WPF Interview questions and answers Part 5

1.) How many types of Documents are supported by WPF ?                                 
There are two types of documents supported by WPF.

1. Fixed Format Documents :- This document present content irrespective of the screen size.
2. Flow Format Documents:- This document is basically used to alter the contents to on the screen.

2.) What are the freezable objects in WPF ?                                                                         

A Freezable object is those objects which is unchangeable. The freezable objects are better and safer to shared between the threads.

3.) What is PRISM in WPF ?                                                                                                        

PRISM is a framework that is used for creating complex application for wpf ,silverlight and windows Phones.

4.) What is CustomControl WPF ?                                                                                            
Custom Control is basically used to expand the functions of existing controls.It contains a default layout in theme and code file.
5.) Why does we use CustomControl in WPF ?                                                                    
Custom control is the best way to make a control library.

6.) Which tool is used to sketech a mock of your in WPF applicatiion ?                   
SketchFlow tool
7.) What is namespace used in 3D apps in WPF ?                                                              
Using  System.Windows.Media.Medi3D
8.) What is the new Graphics features of WPF ?                                                                
There are some new graphics of wpf.

• Entirely New Text Rendering stack
• Layout Rounding
• ClearTypeHint -Clear Type on IRIs
• Animation Easing Functions
• Pixel shader 3.0 support
• cached composition
• Visual Scrollable AreaClip

9.) What is WPF for Window 7 ?                                                                                                
It is used to develop rapid application on window 7 Innovations such as

• Multi touch
• Task Bar 
• Ribbon
• Common Dialogs
• File Explorer presence and customization and more

 10.) What is WPF Task-bar Integration ?                                                                             

• Thumbnails toolbars
• Icon Overlays
• Progress bars
• Jump lists

 11.) What is tooling Improvements (VisualStudioDesigner & Blend3) in WPF  ?
There are some improvements in VisualStudioDesigner and Blend3 tool.
Visual Studio Designer :-

• RAD data binding
• Easier auto layout
• Markup extension Intellisence
• More property Easier

Blend3 :-

• Improvements to XAML authoring and work flow
• VSM
• Behaviors
• Transition animations
• Prototyping tool

 12.) What is the features of XAML  ?                                                                                      
1.) [MS-WPFXV]

• wpf's file format was published [MS-WPFXV] WPF XAML vocabulary.

2.) .NET 4 has XAML Parser

• It is faster.
• It has more extensibility during XAML DURING xaml Reader.Load and Xaml.save BAML file format has public APIs to Read/Write.

3.) .NET 4 'S xaml Parse has new XAML language features

• It is suitability to use generics.
• It is better preferences by name.

 13.) What is the layout models of XAML  ?                                                                           

1. Canvas :- It is a specific placement.
2. StackPanel :- It is a specific placement or vertical stacking.
3. DockPanel :- It is control Docking (Explorer like)
4. Grid :- It is a Guideline based UI.
5. TextFlow :-It is a Document flow.
6. Navigation :- It is web like forward/like.

14.) Is MDI Supported in WPF  ?                                                                                               
NO
15.) How many types of Drawing objects are used in WPF ?                                          
There are four types of Drawing objects.

1. Geometry Drawing ->  Draws a shape
2. Image Drawing ->Draws an image
3. GlyphRun Drawing->Draws Text
4. Drawing Group-> Draws other drawings

Learn More .NET Interview Questions and Answers