85 lines
3.7 KiB
C#
85 lines
3.7 KiB
C#
using System;
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using System.Windows;
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using System.Windows.Data;
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namespace DTS.Common.Converters
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{
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/// <summary>
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/// Represents the converter that converts Boolean values to and from width values.
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/// </summary>
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///
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/// <remarks>
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/// Use the BooleanToColumnWidthConverter class to convert a Boolean to and from a width value.
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/// The Convert method returns <see cref="Visibility.Visible">Visibility.Visible</see> when <b>true</b> is passed in
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/// or <see cref="Visibility.Collapsed">Visibility.Collapsed</see> when <b>false</b> is passed in.
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/// Note that the <see cref="Visibility.Collapsed">Visibility.Collapsed</see> value hides the control and does not reserve space for it in a layout.
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/// When you call the ConvertBack method and specify a reference to an object, it returns <b>true</b>
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/// if the object is <see cref="Visibility.Visible">Visible</see>; otherwise, it returns <b>false</b>.
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/// </remarks>
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///
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public abstract class BooleanToColumnWidthConverter : IValueConverter
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{
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public abstract double DefaultWidth { get; }
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/// <summary>
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/// Converts a Boolean value to a Visibility enumeration value.
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/// </summary>
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/// <param name="value">The Boolean value to convert. This value can be a standard Boolean value or a nullable Boolean value.</param>
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/// <param name="targetType">This parameter is not used.</param>
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/// <param name="parameter">The converter parameter to use.</param>
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/// <param name="culture">This parameter is not used.</param>
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/// <returns>The value to be passed to the target dependency property.</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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var useFalseAsVisible = parameter != null && parameter.ToString().ToUpper() == "FALSE";
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if (useFalseAsVisible)
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{
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if ((bool)value)
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return 0D;
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return DefaultWidth;
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}
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if ((bool)value)
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return DefaultWidth;
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return 0D;
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}
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/// <summary>
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/// Converts a Visibility enumeration value to a Boolean value.
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/// </summary>
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/// <param name="value">A Visibility enumeration value.</param>
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/// <param name="targetType">This parameter is not used.</param>
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/// <param name="parameter">This parameter is not used.</param>
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/// <param name="culture">This parameter is not used.</param>
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/// <returns>The value to be passed to the source object.</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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return null;
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}
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}
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public class DASTableBooleanToColumnWidthConverter : BooleanToColumnWidthConverter
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{
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public override double DefaultWidth { get => 110D; }
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}
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public class ImportTestSetupBooleanToColumnWidthConverter : BooleanToColumnWidthConverter
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{
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public override double DefaultWidth { get => 175D; }
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}
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public class ImportTestSetupISOCodeBooleanToColumnWidthConverter : BooleanToColumnWidthConverter
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{
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public override double DefaultWidth { get => 140; }
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}
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public class ImportTestSetupISOChannelBooleanToColumnWidthConverter : BooleanToColumnWidthConverter
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{
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public override double DefaultWidth { get => 190; }
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}
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public class LevelTriggerBooleanToColumnWidthConverter : BooleanToColumnWidthConverter
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{
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public override double DefaultWidth { get => 210D; }
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}
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}
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