Csharp/C Sharp by API/System.Windows.Forms/CheckBox — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
Admin (обсуждение | вклад) м (1 версия) |
(нет различий)
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Текущая версия на 15:09, 26 мая 2010
Содержание
CheckBox.CheckAlign
<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.Label label1; private System.Windows.Forms.GroupBox groupBox1; private System.Windows.Forms.CheckBox chk_option1; private System.Windows.Forms.CheckBox chk_option2; private System.Windows.Forms.CheckBox chk_option3; private System.Windows.Forms.CheckBox chk_option4; private System.Windows.Forms.Button button1; public Form1() { this.chk_option1 = new System.Windows.Forms.CheckBox(); this.label1 = new System.Windows.Forms.Label(); this.chk_option2 = new System.Windows.Forms.CheckBox(); this.chk_option3 = new System.Windows.Forms.CheckBox(); this.chk_option4 = new System.Windows.Forms.CheckBox(); this.groupBox1 = new System.Windows.Forms.GroupBox(); this.button1 = new System.Windows.Forms.Button(); this.groupBox1.SuspendLayout(); this.SuspendLayout(); // // chk_option1 // this.chk_option1.CheckAlign = System.Drawing.ContentAlignment.MiddleRight; this.chk_option1.Location = new System.Drawing.Point(40, 24); this.chk_option1.Name = "chk_option1"; this.chk_option1.Size = new System.Drawing.Size(192, 24); this.chk_option1.TabIndex = 0; this.chk_option1.Text = "Windows 2000 / Windows XP"; this.chk_option1.ThreeState = true; // // label1 // this.label1.Location = new System.Drawing.Point(16, 24); this.label1.Name = "label1"; this.label1.Size = new System.Drawing.Size(296, 16); this.label1.TabIndex = 1; this.label1.Text = "The following products are developed by Microsoft Corp."; // // chk_option2 // this.chk_option2.Location = new System.Drawing.Point(40, 56); this.chk_option2.Name = "chk_option2"; this.chk_option2.Size = new System.Drawing.Size(192, 24); this.chk_option2.TabIndex = 0; this.chk_option2.Text = "JAVA"; // // chk_option3 // this.chk_option3.Appearance = System.Windows.Forms.Appearance.Button; this.chk_option3.ImageAlign = System.Drawing.ContentAlignment.MiddleRight; this.chk_option3.Location = new System.Drawing.Point(40, 88); this.chk_option3.Name = "chk_option3"; this.chk_option3.Size = new System.Drawing.Size(192, 24); this.chk_option3.TabIndex = 0; this.chk_option3.Text = "Visual C# and .NET"; // // chk_option4 // this.chk_option4.Appearance = System.Windows.Forms.Appearance.Button; this.chk_option4.FlatStyle = System.Windows.Forms.FlatStyle.Flat; this.chk_option4.Location = new System.Drawing.Point(40, 120); this.chk_option4.Name = "chk_option4"; this.chk_option4.Size = new System.Drawing.Size(192, 24); this.chk_option4.TabIndex = 0; this.chk_option4.Text = "Oracle Database"; // // groupBox1 // this.groupBox1.Controls.AddRange(new System.Windows.Forms.Control[] { this.chk_option2, this.chk_option4, this.chk_option3, this.chk_option1}); this.groupBox1.Location = new System.Drawing.Point(16, 56); this.groupBox1.Name = "groupBox1"; this.groupBox1.Size = new System.Drawing.Size(280, 152); this.groupBox1.TabIndex = 2; this.groupBox1.TabStop = false; this.groupBox1.Text = "Select All Correct Options"; // // button1 // this.button1.Location = new System.Drawing.Point(16, 216); this.button1.Name = "button1"; this.button1.TabIndex = 3; this.button1.Text = "Done "; this.button1.Click += new System.EventHandler(this.button1_Click); // // Form1 // this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClientSize = new System.Drawing.Size(328, 253); this.Controls.AddRange(new System.Windows.Forms.Control[] { this.button1, this.groupBox1, this.label1}); this.Name = "Form1"; this.Text = "Check Boxes"; this.Load += new System.EventHandler(this.Form1_Load); this.groupBox1.ResumeLayout(false); this.ResumeLayout(false); }
