How to press enter button in winium

I'm trying to automate the test of winform application, but i have small problem. I can't press enter button on textbox. So what i tried to do:

Actions act = new Actions(driver);
act.SendKeys(Keys.Enter).Perform(); 

Also i tried to insert the enter btn to my textbox,but this action simply delete my data in textbox.

I should write name and then press enter to make the textbox work, but i don't know how else i can press it because there is no tutorials about winium. Thanks in advance for any help!