Does not exist in namespace

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I have the following code in App.xaml:

HTML

<Application x:Class="eesPhotography.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:u="clr-namespace:eesUtilities"
             xmlns:local="clr-namespace:eesPhotography"
             StartupUri="MainWindow.xaml">
    <Application.Resources>
       
        <u:DateConverter x:Key="DateConverter"/>

When I typed in u: intellisense displayed DateConverter, which I selected and then completed the code. However, it's displaying a message:

The name DateConverter does not exist in the namespace 'clr-namespace:Utilities'

What am I doing wrong?

Posted 14-Oct-15 5:21am

Robert Kamarowski

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Comments

Richard Deeming 14-Oct-15 11:35am

Is there a class called DateConverter in the namespace eesUtilities defined in the current project? Or is it defined in a different assembly?

Maciej Los 14-Oct-15 12:28pm

Robert, you have to provide more details about your issue. Did you download specific example from this site? Is it a MSDN example or something?

Robert Kamarowski 14-Oct-15 13:30pm

DateConverter is defined in the current project. Code follows:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Globalization;

namespace eesUtilities
{
internal class DateConverter : IValueConverter
{
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
if (value != null)
return ((DateTime)value).ToShortDateString();
return String.Empty;
}

public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
{
string strValue = value.ToString();
DateTime resultDateTime;
return DateTime.TryParse(strValue, out resultDateTime) ? resultDateTime : value;
}
}
}

I want to use this DateConverter for a DatePicker control. I thought this was how I made it available.

Richard Deeming 14-Oct-15 17:22pm

If it's in the same project, and it's a standard WPF application, then it should be OK.

Are you getting the error at runtime, compile-time, or in the designer? If it's in the designer, try compiling your project to see if it resolves the error.

You might also want to try making the class public instead of internal.

Robert Kamarowski 15-Oct-15 13:08pm

Thank you Richard. Leaving for vacation, so I'll try it when I return.

Robert Kamarowski 25-Oct-15 10:32am

The error shows up at design time. It's underlined, and hovering the cursor displays the message. Changing the class to 'public' no effect.

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