Class DoubleComparisonToBooleanConverter

Compares a double to the converter parameter and converts to a boolean. If used as System.Windows.Data.IMultiValueConverter the first value is compared to the second.

Inheritance

System.Object

System.Windows.Markup.MarkupExtension

DoubleComparisonToBooleanConverter

Implements

System.Windows.Data.IValueConverter

System.Windows.Data.IMultiValueConverter

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: Sartorius.SAF.Presentation.Converter

Assembly: Sartorius.SAF.Presentation.dll

Syntax

public class DoubleComparisonToBooleanConverter : MarkupExtension, IValueConverter, IMultiValueConverter

Remarks

Value and parameter provided to this converter must be System.IConvertible. If the parameter is not System.IConvertible 0 will be assumed. If the value is not System.IConvertible a System.InvalidCastException is thrown.

The converter cannot ConvertBack(Object, Type, Object, CultureInfo) or ConvertBack(Object, Type[], Object, CultureInfo). A System.NotSupportedException will be thrown when any of the two methods is called.

When used as System.Windows.Data.IMultiValueConverter the converter parameter can be used to provide the ComparisonType.

Properties

ComparisonType

Gets or sets the type of the comparison.

Declaration

public ComparisonType ComparisonType { get; set; }

Property Value

Type	Description
ComparisonType	The type of the comparison.

Methods

Convert(Object, Type, Object, CultureInfo)

Converts a value.

Declaration

public object Convert(object value, Type targetType, object parameter, CultureInfo culture)

Parameters

Type	Name	Description
System.Object	value	The value produced by the binding source.
System.Type	targetType	The type of the binding target property.
System.Object	parameter	The converter parameter to use.
System.Globalization.CultureInfo	culture	The culture to use in the converter.

Returns

Type	Description
System.Object	A converted value. If the method returns null, the valid null value is used.

Convert(Object[], Type, Object, CultureInfo)

Converts source values to a value for the binding target. The data binding engine calls this method when it propagates the values from source bindings to the binding target.

Declaration

public object Convert(object[] values, Type targetType, object parameter, CultureInfo culture)

Parameters

Type	Name	Description
System.Object[]	values	The array of values that the source bindings in the System.Windows.Data.MultiBinding produces. The value System.Windows.DependencyProperty.UnsetValue indicates that the source binding has no value to provide for conversion.
System.Type	targetType	The type of the binding target property.
System.Object	parameter	The converter parameter to use.
System.Globalization.CultureInfo	culture	The culture to use in the converter.

Returns

Type

Description

System.Object

A converted value.If the method returns null, the valid null value is used.A return value of System.Windows.DependencyProperty.System.Windows.DependencyProperty.UnsetValue indicates that the converter did not produce a value, and that the binding will use the System.Windows.Data.BindingBase.FallbackValue if it is available, or else will use the default value.A return value of System.Windows.Data.Binding.System.Windows.Data.Binding.DoNothing indicates that the binding does not transfer the value or use the System.Windows.Data.BindingBase.FallbackValue or the default value.

ConvertBack(Object, Type, Object, CultureInfo)

Converts a value.

Declaration

public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)

Parameters

Type	Name	Description
System.Object	value	The value that is produced by the binding target.
System.Type	targetType	The type to convert to.
System.Object	parameter	The converter parameter to use.
System.Globalization.CultureInfo	culture	The culture to use in the converter.

Returns

Type	Description
System.Object	A converted value. If the method returns null, the valid null value is used.

ConvertBack(Object, Type[], Object, CultureInfo)

Converts a binding target value to the source binding values.

Declaration

public object[] ConvertBack(object value, Type[] targetTypes, object parameter, CultureInfo culture)

Parameters

Type	Name	Description
System.Object	value	The value that the binding target produces.
System.Type[]	targetTypes	The array of types to convert to. The array length indicates the number and types of values that are suggested for the method to return.
System.Object	parameter	The converter parameter to use.
System.Globalization.CultureInfo	culture	The culture to use in the converter.

Returns

Type	Description
System.Object[]	An array of values that have been converted from the target value back to the source values.

ProvideValue(IServiceProvider)

When implemented in a derived class, returns an object that is provided as the value of the target property for this markup extension.

Declaration

public override object ProvideValue(IServiceProvider serviceProvider)

Parameters

Type	Name	Description
System.IServiceProvider	serviceProvider	A service provider helper that can provide services for the markup extension.

Returns

Type	Description
System.Object	The object value to set on the property where the extension is applied.

Overrides

System.Windows.Markup.MarkupExtension.ProvideValue(System.IServiceProvider)

Implements

System.Windows.Data.IValueConverter

System.Windows.Data.IMultiValueConverter

Extension Methods

CollectionExtensions.AddRange<T, TCollection>(TCollection, IEnumerable<T>)

SerializableObjectCloneExtension.Clone<T>(T)