winForm ise Button.Visible
false
set ederek yapabilirsin.
KaybolButton.Visible = false
wpf vb birşey ise IsVisible false set edebilirsin veya triggerlardan yardım alabilirsin
<Button Text="Tikla bana">
<Button.Style>
<Style TargetType="Button">
<Setter Property="IsVisible" Value="False"/>
<Style.Triggers>
<DataTrigger TargetType="Button" Binding="{Binding Goster}" Value="true">
<Setter Property="IsVisible" Value="True"/>
</DataTrigger>
</Style.Triggers>
</Style>
</Button.Style>
<Button>
yada
converter kullanabilirsin
https://learn.microsoft.com/en-us/dotnet/api/system.windows.data.ivalueconverter?view=windowsd