Question

I have a property like this (I don’t want it to be nullable like int?)

public int id{get;set;}

I have a TextBox that binded to id property

<TextBox  Text="{Binding id}"/>

When my windows loaded my TextBox has a value as 0,how can i hide id default value from my TextBox

Answer 1

You could use a binding converter like this:

[ValueConversion(typeof(int), typeof(string))]
public class IntegerConverter : IValueConverter
{
    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
    {
        int intValue = (int)value;
        return intValue != 0 ? intValue.ToString() : string.Empty;
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        int intValue = 0;
        int.TryParse((string)value, out intValue);
        return intValue;
    }
}