wpf xaml 中的计算绑定不用convert

Key features and restrictions:

1. One or many source properties in Path with many available operators: description

<Label Content="{c:Binding A*0.5+(B.NestedProp1/C - B.NestedProp2 % C) }" />

<c:Binding 'A and B or C' />

2. One or many static properties in Path: description

<TextBox Text="{c:Binding 'local:StaticClass.Prop1 + local:OtherStaticClass.NestedProp.PropB + PropC'}"/>

<Button Background="{c:Binding '(A > B ? media:Brushes.LightBlue : media:Brushes.White)'}"/>

3. Properties and methods of class System.Math in Path: description

<TextBox Text="{c:Binding 'Math.Sin(Math.Cos(A))'}"/>

4. Enum types like constants or source properties in Path: description

<TextBox Text="{c:Binding '(EnumValue == local:CustomEnum.Value1 ? 10 : 20)'}"/>

5. Automatic inversion of binding expression if it's possible: description

<TextBox Text = "{c:Binding 'Math.Sin(A*2)-5'}"/> {two way binding will be created}

6. Automatic two way convertion of bool expression to Visibility and back if target property has such type: description

<Button Visibility="{c:Binding !IsChecked}" /> 
<Button Visibility="{c:Binding IsChecked, FalseToVisibility=Hidden}" />

7. Other features such as string and char constants support and other: description

8. General restrictions: description

 

GitHub - Alex141/CalcBinding: Advanced WPF Binding which supports expressions in Path property and other features

 

快速使用：PM> Install-Package CalcBinding 

xmlns:c="clr-namespace:CalcBinding;assembly=CalcBinding"

<Label IsEnabled="{c:Binding Path=!fullFill}" />