Mega Code Archive

 
Categories / C# / GUI Windows Form
 

Scroll event

using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; public class Form1 : System.Windows.Forms.Form {     private System.Windows.Forms.TextBox textBox1;     private System.Windows.Forms.VScrollBar vScrollBar1;     int counter = 0;     private System.Windows.Forms.Label label1;     public Form1() {         this.textBox1 = new System.Windows.Forms.TextBox();         this.vScrollBar1 = new System.Windows.Forms.VScrollBar();         this.label1 = new System.Windows.Forms.Label();         this.SuspendLayout();         this.textBox1.Font = new System.Drawing.Font("Microsoft Sans Serif", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));         this.textBox1.ForeColor = System.Drawing.Color.Transparent;         this.textBox1.Location = new System.Drawing.Point(24, 56);         this.textBox1.Multiline = true;         this.textBox1.ReadOnly = true;         this.textBox1.Size = new System.Drawing.Size(144, 32);         this.textBox1.TextAlign = System.Windows.Forms.HorizontalAlignment.Center;         this.vScrollBar1.Location = new System.Drawing.Point(168, 56);         this.vScrollBar1.Size = new System.Drawing.Size(16, 32);         this.vScrollBar1.Scroll += new System.Windows.Forms.ScrollEventHandler(this.vScrollBar1_Scroll);         this.label1.Location = new System.Drawing.Point(8, 16);         this.label1.Size = new System.Drawing.Size(192, 16);         this.label1.Text = "Numeric Scolling using VScroll Bars";         this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);         this.ClientSize = new System.Drawing.Size(208, 109);         this.Controls.AddRange(new System.Windows.Forms.Control[] {                                       this.label1,                                       this.vScrollBar1,                                       this.textBox1});         this.Text = "Numeric Scroll";         this.Load += new System.EventHandler(this.Form1_Load);         this.ResumeLayout(false);     }     [STAThread]     static void Main() {         Application.Run(new Form1());     }     private void textBox1_TextChanged(object sender, System.EventArgs e) {     }     private void Form1_Load(object sender, System.EventArgs e) {         vScrollBar1.Maximum = 100;         vScrollBar1.Minimum = 0;         vScrollBar1.SmallChange = 1;     }     private void vScrollBar1_Scroll(object sender, System.Windows.Forms.ScrollEventArgs e) {         if (e.Type == ScrollEventType.Last)             counter = 100;         if (e.Type == ScrollEventType.First)             counter = 0;         if (e.Type == ScrollEventType.SmallDecrement)             counter--;         if (e.Type == ScrollEventType.SmallIncrement) {             counter++;         }          if (e.Type == ScrollEventType.LargeDecrement)             counter -= 5;         if (e.Type == ScrollEventType.LargeIncrement) {             counter += 5;         }          if (e.Type == ScrollEventType.First)             counter = 0;         if (e.Type == ScrollEventType.Last)             counter = 100;         Console.WriteLine(e.NewValue + "\n");         if (counter > 100) counter = 100;         if (counter < 0) counter = 0;         Console.WriteLine(counter.ToString());     } }