WPF Interview questions and answers part 6

1. ) What are the sibling libraries in WPF ?                                                                           
There are three types of sibling libraries in WPF.

1.  Windows Communication Foundation (wcf)
2. Windows Workflow Foundation (WWF)
3. CardSpace 

2. ) Why does we use CardSpace in WPF ?                                                                            

• CardSpace provides a common identification syatem.
• Cardspace can be used on Desktop applications ,Websites, etc.                                

3. ) Which languages can be used  as a common medium for Designers and Developers both ?

• XAML
• HTML

4. ) What is difference between a XAML File and code behind file in WPF ?           
There are following differences between XAML file and Code behind file.

• The XAML File contains the XAML Markup.
• The Code Behind file is associated with a XAML File and contains C# or VB Codes. 

5. ) Why does we use x:Name attribute XAML in WPF ?                                                  

• x:Name is used to allow you to uniquely Identify an instance of an object in XAML.
• The value of this attribute can be referenced in the associated c#.

6. ) What is an attached property in WPF ?                                                                          
An attached property is a property that is declared by one control and attached to another.

7. ) What kinds of documents are supported in WPF ?                                                     
There are two types of major documents supported in WPF.

•  Fixed format documents
• Flow format documents

8. ) What is Fixed format documents in WPF ?                                                                  
Fixed format documents look like a PDF format.It display content regardless of screen size and resolution.

9. ) What is Flow format documents in WPF ?                                                                  
Flow format documents adjust automatically depending on screen size and resolution.

10. ) What are the types of inline that can be used in a Text Block in WPF ?           

• Bold
• Span
• Italic
• Underline
• Run
• Line break
• Inline container
• Footer
• Figure

11. ) What is difference between a Panel and a Decorator ?                                           

• A Panel has a collection of children that arranges according to various rules,based on the type of panel.
• A Decorated has only one child to which it applies some additional set of behaviours.