Keyboard event and TextBox : TextBox : GUI Windows Form C# Source Code


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Keyboard event and TextBox








    
 
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));
        }
    }
}

 
    
   
  
   







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