DateTimePicker Value changed event (Selected event) : DateTimePicker : GUI Windows Form C# Source Code

    


using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

public class Form1 : Form
{
    private System.Windows.Forms.DateTimePicker dateTimePickerDropOff;
    private System.Windows.Forms.Label outputLabel;
    private System.Windows.Forms.Label deliveryLabel;
    private System.Windows.Forms.Label dropOffLabel;
    public Form1() {
        InitializeComponent();
        dateTimePickerDropOff.MinDate = DateTime.Today;
        dateTimePickerDropOff.MaxDate = DateTime.Today.AddYears( 1 );
  }

   private void dateTimePickerDropOff_ValueChanged( object sender, EventArgs e )
   {
      DateTime dropOffDate = dateTimePickerDropOff.Value;

      if ( dropOffDate.DayOfWeek == DayOfWeek.Friday ||
         dropOffDate.DayOfWeek == DayOfWeek.Saturday ||
         dropOffDate.DayOfWeek == DayOfWeek.Sunday )

         outputLabel.Text = dropOffDate.AddDays( 3 ).ToLongDateString();
      else
         outputLabel.Text = dropOffDate.AddDays( 2 ).ToLongDateString();
   }

   private void InitializeComponent()
   {
      this.dateTimePickerDropOff = new System.Windows.Forms.DateTimePicker();
      this.outputLabel = new System.Windows.Forms.Label();
      this.deliveryLabel = new System.Windows.Forms.Label();
      this.dropOffLabel = new System.Windows.Forms.Label();
      this.SuspendLayout();
      // 
      // dateTimePickerDropOff
      // 
      this.dateTimePickerDropOff.Location = new System.Drawing.Point(31, 39);
      this.dateTimePickerDropOff.Name = "dateTimePickerDropOff";
      this.dateTimePickerDropOff.Size = new System.Drawing.Size(200, 20);
      this.dateTimePickerDropOff.TabIndex = 0;
      this.dateTimePickerDropOff.ValueChanged += new System.EventHandler(this.dateTimePickerDropOff_ValueChanged);
      // 
      // outputLabel
      // 
      this.outputLabel.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
      this.outputLabel.Location = new System.Drawing.Point(31, 108);
      this.outputLabel.Name = "outputLabel";
      this.outputLabel.Size = new System.Drawing.Size(200, 23);
      this.outputLabel.TabIndex = 1;
      // 
      // deliveryLabel
      // 
      this.deliveryLabel.AutoSize = true;
      this.deliveryLabel.Location = new System.Drawing.Point(30, 95);
      this.deliveryLabel.Name = "deliveryLabel";
      this.deliveryLabel.Size = new System.Drawing.Size(119, 13);
      this.deliveryLabel.TabIndex = 2;
      // 
      // dropOffLabel
      // 
      this.dropOffLabel.AutoSize = true;
      this.dropOffLabel.Location = new System.Drawing.Point(30, 23);
      this.dropOffLabel.Name = "dropOffLabel";
      this.dropOffLabel.Size = new System.Drawing.Size(72, 13);
      this.dropOffLabel.TabIndex = 3;
      this.dropOffLabel.Text = "Drop Off Date:";
      // 
      // DateTimePickerForm
      // 
      this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
      this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
      this.ClientSize = new System.Drawing.Size(262, 235);
      this.Controls.Add(this.dropOffLabel);
      this.Controls.Add(this.deliveryLabel);
      this.Controls.Add(this.outputLabel);
      this.Controls.Add(this.dateTimePickerDropOff);
      this.Name = "DateTimePickerForm";
      this.Text = "DateTimePickerTest";
      this.ResumeLayout(false);
      this.PerformLayout();
 
    }
   [STAThread]
   static void Main()
  {
    Application.EnableVisualStyles();
    Application.Run(new Form1());
  }

}