There is a single assignment operator in VB.
Dim value = 5Notes
Watch out for assignment vs. equality comparison.
Dim result = leftValue = rightValue
In this example you can see the equal sign being used as both a comparison operator and an assignment operator, unlike other languages. In this case, result will be of type Boolean and will contain the value of the equality comparison between leftValue and rightValue.
Related: Using Option Strict On to declare variables properly