问题:

I have problem with RadioButton in xamarin. I would like to make my RadioButtons visible but I don't know how to do this. My RadioButtons are invisible in my xml file. I would like to make them visible from code. I need this because I want to make a list of the last logon users and when I choose one he fill my boxes. But on start I dont have 3 users but only 1 so I need to hide not used RadioButtons. So how can I change property of my RadioButtons?

回答1:

To make a radio button visible:

radioButton.setVisibility(View.VISIBLE);

To make a radio button invisible:

radioButton.setVisibility(View.GONE);

This works fine presuming you have correctly initialized radioButton in Activity.

For Xamarin.Android C# try this:

button.Visibility = ViewStates.Invisible;

Reference link 1 and Reference link 2

回答2:

Try this code:

RadioButton rb = (RadioButton) findViewById(R.id.firstRadio);
rb.setVisibility(View.VISIBLE);

回答3:

This is kind of a pain sometimes, because sometimes you have to dig a little bit deaper, since it does not always work 100%, but the Basic in Xamarin/C# to use is as follow:

rb.Visibility=ViewStates.Visible;