[28897] | 1 | // -----------------------------------------------------------------------
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| 2 | // <copyright file="InverseBooleanConverter.cs" company="Microsoft">
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| 3 | // Copyright (c) Microsoft Corporation. All rights reserved.
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| 4 | // </copyright>
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| 5 | // -----------------------------------------------------------------------
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| 6 |
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| 7 | namespace Microsoft.Samples.Kinect.WebserverBasics
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| 8 | {
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| 9 | using System;
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| 10 | using System.Windows.Data;
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| 11 |
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| 12 | /// <summary>
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| 13 | /// Converts a boolean value to its inverse.
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| 14 | /// </summary>
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| 15 | [ValueConversion(typeof(bool), typeof(bool))]
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| 16 | public class InverseBooleanConverter : IValueConverter
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| 17 | {
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| 18 | #region IValueConverter Members
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| 19 |
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| 20 | /// <summary>
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| 21 | /// Converts a value.
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| 22 | /// </summary>
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| 23 | /// <param name="value">
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| 24 | /// The value produced by the binding source.
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| 25 | /// </param>
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| 26 | /// <param name="targetType">
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| 27 | /// The type of the binding target property.
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| 28 | /// </param>
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| 29 | /// <param name="parameter">
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| 30 | /// The converter parameter to use.
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| 31 | /// </param>
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| 32 | /// <param name="culture">
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| 33 | /// The culture to use in the converter.
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| 34 | /// </param>
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| 35 | /// <returns>
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| 36 | /// A converted value. If the method returns null, the valid null value is used.
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| 37 | /// </returns>
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| 38 | public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
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| 39 | {
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| 40 | if (targetType != typeof(bool))
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| 41 | {
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| 42 | throw new InvalidOperationException("The target must be a boolean");
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| 43 | }
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| 44 |
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| 45 | return !(bool)value;
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| 46 | }
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| 47 |
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| 48 | /// <summary>
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| 49 | /// Converts a value.
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| 50 | /// </summary>
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| 51 | /// <param name="value">
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| 52 | /// The value that is produced by the binding target.
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| 53 | /// </param>
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| 54 | /// <param name="targetType">
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| 55 | /// The type to convert to.
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| 56 | /// </param>
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| 57 | /// <param name="parameter">
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| 58 | /// The converter parameter to use.
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| 59 | /// </param>
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| 60 | /// <param name="culture">
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| 61 | /// The culture to use in the converter.
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| 62 | /// </param>
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| 63 | /// <returns>
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| 64 | /// A converted value. If the method returns null, the valid null value is used.
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| 65 | /// </returns>
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| 66 | public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
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| 67 | {
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| 68 | if (targetType != typeof(bool))
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| 69 | {
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| 70 | throw new InvalidOperationException("The target must be a boolean");
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| 71 | }
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| 72 |
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| 73 | return !(bool)value;
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| 74 | }
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| 75 |
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| 76 | #endregion
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| 77 | }
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| 78 | }
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