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// --------------------------------------------------------------------------------------------------------------------
// <copyright file="StringToIntConverter.cs" company="Catel development team">
// Copyright (c) 2008 - 2011 Catel development team. All rights reserved.
// </copyright>
// <summary>
// Convert string value to int
// </summary>
// --------------------------------------------------------------------------------------------------------------------
using System;
using System.Windows.Data;
namespace Catel.Windows.Data.Converters
{
/// <summary>
/// Convert string value to int
/// </summary>
/// <remarks></remarks>
#if !SILVERLIGHT
[ValueConversion(typeof(string), typeof(int?))]
#endif
public class StringToIntConverter : IValueConverter
{
/// <summary>
/// Convert a string to int value.
/// </summary>
/// <param name="value">string are supported.</param>
/// <param name="targetType">Only int? is supported.</param>
/// <param name="parameter">Not supported.</param>
/// <param name="culture">Not supported.</param>
/// <returns>When value is not an int the targetValue will be null on construction.</returns>
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
return value != null ? value.ToString() : String.Empty;
}
/// <summary>
/// This method isn't supported.
/// </summary>
/// <param name="value">Not used.</param>
/// <param name="targetType">Not used.</param>
/// <param name="parameter">Not used.</param>
/// <param name="culture">Not used.</param>
/// <returns>Always null.</returns>
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
int tmp = 0;
int? result = null;
if (int.TryParse(value as string, out tmp))
{
result = tmp;
}
return result;
}
}
}
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