WPF self-paced notes

What kinds of elements are used by WPF as top-level elements:

1. Window element

2. Page Element ( similar to the Window element for navigable applications)

3. Application Element (define application resources and startup settings)

PS: There can be only one top-level element in a WPF Application

1 <Windowx:class= "Wpfapplication2.mainwindow"2 xmlns= "Http://schemas.microsoft.com/winfx/2006/xaml/presentation"3 xmlns:x= "Http://schemas.microsoft.com/winfx/2006/xaml"4 Title= "MainWindow"Height= " the"Width= "525">5     <Grid>6         7     </Grid>8 </Window>

class is Classes

xmlns is an abbreviation for XML Namespaces , the Chinese name is the XML(a subset of the standard Generic Markup Language) namespace

xmlns[: Optional mapping prefix ]="namespace"

Name the element: (Take the grid element as an example)

Example one:

1 <Windowx:class= "Wpfapplication2.mainwindow"2 xmlns= "Http://schemas.microsoft.com/winfx/2006/xaml/presentation"3 xmlns:x= "Http://schemas.microsoft.com/winfx/2006/xaml"4 Title= "MainWindow"Height= " the"Width= "525">5     <GridName= "Grid1">6         7     </Grid>8 </Window>

Example two:

1 <Windowx:class= "Wpfapplication2.mainwindow"2 xmlns= "Http://schemas.microsoft.com/winfx/2006/xaml/presentation"3 xmlns:x= "Http://schemas.microsoft.com/winfx/2006/xaml"4 Title= "MainWindow"Height= " the"Width= "525">5     <Grid>6         <Grid.name>Grid1</Grid.name>7     </Grid>8 </Window>

The above two examples of equivalent

The above is the UI-level code

The logical code level invokes the name attribute of the above grid element as an example:

The following code will change the title of the form to the name attribute of the Grid element (try <Grid.Name>grid1</Grid.Name> Invalid)

UI Layer Code

1 <Windowx:class= "Wpfapplication2.mainwindow"2 xmlns= "Http://schemas.microsoft.com/winfx/2006/xaml/presentation"3 xmlns:x= "Http://schemas.microsoft.com/winfx/2006/xaml"4 Title= "MainWindow"Height= " the"Width= "525"Loaded= "window_loaded">5     <GridName= "Grid1">6     </Grid>7 </Window>

Logic Layer Code:

1 usingSystem;2 usingSystem.Collections.Generic;3 usingSystem.Linq;4 usingSystem.Text;5 usingSystem.Threading.Tasks;6 usingSystem.Windows;7 usingSystem.Windows.Controls;8 usingSystem.Windows.Data;9 usingSystem.Windows.Documents;Ten usingSystem.Windows.Input; One usingSystem.Windows.Media; A usingSystem.Windows.Media.Imaging; - usingSystem.Windows.Navigation; - usingSystem.Windows.Shapes; the  - namespaceWpfApplication2 - { -     /// <summary> +     ///the interactive logic of MainWindow.xaml -     /// </summary> +      Public Partial classMainwindow:window A     { at          PublicMainWindow () -         { - InitializeComponent (); -         } -  -         Private voidWindow_Loaded (Objectsender, RoutedEventArgs e) in         { -              This. Title = This. Grid1. Name; to         } +     } -}

WPF self-paced notes