Working with Data Structures in VB.NET List

In VB.NET, a List is a common data structure used to store a collection of values. In this page, we will discuss how to work with data structures in VB.NET List.

Syntax

Here is the syntax to create a new List:

Dim listName As New List(Of DataType)

Here is the syntax to add an item to a List:

listName.Add(item)

Here is the syntax to retrieve an item from a List:

listName(index)

Here is the syntax to remove an item from a List:

listName.RemoveAt(index)

Example

Here's an example of creating a List and performing operations on it:

Dim myList As New List(Of Integer)

' Adding items to the list
myList.Add(10)
myList.Add(20)
myList.Add(30)

' Retrieving items from the list
Dim firstItem = myList(0) ' firstItem will be 10

' Removing an item from the list
myList.RemoveAt(1) ' list now contains 10 and 30

Output

The output of the above code will be:

10

Explanation

In the above example, we first created a new instance of the List class with the data type we want to store, which is Integer. We then added three values to the list using the Add method. We then retrieved the first item in the list by indexing the list with the number 0. Finally, we removed the second item from the list using the RemoveAt method.

Use

Lists are useful data structures for storing collections of values that may change in size and content over time. They provide a way to access and modify items in the collection using the familiar array-like syntax.

Important Points

• Lists are a common data structure used to store a collection of values.
• Items can be added to a List using the Add method.
• Items can be retrieved from a List using indexing.
• Items can be removed from a List using the RemoveAt method.

Summary

In this page, we discussed how to work with data structures in VB.NET List. We covered the syntax, example, output, explanation, use, important points, and summary of using Lists in VB.NET. Lists provide a simple and flexible data structure for storing and manipulating collections of values in VB.NET.