/// <summary> /// The main entry point for the application. /// </summary> [STAThread] static void Main() { Application.Run(new Form1()); } private void Form1_Load(object sender, System.EventArgs e) { Image imga = Image.FromFile("A.ICO"); chk_option3.Image = imga; chk_option3.ImageAlign = ContentAlignment.MiddleRight; chk_option3.BackColor = Color.LightBlue; imga = Image.FromFile("B.ICO"); chk_option4.Image = imga; chk_option4.ImageAlign = ContentAlignment.MiddleCenter; chk_option4.BackColor = Color.LightBlue; } private void button1_Click(object sender, System.EventArgs e) { string str_opt_selected = "Options Selected are ..\n"; if (chk_option1.Checked) str_opt_selected = str_opt_selected + chk_option1.Text + "\n"; if (chk_option2.Checked) str_opt_selected = str_opt_selected + chk_option2.Text + "\n"; if (chk_option3.Checked) str_opt_selected = str_opt_selected + chk_option3.Text + "\n"; if (chk_option4.Checked) str_opt_selected = str_opt_selected + chk_option4.Text + "\n"; MessageBox.Show(str_opt_selected, "Checked Options"); }
}
</source>
CheckBox.Checked
<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.GroupBox groupBox1; private System.Windows.Forms.CheckBox checkBox1; private System.Windows.Forms.CheckBox checkBox2; private System.Windows.Forms.CheckBox checkBox3; private System.Windows.Forms.RadioButton radioButton1; private System.Windows.Forms.RadioButton radioButton2; private System.Windows.Forms.RadioButton radioButton3; private System.Windows.Forms.Button button1; private System.ruponentModel.Container components = null; public Form1() { InitializeComponent(); } private void InitializeComponent() { this.groupBox1 = new System.Windows.Forms.GroupBox(); this.checkBox1 = new System.Windows.Forms.CheckBox(); this.checkBox2 = new System.Windows.Forms.CheckBox(); this.checkBox3 = new System.Windows.Forms.CheckBox(); this.radioButton1 = new System.Windows.Forms.RadioButton(); this.radioButton2 = new System.Windows.Forms.RadioButton(); this.radioButton3 = new System.Windows.Forms.RadioButton(); this.button1 = new System.Windows.Forms.Button(); this.groupBox1.SuspendLayout(); this.SuspendLayout(); // // groupBox1 // this.groupBox1.Controls.AddRange(new System.Windows.Forms.Control[] { this.radioButton1, this.radioButton2, this.radioButton3}); this.groupBox1.Location = new System.Drawing.Point(8, 120); this.groupBox1.Name = "groupBox1"; this.groupBox1.Size = new System.Drawing.Size(120, 144); this.groupBox1.TabIndex = 0; this.groupBox1.TabStop = false; this.groupBox1.Text = "Color"; this.groupBox1.Enter += new System.EventHandler(this.groupBox1_Enter); // // checkBox1 // this.checkBox1.Location = new System.Drawing.Point(8, 8); this.checkBox1.Name = "checkBox1"; this.checkBox1.TabIndex = 1; this.checkBox1.Text = "Circle"; // // checkBox2 // this.checkBox2.Location = new System.Drawing.Point(8, 40); this.checkBox2.Name = "checkBox2"; this.checkBox2.TabIndex = 2; this.checkBox2.Text = "Rectangle"; // // checkBox3 // this.checkBox3.Location = new System.Drawing.Point(8, 72); this.checkBox3.Name = "checkBox3"; this.checkBox3.TabIndex = 3; this.checkBox3.Text = "String"; // // radioButton1 // this.radioButton1.Location = new System.Drawing.Point(8, 32); this.radioButton1.Name = "radioButton1"; this.radioButton1.TabIndex = 4; this.radioButton1.Text = "Red"; this.radioButton1.CheckedChanged += new System.EventHandler(this.radioButton1_CheckedChanged); // // radioButton2 // this.radioButton2.Location = new System.Drawing.Point(8, 64); this.radioButton2.Name = "radioButton2"; this.radioButton2.TabIndex = 5; this.radioButton2.Text = "Green"; // // radioButton3 // this.radioButton3.Location = new System.Drawing.Point(8, 96); this.radioButton3.Name = "radioButton3"; this.radioButton3.TabIndex = 6; this.radioButton3.Text = "Blue"; // // button1 // this.button1.Location = new System.Drawing.Point(8, 280); this.button1.Name = "button1"; this.button1.Size = new System.Drawing.Size(112, 32); this.button1.TabIndex = 4; this.button1.Text = "Draw"; this.button1.Click += new System.EventHandler(this.button1_Click); // // Form1 // this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClientSize = new System.Drawing.Size(408, 317); this.Controls.AddRange(new System.Windows.Forms.Control[] { this.button1, this.checkBox3, this.checkBox2, this.checkBox1, this.groupBox1}); this.Name = "Form1"; this.Text = "CheckBox and RadioButton Sample"; this.groupBox1.ResumeLayout(false); this.ResumeLayout(false); } [STAThread] static void Main() { Application.Run(new Form1()); } private void groupBox1_Enter(object sender, System.EventArgs e) { Console.WriteLine("group box enter event"); } private void radioButton1_CheckedChanged(object sender, System.EventArgs e) { Console.WriteLine("Radio Button checked changed event"); } private void button1_Click(object sender, System.EventArgs e) { Graphics g = Graphics.FromHwnd(this.Handle); String str = ""; Rectangle rc = new Rectangle(150, 50, 250, 250); if(radioButton1.Checked) { str = "red"; } if(radioButton2.Checked) { str+="Green"; } if(radioButton3.Checked) { str+="Blue"; } if (checkBox1.Checked) { str+="Ellipse"; } if (checkBox2.Checked) { str += "Rectangle"; } if (checkBox3.Checked) { g.FillRectangle(new SolidBrush(Color.White), rc); g.DrawString(str, new Font("Verdana", 12), new SolidBrush(Color.Black), rc); } } } </source>
CheckBox.CheckedChanged
<source lang="csharp"> using System; using System.Drawing; using System.Windows.Forms;
class RadioButtons: Form {
bool bFillEllipse; Color colorEllipse; static void Main() { Application.Run(new RadioButtons()); } RadioButtons() { ResizeRedraw = true; string[] astrColor = { "Black", "Blue", "Green", "Cyan"}; GroupBox grpbox = new GroupBox(); grpbox.Parent = this; grpbox.Text = "Color"; grpbox.Location = new Point(Font.Height / 2, Font.Height / 2); grpbox.Size = new Size(9 * Font.Height, (3 * astrColor.Length + 4) * Font.Height / 2); for (int i = 0; i < astrColor.Length; i++) { RadioButton radiobtn = new RadioButton(); radiobtn.Parent = grpbox; radiobtn.Text = astrColor[i]; radiobtn.Location = new Point(Font.Height,3 * (i + 1) * Font.Height / 2); radiobtn.Size = new Size(7 * Font.Height,3 * Font.Height / 2); radiobtn.CheckedChanged += new EventHandler(RadioButtonOnCheckedChanged); radiobtn.Checked = true; } CheckBox chkbox = new CheckBox(); chkbox.Parent = this; chkbox.Text = "Fill Ellipse"; chkbox.Location = new Point(Font.Height, 3 * (astrColor.Length + 2) * Font.Height / 2); chkbox.Size = new Size(Font.Height * 7, 3 * Font.Height / 2); chkbox.CheckedChanged += new EventHandler(CheckBoxOnCheckedChanged); } void RadioButtonOnCheckedChanged(object obj, EventArgs ea) { RadioButton radiobtn = (RadioButton) obj; if(radiobtn.Checked) { colorEllipse = Color.FromName(radiobtn.Text); Invalidate(false); } } void CheckBoxOnCheckedChanged(object obj, EventArgs ea) { bFillEllipse = ((CheckBox)obj).Checked; Invalidate(false); } protected override void OnPaint(PaintEventArgs pea) { Graphics grfx = pea.Graphics; Rectangle rect = new Rectangle(10 * Font.Height, 0, ClientSize.Width - 10 * Font.Height - 1, ClientSize.Height - 1); if(bFillEllipse) grfx.FillEllipse(new SolidBrush(colorEllipse), rect); else grfx.DrawEllipse(new Pen(colorEllipse), rect); }
}
</source>
CheckBox.ThreeState
<source lang="csharp"> /* 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.ruponentModel; using System.Windows.Forms; using System.Data; namespace CheckBox {
