C# DateTimePicker Control

The DateTimePicker control allows you to display and collect date and time from the user with a specified format.

C# datetimepicker

The DateTimePicker control has two parts, a label that displays the selected date and a popup calendar that allows users to select a new date. The most important property of the DateTimePicker is the Value property, which holds the selected date and time.

dateTimePicker1.Value = DateTime.Today;

The Value property contains the current date and time the control is set to. You can use the Text property or the appropriate member of Value to get the date and time value.

DateTime iDate; iDate = dateTimePicker1.Value;

The control can display one of several styles, depending on its property values. The values can be displayed in four formats, which are set by the Format property: Long, Short, Time, or Custom.

dateTimePicker1.Format = DateTimePickerFormat.Short;

Convert String to DateTime

You can use the methods like Convert.ToDateTime(String), DateTime.Parse() and DateTime.ParseExact() methods for converting a string-based date to a System.DateTime object. More about..... String to DateTime

How to find date difference ?

The DateTime.Substract method may be used in order to find the date-time difference between two instances of the DateTime method. More about..... Find date difference

How to to set datetime object to null ?

By default DateTime is not nullable because it is a Value Type, using the nullable operator introduced in C# 2, you can achieve this. More about..... Datetime object to null

The following C# program shows how to set and get the value of a DateTimePicker1 control.

Full Source C#
using System; using System.Drawing; using System.Windows.Forms; namespace WindowsFormsApplication1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { dateTimePicker1.Format = DateTimePickerFormat.Short; dateTimePicker1.Value = DateTime.Today; } private void button1_Click(object sender, EventArgs e) { DateTime iDate; iDate = dateTimePicker1.Value; MessageBox.Show("Selected date is " + iDate); } } }