Csharp/C Sharp/GUI Windows Form/DateTimePicker

DateTimePicker Format: Short, Time, default and Custom Format

using System;
using System.Collections.Generic;
using System.ruponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
public class Form1 : Form
{
  private System.Windows.Forms.DateTimePicker dateTimePicker1;
  private System.Windows.Forms.Label label1;
  private System.Windows.Forms.Label label2;
  private System.Windows.Forms.Label label3;
  private System.Windows.Forms.Label label4;
  private System.Windows.Forms.DateTimePicker dateTimePicker2;
  private System.Windows.Forms.DateTimePicker dateTimePicker3;
  private System.Windows.Forms.DateTimePicker dateTimePicker4;
  public Form1() {
        InitializeComponent();
  }
  private void InitializeComponent()
  {
    this.dateTimePicker1 = new System.Windows.Forms.DateTimePicker();
    this.label1 = new System.Windows.Forms.Label();
    this.label2 = new System.Windows.Forms.Label();
    this.label3 = new System.Windows.Forms.Label();
    this.label4 = new System.Windows.Forms.Label();
    this.dateTimePicker2 = new System.Windows.Forms.DateTimePicker();
    this.dateTimePicker3 = new System.Windows.Forms.DateTimePicker();
    this.dateTimePicker4 = new System.Windows.Forms.DateTimePicker();
    this.SuspendLayout();
    // 
    // dateTimePicker1
    // 
    this.dateTimePicker1.Location = new System.Drawing.Point(92, 15);
    this.dateTimePicker1.Name = "dateTimePicker1";
    this.dateTimePicker1.Size = new System.Drawing.Size(200, 21);
    this.dateTimePicker1.TabIndex = 0;
    // 
    // label1
    // 
    this.label1.AutoSize = true;
    this.label1.Location = new System.Drawing.Point(12, 19);
    this.label1.Name = "label1";
    this.label1.Size = new System.Drawing.Size(30, 13);
    this.label1.TabIndex = 2;
    this.label1.Text = "Long:";
    // 
    // label2
    // 
    this.label2.AutoSize = true;
    this.label2.Location = new System.Drawing.Point(12, 54);
    this.label2.Name = "label2";
    this.label2.Size = new System.Drawing.Size(33, 13);
    this.label2.TabIndex = 3;
    this.label2.Text = "Short:";
    // 
    // label3
    // 
    this.label3.AutoSize = true;
    this.label3.Location = new System.Drawing.Point(12, 92);
    this.label3.Name = "label3";
    this.label3.Size = new System.Drawing.Size(29, 13);
    this.label3.TabIndex = 4;
    this.label3.Text = "Time:";
    // 
    // label4
    // 
    this.label4.AutoSize = true;
    this.label4.Location = new System.Drawing.Point(12, 128);
    this.label4.Name = "label4";
    this.label4.Size = new System.Drawing.Size(64, 13);
    this.label4.TabIndex = 5;
    this.label4.Text = "Custom ISO:";
    // 
    // dateTimePicker2
    // 
    this.dateTimePicker2.Format = System.Windows.Forms.DateTimePickerFormat.Short;
    this.dateTimePicker2.Location = new System.Drawing.Point(92, 50);
    this.dateTimePicker2.Name = "dateTimePicker2";
    this.dateTimePicker2.Size = new System.Drawing.Size(200, 21);
    this.dateTimePicker2.TabIndex = 6;
    // 
    // dateTimePicker3
    // 
    this.dateTimePicker3.Format = System.Windows.Forms.DateTimePickerFormat.Time;
    this.dateTimePicker3.Location = new System.Drawing.Point(92, 88);
    this.dateTimePicker3.Name = "dateTimePicker3";
    this.dateTimePicker3.Size = new System.Drawing.Size(200, 21);
    this.dateTimePicker3.TabIndex = 7;
    // 
    // dateTimePicker4
    // 
    this.dateTimePicker4.CustomFormat = "yyyy-mm-dd";
    this.dateTimePicker4.Format = System.Windows.Forms.DateTimePickerFormat.Custom;
    this.dateTimePicker4.Location = new System.Drawing.Point(92, 124);
    this.dateTimePicker4.Name = "dateTimePicker4";
    this.dateTimePicker4.Size = new System.Drawing.Size(200, 21);
    this.dateTimePicker4.TabIndex = 8;
    // 
    // Form1
    // 
    this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
    this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
    this.ClientSize = new System.Drawing.Size(348, 192);
    this.Controls.Add(this.dateTimePicker4);
    this.Controls.Add(this.dateTimePicker3);
    this.Controls.Add(this.dateTimePicker2);
    this.Controls.Add(this.label4);
    this.Controls.Add(this.label3);
    this.Controls.Add(this.label2);
    this.Controls.Add(this.label1);
    this.Controls.Add(this.dateTimePicker1);
    this.Font = new System.Drawing.Font("Tahoma", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
    this.Name = "Form1";
    this.Text = "Date Controls";
    this.ResumeLayout(false);
    this.PerformLayout();
  }
  [STAThread]
  static void Main()
  {
    Application.EnableVisualStyles();
    Application.Run(new Form1());
  }
}

DateTimePicker Value changed event (Selected event)

using System;
using System.Collections.Generic;
using System.ruponentModel;
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());
  }
}

Set DateTimePicker Min Date and Max Date

using System;
using System.Collections.Generic;
using System.ruponentModel;
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());
  }
}