Arrays are variables that can store more than one value of the same data type.
In example 1 below we declare and create an array ‘myArray’ that will hold string values. Our array specifies 3 as the highest element (or upper bound as it's called) of our array.
The first element or lower bound in our array has a starting index of 0, so our example array has 4 elements. The first element holds the value ‘BMW’ and so on.
Example 1
Dim myArray(3) As String
myArray(0) = "BMW"
myArray(1) = "Mercedes"
myArray(2) = "Honda"
myArray(3) = "Porshe"
Example 2 creates an array of integers. Like the example above the array has 4 elements, with a starting index of 0 and ending index of 3.
Example 2
Dim myArray(4) As Integer
myArray(0) = "2"
myArray(1) = "55"
myArray(2) = "33"
myArray(3) = "55656"
In our first examples we specified the number of array elements by declaring the highest/last element or upper bound of the array.
We could also create an array without specifying a number of elements, and then set the initial values for each item of the array.
Our example below declares a string array, and the 4 elements and their values are provided enclosed in the {} braces, with a comma as a separator.
Dim myArray() As String
myArray = New String(){“BMW”,”Mercedes”,”Honda”,”Porshe”}
Or we could shorten it like this:
Dim myArray() As String = {“BMW”,”Mercedes”,”Honda”,”Porshe”}
In Part 1 learn the basics of Arrays in ASP.NET
In Part 2 learn how to Reference an Array Element
In Part 3 learn how to Loop through an array in ASP.NET and VB.NET
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