How do you pass values between forms in C #?

1. When you customize the form, add the appropriate properties for the form, such as:
Class myform:form{
....
private string something;
public string Something{get{return Something;} Set{something=value;}}
}
By passing a value similar to this property: Form1. Something=xxx

2, the other is to create a middleware to store data, such as the creation of a record class:
Class record{
public static string Something;
}
Two forms cross-pass values when setting and calling values through Record.something:
For example, call record.something= "Something" in Form1 to set the value to pass, call in Form2
Xxx=record.something to receive the value that came

How do you pass values between forms in C #?