NoesisGUI
Documentation Index

MultiBinding Class

namespace Noesis | MSDN

Describes a collection of Binding objects attached to a single binding target property.

Example:

<Border>
  <Border.Width>
    <MultiBinding Converter="{StaticResource AddConverter}">
      <Binding ElementName="source1" Path="Width"/>
      <Binding ElementName="source2" Path="Width"/>
    </MultiBinding>
  </Border.Width>
</Border>
<TextBlock>
  <TextBlock.Text>
    <MultiBinding StringFormat="{}{0} x {1}">
      <Binding Path="Width" />
      <Binding Path="Height" />
    </MultiBinding>
  </TextBlock.Text>
</TextBlock>

Inheritance Hierarchy

• MarkupExtension
• BaseBinding
• MultiBinding

INDEX Class Hierarchy Index

Properties

Name Description
 Bindings Gets the collection of Binding objects within this MultiBinding instance
 Converter Gets or sets the converter to use to convert the source values to or from the target value
 ConverterParameter Gets or sets the parameter to pass to the Converter
 Mode

Gets or sets the binding mode. It can be set to one of the following values of the BindingMode enumeration:

  • OneWay: The target is updated whenever the source changes.
  • TwoWay: A change to either the target or source updates the other.
  • OneWayToSource: The opposite of OneWay. The source is updated whenever the targetchanges.
  • OneTime: This works just like OneWay, except changes to the source are notreflected at the target. The target retains a snapshot of the source at the time the Binding is initiated.
 UpdateSourceTrigger

Gets or sets a value that determines the timing of binding source updates:

  • Default: The default UpdateSourceTrigger value of the binding target property. Thedefault value for most dependency properties is PropertyChanged, while the Text property has a default value of LostFocus.
  • PropertyChanged: The source is updated whenever the target property value changes.
  • LostFocus: When the target property value changes, the source is only updated afterthe target element loses focus.
  • Explicit: The source is only updated when you make an explicit call to*BindingExpression.UpdateSource*.

 Dependency Property    Reflection Property


From BaseBinding

Name Description
 Delay Gets or sets the amount of time, in milliseconds, to wait before updating the binding source after the value on the target changes
 FallbackValue Gets or sets the value to use when the binding is unable to return a value
 StringFormat

Gets or sets a string that specifies how to format the binding if it displays the bound value as a string.

Examples:

<TextBlock Text="{Binding Amount, StringFormat=F2}" />
<TextBlock Text="{Binding Amount, StringFormat={}{0:F2}}" />
<TextBlock Text="{Binding Amount, StringFormat=Value is {0:F2} units}" />
 TargetNullValue Gets or sets the value to use when final target value is null

 Dependency Property    Reflection Property

Attached Properties

MultiBinding has no attached properties

Methods

Name Description
 ProvideValue(provider) Can return 0 when the source object is not resolvable (doesn't throw exception)

From MarkupExtension

Name Description
 ProvideValue(provider) Returns an object that is provided as the value of the target property for this extension
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