/// <summary> /// Summary description for CheckBoxStyle. /// </summary> public class CheckBoxStyle : System.Windows.Forms.Form { private System.Windows.Forms.Label label1; private System.Windows.Forms.GroupBox groupBox1; private System.Windows.Forms.CheckBox chk_option1; private System.Windows.Forms.CheckBox chk_option2; private System.Windows.Forms.CheckBox chk_option3; private System.Windows.Forms.CheckBox chk_option4; private System.Windows.Forms.Button button1; /// <summary> /// Required designer variable. /// </summary> private System.ruponentModel.Container components = null; public CheckBoxStyle() { // // Required for Windows Form Designer support // InitializeComponent(); // // TODO: Add any constructor code after InitializeComponent call // } /// <summary> /// Clean up any resources being used. /// </summary> protected override void Dispose( bool disposing ) { if( disposing ) { if (components != null) { components.Dispose(); } } base.Dispose( disposing ); } #region Windows Form Designer generated code /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> private void InitializeComponent() { this.chk_option1 = new System.Windows.Forms.CheckBox(); this.label1 = new System.Windows.Forms.Label(); this.chk_option2 = new System.Windows.Forms.CheckBox(); this.chk_option3 = new System.Windows.Forms.CheckBox(); this.chk_option4 = new System.Windows.Forms.CheckBox(); this.groupBox1 = new System.Windows.Forms.GroupBox(); this.button1 = new System.Windows.Forms.Button(); this.groupBox1.SuspendLayout(); this.SuspendLayout(); // // chk_option1 // this.chk_option1.CheckAlign = System.Drawing.ContentAlignment.MiddleRight; this.chk_option1.Location = new System.Drawing.Point(40, 24); this.chk_option1.Name = "chk_option1"; this.chk_option1.Size = new System.Drawing.Size(192, 24); this.chk_option1.TabIndex = 0; this.chk_option1.Text = "Windows 2000 / Windows XP"; this.chk_option1.ThreeState = true; // // label1 // this.label1.Location = new System.Drawing.Point(16, 24); this.label1.Name = "label1"; this.label1.Size = new System.Drawing.Size(296, 16); this.label1.TabIndex = 1; this.label1.Text = "The following products are developed by Microsoft Corp."; // // chk_option2 // this.chk_option2.Location = new System.Drawing.Point(40, 56); this.chk_option2.Name = "chk_option2"; this.chk_option2.Size = new System.Drawing.Size(192, 24); this.chk_option2.TabIndex = 0; this.chk_option2.Text = "JAVA"; // // chk_option3 // this.chk_option3.Appearance = System.Windows.Forms.Appearance.Button; this.chk_option3.ImageAlign = System.Drawing.ContentAlignment.MiddleRight; this.chk_option3.Location = new System.Drawing.Point(40, 88); this.chk_option3.Name = "chk_option3"; this.chk_option3.Size = new System.Drawing.Size(192, 24); this.chk_option3.TabIndex = 0; this.chk_option3.Text = "Visual C# and .NET"; // // chk_option4 // this.chk_option4.Appearance = System.Windows.Forms.Appearance.Button; this.chk_option4.FlatStyle = System.Windows.Forms.FlatStyle.Flat; this.chk_option4.Location = new System.Drawing.Point(40, 120); this.chk_option4.Name = "chk_option4"; this.chk_option4.Size = new System.Drawing.Size(192, 24); this.chk_option4.TabIndex = 0; this.chk_option4.Text = "Oracle Database"; // // groupBox1 // this.groupBox1.Controls.AddRange(new System.Windows.Forms.Control[] { this.chk_option2, this.chk_option4, this.chk_option3, this.chk_option1}); this.groupBox1.Location = new System.Drawing.Point(16, 56); this.groupBox1.Name = "groupBox1"; this.groupBox1.Size = new System.Drawing.Size(280, 152); this.groupBox1.TabIndex = 2; this.groupBox1.TabStop = false; this.groupBox1.Text = "Select All Correct Options"; // // button1 // this.button1.Location = new System.Drawing.Point(16, 216); this.button1.Name = "button1"; this.button1.TabIndex = 3; this.button1.Text = "Done "; this.button1.Click += new System.EventHandler(this.button1_Click); // // CheckBoxStyle // this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClientSize = new System.Drawing.Size(328, 253); this.Controls.AddRange(new System.Windows.Forms.Control[] { this.button1, this.groupBox1, this.label1}); this.Name = "CheckBoxStyle"; this.Text = "Check Boxes"; this.Load += new System.EventHandler(this.CheckBoxStyle_Load); this.groupBox1.ResumeLayout(false); this.ResumeLayout(false); } #endregion /// <summary> /// The main entry