Converting a string to an integer is a common programming task. In Visual Basic .NET, this can be done using the CInt function. Here is an example of how to use it:
Dim strNum as String = "42"
Dim intNum as Integer = CInt(strNum)
In the example above, we declare a variable strNum and assign it the value "42". We then declare another variable intNum and use the CInt function to convert the string value into an integer value.
If the string cannot be converted to an integer, a runtime error will occur. For example:
Dim strNum as String = "hello"
Dim intNum as Integer = CInt(strNum)
The code above will result in a runtime error since "hello" cannot be converted to an integer.
Another way to convert a string to an integer is to use the Integer.Parse method. Here's an example:
Dim strNum as String = "42"
Dim intNum as Integer = Integer.Parse(strNum)
Both methods are valid, but it is important to note that CInt is a function while Integer.Parse is a method.