How to Create an AutoComplete in ComboBox in VB.Net and MySQL

How to Create an AutoComplete in ComboBox in VB.Net and MySQL

This tutorial is all about How to Create an AutoComplete in the ComboBox in VB.Net and MySQL Database. In this tutorial, I will teach you how to create an autocomplete combo box in vb.net and MySQL database. The function of this is, when you type the first record in the Combobox, it will automatically suggest and append. That you don’t have to click anymore the dropdown and scroll down the list of records that you’re going to select.

What is Visual Basic’s purpose?

The third-generation programming language was created to aid developers in the creation of Windows applications. It has a programming environment that allows programmers to write code in.exe or executable files. They can also utilize it to create in-house front-end solutions for interacting with huge databases. Because the language allows for continuing changes, you can keep coding and revising your work as needed.

However, there are some limits to the Microsoft Visual Basic download. If you want to make applications that take a long time to process, this software isn’t for you. That implies you won’t be able to use VB to create games or large apps because the system’s graphic interface requires a lot of memory and space. Furthermore, the language is limited to Microsoft and does not support other operating systems.

What are the most important characteristics of Visual Basic?

Microsoft Visual Basic for Applications Download, unlike other programming languages, allows for speedier app creation. It has string processing capabilities and is compatible with C++, MFC, and F#. Multi-targeting and the Windows Presentation Framework are also supported by the system, allowing developers to create a variety of Windows apps, desktop tools, metro-style programs, and hardware drivers.

So, Let’s Begin:

Open the Visual Basic and Create a new Windows Form Application. Then, set the Form just like this.

After setting up the Form, double click it and set the connection of MySQL Database to Visual Basic. After that, declare all the classes that are needed above the Form1_Load.

'SET THE CONNECTION MYSQL DATABASE TO VISUAL BASIC.
Dim con As MySqlConnection = New MySqlConnection("server=localhost; user id=root; password=; database=dbmember")
'A SET OF COMMAND IN MYSQL
Dim cmd As New MySqlCommand
'SET A CLASS THAT SERVE THE BRIDGE BETWEEN A DATASET AND DATABASE FOR SAVING AND RETRIEVING DATA.
Dim da As New MySqlDataAdapter
'SET A CLASS THAT CONSIST A COMPLETE SET OF DATA
Dim ds As New DataSet

In the Form1_Load, set up a method for filling data in the ComboBox.

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'OPENING THE CONNECTION
con.Open()
'SET A QUERY FOR RETRIEVING DATA
Dim sqlquery As String = "select * from member"
'IT HOLDS THE DATA TO BE EXECUTED
With cmd
.Connection = con
.CommandText = sqlquery
End With
'FILLING THE DATA IN THE TABLE
da.SelectCommand = cmd
ds = New DataSet
da.Fill(ds, "member")
'GETTING THE DATASOURCE OF THE COMBOBOX
ComboBox1.DataSource = ds.Tables(0)
'SET THE FIELD IN THE TABLE TO BE DISPLAY IN THE COMBOBOX
ComboBox1.DisplayMember = "name"
'CLOSING THE CONNECTION
con.Close()
da.Dispose()
End Sub

After that, go back to the Form Design. Click the ComboBox and go the the Properties. In the properties, hit the “AutoCompleteMode” and select “SuggestAppend”. Then, hit again the “AutoCompleteSource” and select “ListItems”.

Now, press F5 on the keyboard to run your project.

You can download the complete source code of AutoComplete in the ComboBox in VB.Net and MySQL Database. Just click the code file.

The database of the project is in here

DOWNLOAD HERE

Readers might read also:

• How to Load Data from MySQL to ComboBox
• How to Fill Data in the ComboBox in VB.net
• How to Update Data Using VB.Net and MySQL Database