The member “CurrentCulture” is not recognized or is not accessible

Question

I have a Window with the following namespace

xmlns:sysglb=\"clr-namespace:System.Globalization;assembly=mscorlib\"

that contains a textbox

Answer 1

Can't remember where I got this from but it works

using System.Globalization;
using System.Windows.Data;

namespace SomeNamespace
{
    /// <summary>
    /// This class is a fudge because
    /// 
    ///         xmlns:sysglb="clr-namespace:System.Globalization;assembly=mscorlib"
    ///         
    ///         <TextBox Grid.Row="2" Grid.Column="1" 
    ///              Text="{Binding Path=SelectedSupporterCategory.Price, Mode=TwoWay, StringFormat='C',
    ///              ConverterCulture={x:Static sysglb:CultureInfo.CurrentCulture}}" 
    ///              UseLayoutRounding="True" MaxWidth="100" HorizontalAlignment="Left" MinWidth="100" HorizontalContentAlignment="Right"/>
    /// 
    ///     is giving 
    ///             Error 29    "The member "CurrentCulture" is not recognized or is not accessible."
    /// 
    /// Instead we use
    /// 
    ///         <TextBox Grid.Row="2" Grid.Column="1" 
    ///              Text="{CultureAwareBinding Path=SelectedSupporterCategory.Price, Mode=TwoWay, StringFormat='C',}" 
    ///              UseLayoutRounding="True" MaxWidth="100" HorizontalAlignment="Left" MinWidth="100" HorizontalContentAlignment="Right"/>
    /// 
    /// </summary>
    public class CultureAwareBinding : Binding
    {
        public CultureAwareBinding()
        {
            ConverterCulture = CultureInfo.CurrentCulture;
        }
    }
}

Answer 2

Changing the project target framework to .NET Framework 4.6 or higher solves the issue.

Go to solution explorer and right-click on the affected Project -> Properties -> Application -> Target framework.

Answer 3

found similar suggestion in this topic: WPF StringFormat={0:C} showing as dollars

my application was working when I launched it and diplayed values with correct culture formatting, but designer could not find CultureInfo.CurrentUICulture and crashed

I used static property in helper class

public static class WpfHelpers
{
    public static CultureInfo CurrentCulture { get; set; }
}

and used it in bindings: ConverterCulture={x:Static helpers:WpfHelpers.CurrentCulture}

I set that property on Application startup

WpfHelpers.CurrentCulture =
Thread.CurrentThread.CurrentCulture =
Thread.CurrentThread.CurrentUICulture = new CultureInfo ...