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>