WPF Learning Path (v) Example: WordPad

WordPad instance One

MainWindow.xaml

<window x:class="Wordpad01.mainwindow"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="Http://schemas.microsoft.com/winfx/2006/xaml"Title="WordPad1.0"height=" -"Width="525"> <Grid> <Grid.RowDefinitions> <rowdefinition height="Auto"/> <rowdefinition height="Auto"/> <rowdefinition height="*"/> </Grid.RowDefinitions> <menu grid.row="0"> <menuitem header="File"/> <menuitem header="Copy"/> <menuitem header="Paste"/> <menuitem header="Cut"/> <menuitem header="Delete"/> </Menu> <toolbar grid.row="1"> <Button> <image source="/images/copy.png"/> </Button> <Button> <image source="/images/paste.png"/> </Button> <Button> <image source="/images/cut.png"/> </Button> <Button> <image source="/images/delete.png"/> </Button> </ToolBar> <textbox x:name="text"grid.row="2"text="WordPad"Fontsize=" -"Horizontalalignment="Center"Verticalalignment="Center"/> </Grid></Window>

Mainly rely on the Clipboard class to achieve

Add Click Time for button

<menuitem header= "Copy" click= "Copyclick"/>

<button click= "Copyclick" >

Private voidCopyclick (Objectsender, RoutedEventArgs e) {    if(text. Text! =NULL&& text. Text.length >0{clipboard.settext (text).    Text); }}Private voidPasteclick (Objectsender, RoutedEventArgs e) {    if(Clipboard.containstext ()) {text. Text=Clipboard.gettext (); }}Private voidCutclick (Objectsender, RoutedEventArgs e)    {Copyclick (sender, E); Deleteclick (sender, E);}Private voidDeleteclick (Objectsender, RoutedEventArgs e) {text. Text=NULL;}

Add Right-click menu

<textbox x:name="text"grid.row="2"text="WordPad"Fontsize=" -"textwrapping="Wrap"height="Auto"Width="Auto"margin="5"> <TextBox.ContextMenu> <ContextMenu> <menuitem header="Copy"click="Copyclick"/> <menuitem header="Paste"click="Pasteclick"/> <menuitem header="Cut"click="Cutclick"/> <menuitem header="Delete"click="Deleteclick"/> </ContextMenu> </TextBox.ContextMenu>
</TextBox>

Add shortcut keys KeyGesture

PrivateKeyGesture gestcopy =NewKeyGesture (key.c, Modifierkeys.control);PrivateKeyGesture Gestpaste =NewKeyGesture (KEY.V, Modifierkeys.control);PrivateKeyGesture Gestcut =NewKeyGesture (key.x, Modifierkeys.control);PrivateKeyGesture gestdelete=NewKeyGesture (key.delete);protected Override voidOnpreviewkeydown (KeyEventArgs e) {Base.    Onpreviewkeydown (e); E.handled=true; if(Gestcopy.matches (NULL, E)) {Copyclick ( This, E); }    Else if(Gestpaste.matches (NULL, E)) {Pasteclick ( This, E); }    Else if(Gestcut.matches (NULL, E)) {Cutclick ( This, E); }    Else if(Gestdelete.matches (NULL, E)) {Deleteclick ( This, E); }}

Add State control

Menu bar

<menuitem header="File"Submenuopened="menuitem_submenuopened"/><menuitem x:name="CopyItem"Header="Copy"click="Copyclick"/><menuitem x:name="Pasteitem"Header="Paste"click="Pasteclick"/><menuitem x:name="Cutitem"Header="Cut"click="Cutclick"/><menuitem x:name="DeleteItem"Header="Delete"click="Deleteclick"/>

Private void menuitem_submenuopened (object= copyitem.isenabled = deleteitem.isenabled    　　null  0= clipboard.containstext ();
}

TextBox in the same vein

<textbox x:name= "text" contextmenuopening= "text_contextmenuopening" >

Shortcut keys and toolbars above

A simple WordPad program completed, but there is no trouble to find, the next edition of update WordPad2.0

To be continue ...

WPF Learning Path (v) Example: WordPad