Working with Forms and Controls in VB.NET DateTimePicker Control

The DateTimePicker Control in VB.NET allows the user to select a date and time from a graphical calendar or set the value by entering it directly. It is a powerful control that is widely used in many applications.

Syntax

The DateTimePicker Control can be added to a VB.NET form by either dragging the control from the Toolbox to the form or by writing code to create the control dynamically. Here is an example of the code used to create the control dynamically:

Dim dateTimePicker1 As New DateTimePicker
With dateTimePicker1
    .Location = New Point(50, 50)
    .Size = New Size(200, 50)
    .Value = Now
End With
Me.Controls.Add(dateTimePicker1)

Example

Here is an example of how to use the DateTimePicker Control in VB.NET:

Private Sub DateTimePicker1_ValueChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DateTimePicker1.ValueChanged
    TextBox1.Text = DateTimePicker1.Value.ToShortDateString()
End Sub

In the above example, the ValueChanged event of the DateTimePicker Control is handled by setting the Text property of a TextBox Control to the selected date using the ToShortDateString() method.

Output

The output of the above program will be a TextBox control that displays the selected date in short date format whenever the user selects a new date using the DateTimePicker Control.

Explanation

When the user selects a new date using the DateTimePicker Control, the ValueChanged event is raised. The event handler code sets the Text property of a TextBox Control to the selected date using the ToShortDateString() method.

Use

The DateTimePicker Control is often used in date and time selection scenarios. It is commonly used in applications that require the user to select a specific date or time, and it can be configured to allow the selection of a range of dates or times.

Some examples of applications that use the DateTimePicker Control include:

• Financial applications for selecting and scheduling payments or investments.
• Healthcare applications for tracking patient appointments and medical history.
• Event management applications for scheduling events and venue bookings.

Important Points

• The DateTimePicker Control can be added to a VB.NET form by dragging and dropping it from the Toolbox or by creating it dynamically using code.
• The ValueChanged event of the DateTimePicker Control is used to handle changes in the selected date or time.
• The DateTimePicker Control can be configured to allow the selection of a range of dates or times.
• The DateTimePicker Control is commonly used in financial, healthcare, and event management applications.

Summary

In summary, the DateTimePicker Control in VB.NET is a powerful control that allows the user to select a specific date or time from a graphical calendar or by entering it directly. It is commonly used in applications that require the selection or scheduling of dates and times, and it can be configured to allow the selection of a range of dates or times.