ref parameter

Question

I have a void: private void teste( ref ControlCollection controles) { } when i use the void: teste( ref this .Page.Controls); it returns the error to follow Error 14 A property or indexer may not be passed as an out or ref parameter thanks!

Thiago Prohaska · Answer

thanks it's solve

Thiago Prohaska · Answer

but thus when I to modify a control it will be modified in the page? example: if I to modify label1.text ...

Alan · Answer

This is because a property or indexer doesn't actually represent a memory location which you need if it is to be used as a ref or out parameter. As a workaround cache it in a variable first: ControlCollection cc = this.Page.Controls; teste(ref cc);