@page "/"
<div style="margin-left: 30px">
<RadioGroup GroupName="osType" @bind-Value="OsType">
<ul>
<li><Radio Value="Windows" /> win</li>
<li><Radio Value="Linux" /> linux</li>
<li><Radio Value="Mac" /> mac</li>
<li><Radio Value="Android" Disabled="true" /> android </li>
</ul>
</RadioGroup>
</div>
selected: @OsType
@code {
public string OsType {get; set;}
}