TextBox.SelectionLength : TextBox « System.Windows.Forms

   



using System;

using System.Drawing;

using System.Collections;

using System.ComponentModel;

using System.Windows.Forms;

using System.Data;

using System.Text;



public class Form1 : System.Windows.Forms.Form {

    private System.Windows.Forms.TextBox textBox1;

    private System.Windows.Forms.TextBox textBox2;

    private System.Windows.Forms.GroupBox groupBox1;

    private System.Windows.Forms.Label label1;

    private System.Windows.Forms.GroupBox groupBox2;

    private System.Windows.Forms.Label label2;

    public Form1() {

        this.textBox1 = new System.Windows.Forms.TextBox();

        this.textBox2 = new System.Windows.Forms.TextBox();

        this.groupBox1 = new System.Windows.Forms.GroupBox();

        this.label1 = new System.Windows.Forms.Label();

        this.groupBox2 = new System.Windows.Forms.GroupBox();

        this.label2 = new System.Windows.Forms.Label();

        this.groupBox1.SuspendLayout();

        this.groupBox2.SuspendLayout();

        this.SuspendLayout();

        // 

        // textBox1

        // 

        this.textBox1.Location = new System.Drawing.Point(16, 24);

        this.textBox1.Name = "textBox1";

        this.textBox1.Size = new System.Drawing.Size(168, 20);

        this.textBox1.TabIndex = 5;

        this.textBox1.Text = "";

        this.textBox1.KeyDown += new System.Windows.Forms.KeyEventHandler(this.textBox1_KeyDown);

        // 

        // textBox2

        // 

        this.textBox2.Location = new System.Drawing.Point(16, 24);

        this.textBox2.Name = "textBox2";

        this.textBox2.Size = new System.Drawing.Size(168, 20);

        this.textBox2.TabIndex = 6;

        this.textBox2.Text = "";

        this.textBox2.KeyDown += new System.Windows.Forms.KeyEventHandler(this.textBox2_KeyDown);

        // 

        // groupBox1

        // 

        this.groupBox1.Controls.AddRange(new System.Windows.Forms.Control[] {

                                                                                this.label1,

                                                                                this.textBox1});

        this.groupBox1.Location = new System.Drawing.Point(8, 8);

        this.groupBox1.Name = "groupBox1";

        this.groupBox1.TabIndex = 7;

        this.groupBox1.TabStop = false;

        this.groupBox1.Text = "Key Monitor";

        // 

        // label1

        // 

        this.label1.Location = new System.Drawing.Point(16, 64);

        this.label1.Name = "label1";

        this.label1.Size = new System.Drawing.Size(168, 20);

        this.label1.TabIndex = 6;

        // 

        // groupBox2

        // 

        this.groupBox2.Controls.AddRange(new System.Windows.Forms.Control[] {

                                                                                this.textBox2,

                                                                                this.label2});

        this.groupBox2.Location = new System.Drawing.Point(8, 120);

        this.groupBox2.Name = "groupBox2";

        this.groupBox2.TabIndex = 8;

        this.groupBox2.TabStop = false;

        this.groupBox2.Text = "Keys Enumeration";

        // 

        // label2

        // 

        this.label2.Location = new System.Drawing.Point(16, 64);

        this.label2.Name = "label2";

        this.label2.Size = new System.Drawing.Size(168, 20);

        this.label2.TabIndex = 9;

        // 

        // Form1

        // 

        this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);

        this.ClientSize = new System.Drawing.Size(216, 229);

        this.Controls.AddRange(new System.Windows.Forms.Control[] {

                                                                      this.groupBox2,

                                                                      this.groupBox1});

        this.groupBox1.ResumeLayout(false);

        this.groupBox2.ResumeLayout(false);

        this.ResumeLayout(false);



    }

    [STAThread]

    static void Main() {

        Application.Run(new Form1());

    }



    private void textBox1_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e) {

        label1.Text = Convert.ToString(e.KeyValue);

    }



    private void textBox2_KeyDown(object sender, System.Windows.Forms.KeyEventArgs e) {

        if (e.Shift) Console.WriteLine("Shift, ");

        if (e.Alt) Console.WriteLine("Alt, ");

        if (e.Control) Console.WriteLine("Ctrl, ");



        if (e.KeyCode == Keys.W || e.KeyCode == Keys.R ) {

            Console.WriteLine("W R ");

        } else if (e.KeyCode == Keys.Escape && e.Modifiers == (Keys.Shift | Keys.Alt)) {

            Console.WriteLine("Escape");

        } else if (e.KeyCode == Keys.C && e.Modifiers == (Keys.Alt | Keys.Control)) {

            Console.WriteLine("s");

            textBox2.SelectedText = "";

            textBox2.SelectionLength = 0;

        } else {

            Console.WriteLine(Convert.ToString(e.KeyData));

        }

    }

}
TextBox.SelectionLength : TextBox « System.Windows.Forms « C# / C Sharp by API
