C1Binding Class

A C1.WPF.Binding that supports formulas.

Object Model

Syntax

Visual Basic
C#

'Declaration
 
Public Class C1Binding 
   Inherits System.Windows.Markup.MarkupExtension

public class C1Binding : System.Windows.Markup.MarkupExtension

Remarks

The C1Binding class is similar to a regular C1.WPF.Binding, but supports expressions instead of simple paths.

The expression syntax is similar to the one used in Excel formulas, including support for the IF statement which makes it easy to create bindings that make Converters unnecessary.

Example

The XAML below uses the C1Binding class to bind several properties of a TextBlock element to a data value. Notice that the bindings are used to provide values for properties of several types, and no converters are required. Notice how the XAML snippet above specifies the 'Expression' property. This is required only in Silverlight, and could be omitted in WPF. Notice also how vertical bars ('|') are used to specify quotes inside expressions. You could also use " instead, but the bars made the code more readable.

<TextBlock 
    Text="{c1:C1Binding Expression=CustomerName}" 
    Visibility="{c1:C1Binding Expression='if(Active, |Visible|, |Collapsed|)'}"
    FontWeight="{c1:C1Binding Expression='if(Sales > 200, |Bold|, |Normal|)'}"
    Foreground="{c1:C1Binding Expression='if(Sales > 200, |Blue|, |Red|)'}" />

Inheritance Hierarchy

System.Object
System.Windows.Markup.MarkupExtension
C1.WPF.Binding.C1Binding

Reference

C1Binding Members
C1.WPF.Binding Namespace