# RadioButton ### Group Name * The Group Name binds different radio buttons controls. All radio buttons with the same group name will interact. E.G. switching one on will switch others of the same group off. ### Unique Value * Each radio button within a group must have a unique value. ### Default setting for button group * One button within a group can be marked as the default value. This will set the button initially to on. ### Example *We could define radio buttons for colors. The group name could be "color" and we can set up different buttons with unique values like "red", "blue", "green", ...* --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://brixxbox.gitbook.io/brixxbox-documentation/client-api-reference/controls/radiobutton.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.