84 lines
3.4 KiB
C#
84 lines
3.4 KiB
C#
/*************************************************************************************
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Extended WPF Toolkit
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Copyright (C) 2007-2013 Xceed Software Inc.
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This program is provided to you under the terms of the Microsoft Public
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License (Ms-PL) as published at http://wpftoolkit.codeplex.com/license
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For more features, controls, and fast professional support,
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pick up the Plus Edition at http://xceed.com/wpf_toolkit
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Stay informed: follow @datagrid on Twitter or Like http://facebook.com/datagrids
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***********************************************************************************/
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Windows.Data;
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using System.Windows;
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namespace Xceed.Wpf.AvalonDock.Converters
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{
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[ValueConversion(typeof(bool), typeof(Visibility))]
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public class InverseBoolToVisibilityConverter : IValueConverter
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{
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#region IValueConverter Members
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/// <summary>
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/// Converts a value.
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/// </summary>
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/// <param name="value">The value produced by the binding source.</param>
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/// <param name="targetType">The type of the binding target property.</param>
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/// <param name="parameter">The converter parameter to use.</param>
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/// <param name="culture">The culture to use in the converter.</param>
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/// <returns>
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/// A converted value. If the method returns null, the valid null value is used.
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/// </returns>
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public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
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{
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if (value is bool && targetType == typeof(Visibility))
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{
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bool val = !(bool)value;
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if (val)
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return Visibility.Visible;
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else
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if (parameter != null && parameter is Visibility )
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return parameter;
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else
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return Visibility.Collapsed;
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}
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throw new ArgumentException("Invalid argument/return type. Expected argument: bool and return type: Visibility");
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}
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/// <summary>
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/// Converts a value.
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/// </summary>
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/// <param name="value">The value that is produced by the binding target.</param>
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/// <param name="targetType">The type to convert to.</param>
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/// <param name="parameter">The converter parameter to use.</param>
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/// <param name="culture">The culture to use in the converter.</param>
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/// <returns>
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/// A converted value. If the method returns null, the valid null value is used.
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/// </returns>
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public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
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{
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if (value is Visibility && targetType == typeof(bool))
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{
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Visibility val = (Visibility)value;
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if (val == Visibility.Visible)
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return false;
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else
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return true;
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}
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throw new ArgumentException("Invalid argument/return type. Expected argument: Visibility and return type: bool");
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}
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#endregion
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}
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}
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