = "Remove";
//
this.UPDOWN_DOMAIN.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(255)), ((System.Byte)(192)), ((System.Byte)(192)));
this.UPDOWN_DOMAIN.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.UPDOWN_DOMAIN.ForeColor = System.Drawing.SystemColors.HotTrack;
this.UPDOWN_DOMAIN.Location = new System.Drawing.Point(24, 40);
this.UPDOWN_DOMAIN.Name = "UPDOWN_DOMAIN";
this.UPDOWN_DOMAIN.Size = new System.Drawing.Size(232, 26);
this.UPDOWN_DOMAIN.Sorted = true;
this.UPDOWN_DOMAIN.TabIndex = 5;
this.UPDOWN_DOMAIN.TextAlign = System.Windows.Forms.HorizontalAlignment.Center;
this.UPDOWN_DOMAIN.UpDownAlign = System.Windows.Forms.LeftRightAlignment.Left;
this.UPDOWN_DOMAIN.Wrap = true;
//
// label1
//
this.label1.Location = new System.Drawing.Point(24, 16);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(136, 23);
this.label1.TabIndex = 9;
this.label1.Text = "UpDownDomain Control";
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(344, 117);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.label1,
this.UPDOWN_DOMAIN,
this.button1,
this.button2,
this.textBox1});
this.Text = "UpDownDomain Control";
this.Load += new System.EventHandler(this.Form1_Load);
this.ResumeLayout(false);
}
[STAThread]
static void Main() {
Application.Run(new Form1());
}
private void Form1_Load(object sender, System.EventArgs e) {
UPDOWN_DOMAIN.Items.Add("A");
UPDOWN_DOMAIN.Items.Add("B");
UPDOWN_DOMAIN.Items.Add("C");
UPDOWN_DOMAIN.Items.Add("D");
UPDOWN_DOMAIN.Items.Add("E");
UPDOWN_DOMAIN.Items.Add("F");
UPDOWN_DOMAIN.Items.Add("G");
UPDOWN_DOMAIN.Items.Add("H");
UPDOWN_DOMAIN.Items.Add("I");
UPDOWN_DOMAIN.Items.Add("J");
UPDOWN_DOMAIN.Items.Add("K");
UPDOWN_DOMAIN.Items.Add("L");
UPDOWN_DOMAIN.Items.Add("M");
UPDOWN_DOMAIN.Items.Add("N");
UPDOWN_DOMAIN.Items.Add("O");
UPDOWN_DOMAIN.Items.Add("P");
}
private void button1_Click(object sender, System.EventArgs e) {
int nItemSel = UPDOWN_DOMAIN.SelectedIndex;
if (nItemSel >= 0) {
UPDOWN_DOMAIN.Items.RemoveAt(nItemSel);
UPDOWN_DOMAIN.Update();
UPDOWN_DOMAIN.Text = "";
}
}
private void button2_Click(object sender, System.EventArgs e) {
if (textBox1.Text == "") {
MessageBox.Show("Enter a string to add");
return;
}
UPDOWN_DOMAIN.Items.Add(textBox1.Text);
textBox1.Text = "";
}
}</source>
Subclass DomainUpDown
<source lang="csharp">using System; using System.Windows.Forms; public class MyUpDownControl : System.Windows.Forms.DomainUpDown {
private int currentPos = 0;
private string DisplayText = "";
public MyUpDownControl() {
Items.Add("FRANCE");
Items.Add("ITALY");
Items.Add("USA");
Items.Add("UK");
Items.Add("AUSTRALIA");
Items.Add("INDIA");
Items.Add("ZAMBIA");
Items.Add("MALASYIA");
}
public override void DownButton() {
currentPos++;
if (currentPos >= Items.Count)
currentPos = 0;
UpdateEditText();
}
public override void UpButton() {
currentPos--;
if (currentPos < 0) currentPos = Items.Count - 1;
UpdateEditText();
}
protected override void UpdateEditText() {
DisplayText = (string)this.Items[currentPos];
this.Text = DisplayText;
}
public void Sort() {
if (this.Sorted)
this.Sorted = false;
else
this.Sorted = true;
if (this.Sorted)
this.Sort();
UpdateEditText();
}
} public class Form1 : System.Windows.Forms.Form {
private System.ruponentModel.Container components = null;
private System.Windows.Forms.Label label1;
private MyUpDownControl mDC = null;
public Form1() {
this.mDC = new MyUpDownControl();
this.label1 = new System.Windows.Forms.Label();
this.SuspendLayout();
this.mDC.Items.Add("FRANCE");
this.mDC.Items.Add("ITALY");
this.mDC.Items.Add("USA");
this.mDC.Items.Add("UK");
this.mDC.Items.Add("AUSTRALIA");
this.mDC.Items.Add("INDIA");
this.mDC.Items.Add("ZAMBIA");
this.mDC.Items.Add("MALASYIA");
this.mDC.Location = new System.Drawing.Point(40, 40);
this.label1.Location = new System.Drawing.Point(16, 16);
this.label1.Size = new System.Drawing.Size(200, 16);
this.label1.Text = "Derived DomainUpDown Controller";
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(248, 85);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.label1,
this.mDC});
this.Text = "My Domain Controller";
this.ResumeLayout(false);
}
[STAThread]
static void Main() {
Application.Run(new Form1());
}
}</source>
TextAlign and UpDownAlign
<source lang="csharp">using System; using System.Drawing; using System.Windows.Forms; public class DomainUpDowns : Form {
DomainUpDown dupdwn;
public DomainUpDowns()
{
Size = new Size(480,580);
dupdwn = new DomainUpDown();
dupdwn.Parent = this;
dupdwn.Location = new Point(50, 50);
dupdwn.Size = new Size(150,dupdwn.PreferredHeight);
dupdwn.ReadOnly = true;
dupdwn.TextAlign = HorizontalAlignment.Center;
dupdwn.UpDownAlign = LeftRightAlignment.Left;
dupdwn.Wrap = true;
dupdwn.SelectedItemChanged += new EventHandler(dupdwn_OnSelectedItemChanged);
dupdwn.Items.Add(BorderStyle.Fixed3D);
dupdwn.Items.Add(BorderStyle.FixedSingle);
dupdwn.Items.Add(BorderStyle.None);
dupdwn.SelectedIndex = 0; // zero-based index
}
private void dupdwn_OnSelectedItemChanged(object sender, EventArgs e)
{
Console.WriteLine(dupdwn.SelectedItem);
}
static void Main()
{
Application.Run(new DomainUpDowns());
}
}</source>
