init

Common/DTS.Common/.svn/pristine/78/78c1fdd62cde4f04bdc58c334c62fe30ef8bde30.svn-base

@@ -0,0 +1,59 @@
+using System;
+using System.Windows;
+using System.Windows.Data;
+
+namespace DTS.Common.Converters
+{
+    /// <summary>
+    /// Represents the converter that converts Boolean values to and from <see cref="Visibility">Visibility</see>  enumeration values.
+    /// </summary>
+    /// 
+    /// <remarks>
+    /// Use the BooleanToVisibilityConverter class to convert a Boolean to and from a <see cref="Visibility">Visibility</see> value. 
+    /// The Convert method returns <see cref="Visibility.Visible">Visibility.Visible</see> when <b>true</b> is passed in 
+    /// or <see cref="Visibility.Collapsed">Visibility.Collapsed</see> when <b>false</b> is passed in. 
+    /// Note that the <see cref="Visibility.Collapsed">Visibility.Collapsed</see> value hides the control and does not reserve space for it in a layout. 
+    /// When you call the ConvertBack method and specify a reference to an object, it returns <b>true</b> 
+    /// if the object is <see cref="Visibility.Visible">Visible</see>; otherwise, it returns <b>false</b>.
+    /// </remarks>
+    /// 
+    public class BooleanToVisibilityConverter : IValueConverter
+    {
+        /// <summary>
+        /// Converts a Boolean value to a Visibility enumeration value.
+        /// </summary>
+        /// <param name="value">The Boolean value to convert. This value can be a standard Boolean value or a nullable Boolean value.</param>
+        /// <param name="targetType">This parameter is not used.</param>
+        /// <param name="parameter">The converter parameter to use.</param>
+        /// <param name="culture">This parameter is not used.</param>
+        /// <returns>The value to be passed to the target dependency property.</returns>
+        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            var useFalseAsVisible = parameter != null && parameter.ToString().ToUpper() == "FALSE";
+            var hideNotCollapse = parameter != null && parameter.ToString().ToUpper() == "HIDE";
+
+            if (!useFalseAsVisible)
+            {
+                if ((bool)value)
+                    return Visibility.Visible;
+                return hideNotCollapse ? Visibility.Hidden : Visibility.Collapsed;
+            }
+            if ((bool)value)
+                return hideNotCollapse ? Visibility.Hidden : Visibility.Collapsed;
+            return Visibility.Visible;
+        }
+
+        /// <summary>
+        /// Converts a Visibility enumeration value to a Boolean value.
+        /// </summary>
+        /// <param name="value">A Visibility enumeration value.</param>
+        /// <param name="targetType">This parameter is not used.</param>
+        /// <param name="parameter">This parameter is not used.</param>
+        /// <param name="culture">This parameter is not used.</param>
+        /// <returns>The value to be passed to the source object.</returns>
+        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
+        {
+            return null;
+        }
+    }
+}