ComboBox Control in VB.net – Properties, Methods and Events

What is ComboBox Control in VB.net?

The ComboBox Control in VB.net is used to show multiple options in a drop-down menu.

It combines a listbox and a textbox, and the user can enter only one item.

A user may also choose an item from a drop-down list using this feature.

Let’s create a combo box by dragging a ComboBox Control from the Toolbox and dropping it on the form.

You can populate the list box items either from the properties window or at runtime.

To add items to a ComboBox, select the ComboBox control and go to the properties window for the properties of this control.

Click the ellipses (…) button next to the Items property. This opens the String Collection Editor dialog box, where you can enter the values one at a line.

Properties of the ComboBox Control in VB.net

The following are some commonly used Properties of the ComboBox Control in VB.net.

Methods of the ComboBox Control in VB.net

The following are some of the commonly used Methods of ComboBox Control in VB.net.

Events of the ComboBox Control in VB.net

The following are some of the commonly used Events of the ComboBox Control in VB.net.

Let’s create a program to display the Calendar in the VB.NET Windows Form.

Public Class Form1
    Dim DT As String
    Dim MM As String
    Dim YY As Integer
    Private Sub Button1_Click(sender As Object, e As EventArgs)

    End Sub

    Private Sub Button1_Click_1(sender As Object, e As EventArgs)

    End Sub

    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
        cb1.Items.Add("Date")
        cb1.Items.Add("1")
        cb1.Items.Add("2")
        cb1.Items.Add("3")
        cb1.Items.Add("4")
        cb1.Items.Add("5")
        cb1.Items.Add("6")
        cb1.Items.Add("7")
        cb1.Items.Add("8")
        cb1.Items.Add("9")
        cb2.Items.Add("Month")
        cb2.Items.Add("January")
        cb2.Items.Add("February")
        cb2.Items.Add("March")
        cb2.Items.Add("May")
        cb2.Items.Add("June")
        cb2.Items.Add("July")
        cb3.Items.Add("Year")
        cb3.Items.Add("2022")
        cb3.Items.Add("2023")
        cb3.Items.Add("2024")
        cb3.Items.Add("2025")
        cb3.Items.Add("2026")
    End Sub

    Private Sub Button1_Click_2(sender As Object, e As EventArgs) Handles Button1.Click
        DT = cb1.Text
        MM = cb2.Text
        YY = cb3.Text
        MsgBox("Month: " & MM + vbCrLf + "Day: " & DT + vbCrLf + "Year: " & YY)
    End Sub
End Class

Program Output:

Now select the day, month, and year from the dropdown box and then click on the Get Date button to display the date in the form.

Summary

In this tutorial, we’ve discussed Combo Box Control in VB.net using Microsoft Visual Studio.

A ComboBox is created by dragging it from the toolbox and dropping it into the form.

It provides us with a way of presenting numerous options to the user. We can set the default item to be selected on the ComboBox when the form is loaded.

The SelectedIndexChanged event helps us specify the action to take when a particular item is selected on the Combo Box.

Related Articles

• Form Controls in VB.net – Windows Form Controls in VB.net
• Basic Controls in VB.net – What are the Basic Controls in VB.net
• Button Control in VB.net – Windows Form Button Control in VB.net
• Label Control in VB.net – What is Label Control in VB.net
• TextBox Control in VB.net – Properties, Method and Events of the TextBox

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