point for the application. /// </summary> [STAThread] static void Main() { Application.Run(new CheckBoxStyle()); } private void CheckBoxStyle_Load(object sender, System.EventArgs e) { // Load the Image that we want to display on the button Image imga = Image.FromFile("WRENCH.ICO"); // Assign the Image for the checkbox chk_option3.Image = imga; // Align the image on the face of the checkbox chk_option3.ImageAlign = ContentAlignment.MiddleRight; // Select the background color for the checkbox chk_option3.BackColor = Color.LightBlue ; // Load the Image that we want to display on the button imga = Image.FromFile("EYE.ICO"); // Assign the Image for the checkbox chk_option4.Image = imga; // Align the image on the face of the checkbox chk_option4.ImageAlign = ContentAlignment.MiddleCenter; // Select the background color for the checkbox chk_option4.BackColor = Color.LightBlue ; } private void button1_Click(object sender, System.EventArgs e) { string str_opt_selected = "Options Selected are ..\n" ; // Check which options are selected for every checkbox // using the Checked property if ( chk_option1.Checked ) str_opt_selected = str_opt_selected + chk_option1.Text + "\n"; if ( chk_option2.Checked ) str_opt_selected = str_opt_selected + chk_option2.Text + "\n"; if ( chk_option3.Checked ) str_opt_selected = str_opt_selected + chk_option3.Text + "\n"; if ( chk_option4.Checked ) str_opt_selected = str_opt_selected + chk_option4.Text + "\n"; MessageBox.Show(str_opt_selected , "Checked Options"); } }
}
</source>
extends CheckBox
<source lang="csharp"> using System; using System.Drawing; using System.Windows.Forms;
class CustomCheckBox: Form {
public static void Main() { Application.Run(new CustomCheckBox()); } public CustomCheckBox() { int cyText = Font.Height; int cxText = cyText / 2; FontStyle[] afs = { FontStyle.Bold, FontStyle.Italic, FontStyle.Underline, FontStyle.Strikeout }; Label label = new Label(); label.Parent = this; label.Text = "Sample Text"; label.AutoSize = true; for (int i = 0; i < 4; i++) { FontStyleCheckBox chkbox = new FontStyleCheckBox(); chkbox.Parent = this; chkbox.Text = afs[i].ToString(); chkbox.fontstyle = afs[i]; chkbox.Location = new Point(2 * cxText, (4 + 3 * i) * cyText / 2); chkbox.Size = new Size(12 * cxText, cyText); chkbox.CheckedChanged += new EventHandler(CheckBoxOnCheckedChanged); } } void CheckBoxOnCheckedChanged(object obj, EventArgs ea) { FontStyle fs = 0; Label label = null; for (int i = 0; i < Controls.Count; i++) { Control ctrl = Controls[i]; if (ctrl.GetType() == typeof(Label)) label = (Label) ctrl; else if (ctrl.GetType() == typeof(FontStyleCheckBox)) if (((FontStyleCheckBox) ctrl).Checked) fs |= ((FontStyleCheckBox) ctrl).fontstyle; } label.Font = new Font(label.Font, fs); }
} class FontStyleCheckBox: CheckBox {
public FontStyle fontstyle;
}
</source>
new CheckBox()
<source lang="csharp"> using System; using System.Drawing; using System.Windows.Forms;
class CheckBoxWithLabel: Form {
Label label; FontStyle fs = 0; FontStyle[] afs = { FontStyle.Bold,FontStyle.Italic, FontStyle.Underline, FontStyle.Strikeout }; public static void Main() { Application.Run(new CheckBoxWithLabel()); } public CheckBoxWithLabel() { int cyText = Font.Height; int cxText = cyText / 2; string[] astrText = {"Bold", "Italic", "Underline", "Strikeout"}; label = new Label(); label.Parent = this; label.Text = "Sample Text"; label.AutoSize = true; for (int i = 0; i < 4; i++) { CheckBox chkbox = new CheckBox(); chkbox.Parent = this; chkbox.Text = astrText[i]; chkbox.Location = new Point(2 * cxText, (4 + 3 * i) * cyText / 2); chkbox.Size = new Size(12 * cxText, cyText); chkbox.CheckedChanged += new EventHandler(CheckBoxOnCheckedChanged); } } void CheckBoxOnCheckedChanged(object obj, EventArgs ea) { for (int i = 0; i < 4; i++) if (((CheckBox) Controls[i + 1]).Checked) fs |= afs[i]; label.Font = new Font(label.Font, fs); }
}
</source>