Replace in Visual Basic .NET

In Visual Basic .NET, you can replace a substring within a string by using the Replace method. The Replace method takes two arguments: the original string and the replacement string.

Here's an example:

``vb.net
Dim myString As String = "The quick brown fox jumps over the lazy dog."
Dim newString As String = myString.Replace("fox", "cat")


In this example, the Replace method replaces the word "fox" with "cat" in the myString variable and assigns the updated string to the newString variable. The output will be:

The quick brown cat jumps over the lazy dog.
You can also use the Replace method to replace multiple occurrences of a substring within a string by using the optional count parameter. This parameter specifies the maximum number of replacements to make. Here's an example:

In this example, the Replace method replaces the first two occurrences of the letter "o" with "0" in the myString variable and assigns the updated string to the newString variable. The output will be:

The quick br0wn f0x jumps over the lazy dog.
Note that the Replace method is case-sensitive, meaning that it will only replace substrings that match exactly. If you want to perform a case-insensitive replace, you can use the StringComparison enumeration. Here's an example:

In this example, the Replace method replaces the word "the" with "a" in the myString variable in a case-insensitive manner and assigns the updated string to the newString` variable. The output will be:

A quick brown fox jumps over a lazy dog.