When and where to use GetType() or typeof()?
.net, c#, gettype, typeof, types
Solution
`typeof` is an operator to obtain a type known at compile-time (or at least a generic type parameter). The operand of `typeof` is always the name of a type or type parameter - never an expression with a value (e.g. a variable). See the C# language specification for more details.
`GetType()` is a method you call on individual objects, to get the execution-time type of the object.
Note that unless you only want exactly instances of `TextBox` (rather than instances of subclasses) you'd usually use:
if (myControl is TextBox)
{
// Whatever
}
Or
TextBox tb = myControl as TextBox;
if (tb != null)
{
// Use tb
}
Problem
Why this works ``` if (mycontrol.GetType() == typeof(TextBox)) {} ``` and this do not? ``` Type tp = typeof(mycontrol); ``` But this works ``` Type tp = mycontrol.GetType(); ``` I myself use `is` operator for checking type but my understanding fails when I use `typeof()` and `GetType()` Where and when to use `GetType()` or `typeof()`?