textbox visibility/collapsed in silverlight mvvm - silverlight

Question

I Silverlight5 with mvvm pattern i have one doubt.
In xaml i have used one textblock and i bind some id in it.
If the textblock content value is 1 or 2 means
yet another textbox is visible or else that is collapsed.. how to acheive that..
my code:
<TextBlock Name="textBlock1" Text="{Binding id}" Loaded="textBlock1_Loaded" Visibility="Collapsed" />
<TextBox Text="{Binding name,Mode=TwoWay}" x:Name="t1" Visibility="{Binding IsVisible,Converter={StaticResource visibilityconverter}}" />
in view model i had created the property for id and raised the event and bind the value to textblock.
to convert the value to visible i have a visibilityconverter class in one separate folder named "Converters"
public class visibilityconverter:IValueConverter
{
public object Convert(object value, Type targetType,
object parameter, CultureInfo culture)
{
if (id==1 && id==2)
{
return Visibility.Visible;
}
return Visibility.Collapsed;
}
public object ConvertBack(object value, Type targetType,
object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
in the above visibleconverter class how i cna get the id value from viewmodel and check it..
If i got the value from viewmodel to visibilityconverter means i will proceed further.
tell me if u can..!

Answer 1

Hi i have found the solution..
In xaml give the following:
<TextBox Text="{Binding name,Mode=TwoWay}" x:Name="t1" Visibility="{Binding id,Converter={StaticResource visibilityconverter}}" />
In visibilityConverter class:
public class visibilityconverter:IValueConverter
{
public object Convert(object value, Type targetType,
object parameter, CultureInfo culture)
{
string v = value.ToString();
if (v =="1" || v=="2")
{
return Visibility.Visible;
}
return Visibility.Collapsed;
}
public object ConvertBack(object value, Type targetType,
object parameter, CultureInfo culture)
{
throw new NotImplementedException();
}
}
Problem Solved... !