WPFnew.docx
- 文档编号:29912120
- 上传时间:2023-08-03
- 格式:DOCX
- 页数:31
- 大小:25.46KB
WPFnew.docx
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WPFnew
WPFLastestSummary
ListViewlv=newListView();
System.Windows.Stylestyle=(style)this.FindResource("mylistview");
lv.Style=style
WpfApplication3.Window1win=newWpfApplication3.Window1();
ListViewlstview=win.FindName("LstView")asListView;
if(lstview!
=null)
{
(lstview.ParentasPanel).Children.Clear();//Detachfromitsparent,aControlcan'tbeaddedinto2containersatonetime
lstview.Background=Brushes.Yellow;
stackPanel.Children.Add(lstview);
}
//siteoforigin: ,,/PageTheme.xaml"/> Uriuri=newUri("pack: //application: ,,/ReferencedAssembly;component/ResourceFile.xaml",UriKind.Absolute); ControlTemplate: ContentControl在实际中可能很少使用,但却很重要,这便是我引出的话题.我们来看下Label控件的父类,就是ContentControl,为什么不是Control类? 如Label控件的Content属性其实是由ContentControl类定义的,目的是为了将Content的内容显示在wpf窗体。 那没有了ConentControl类,我们就不能将内容显示在wpf窗体上了吗? 或者问ContentControl类的Content是如何显示在wpf窗体上的呢? ContentControl在实际中可能很少使用,但却很重要,这便是我引出的话题.我们来看下Label控件的父类,就是ContentControl,为什么不是Control类? 如Label控件的Content属性其实是由ContentControl类定义的,目的是为了将Content的内容显示在wpf窗体。 那没有了ConentControl类,我们就不能将内容显示在wpf窗体上了吗? 或者问ContentControl类的Content是如何显示在wpf窗体上的呢? Nowusingthecontentpresentertoshowthelabel’scontent: mylabel 总结一下 1.如Ellipse是为了在模板中装饰控件外观,可以通过控件的属性与其属性绑定来美化控件 2.ContentPresenter用于显示控件的ContentControl的Content属性 So控件=外观+内容 TreeViewstyle: xmlns: x=" Key="treeData"XPath="*"> XData> XData> : *}" x: Key="template"> ItemsSource="{BindingSource={StaticResourcetreeData}}"> --UsingstylesettertosettheTreeViewItem.IsExpandedpropertytotrue,thiswillbeapplied toallTreeViweItemswhentheyaregenerated--> TypeTreeViewItem}"> 如何在ListBox/ListView中实现拖拽? Width="200" Height="200" SelectionMode="Multiple"> TypeListBoxItem}"> Handler="ListBoxItem_PreviewMouseLeftButtonDown"/> Handler="ListBoxItem_PreviewMouseUp"/> Handler="ListBoxItem_PreviewMouseMove"/> TypeTypeName="DependencyObject"/> TypeTypeName="Visual"/> TypeTypeName="UIElement"/> TypeTypeName="FrameworkElement"/> TypeTypeName="Control"/> Codebehind: publicpartialclassWindow1: Window { //ThisfieldisusedtotellifListBoxisinmouseselectionmode. privateBooleaninMouseSelectionMode=false; //Thisfieldisusedtokeeptrackofthecurrentmouseselecteditems. privateList publicWindow1() { InitializeComponent(); } privatevoidListBoxItem_PreviewMouseUp(objectsender,MouseButtonEventArgse) { //Ifthemouseisup,turnoff"inMouseSelectionMode" inMouseSelectionMode=false; } privatevoidListBoxItem_PreviewMouseMove(objectsender,MouseEventArgse) { ListBoxItemmouseOverItem=senderasListBoxItem; if(mouseOverItem! =null&&inMouseSelectionMode&&e.LeftButton==MouseButtonState.Pressed) { mouseOverItem.Background=SystemColors.HighlightBrush; //Highlightthecurrentlymouse-overeditem. mouseOverItem.SetValue(TextElement.ForegroundProperty,SystemColors.HighlightTextBrush); if(! selectedItems.Contains(mouseOverItem)) { selectedItems.Add(mouseOverItem); } } } privatevoidListBoxItem_PreviewMouseLeftButtonDown(objectsender,MouseButtonEventArgse) { //Whenthemouseisdown,weneedtoclearallpreviouslymouseselecteditems. listBox.SelectedIndex=-1; inMouseSelectionMode=true; foreach(ListBoxItemiteminselectedItems) { item.ClearValue(ListBoxItem.BackgroundProperty); item.ClearValue(TextElement.ForegroundProperty); } selectedItems.Clear(); } } HowtoimplementRadioButtonListtypeofcontrolinWPF? ArrayType="{x: Types: String}"x: Key="data"> String>Option1 String> String>Option2 String> String>Option3 String> Array> "/> TypeListBoxItem}"> TypeListBoxItem}"> 3Createamenuwithatoolbar: Menu.xaml: xmlns: x=" Toolbar.xaml: xmlns: x=" //siteoforigin: ,,/cut.png"/> //siteoforigin: ,,/copy.png"/> //siteoforigin: ,,/paste.png"/> Styletrigger,whentheimageisenable,thenbecomesemi-transparent. Codebehind: publicWindow1() { InitializeComponent(); using(FileStreams=newFileStream("Menu.xaml",FileMode.Open)) { Menumenu=XamlReader.Load(s,newParserContext())asMenu; if(menu! =null) { main.Children.Insert(0,menu); } } using(FileStreams=newFileStream("ToolBar1.xaml",FileMode.Open)) { ToolBartool=XamlReader.Load(s,newParserContext())asToolBar; if(tool! =null) { main.Children.Insert(1,tool); } } } BindinttoDatabase: MyConvertx: Key="convert"/>//自定义转换类 Key="Data">//自定义模板 Codebehind: DataSetds=newDataSet(); privatevoidWindow_Loaded(objectsender,RoutedEventArgse) { stringConn=@"DataSource=.;InitialCatalog=Test;IntegratedSecurity=True"; using(SqlConnectioncn=newSqlConnection(Conn)) { cn.Open(); stringsql="select*fromUserAddress"; using(SqlDataAdapteradp=newSqlDataAdapter(sql,cn)) { adp.Fill(ds,"Book"); } } this.mylist.DataContext=ds;//为listbox设置绑定源 } Converter: publicclassMyConvert: IValueConverter { publicobjectConvert(objectvalue,TypeTargetType,objectparameter,CultureInfocultrue) { stringi=value.ToString(); intnumvalue=int.Parse(i); if(numvalue>350) { returnSystem.Windows.Media.Brushes.Red; } else { returnSystem.Windows.Media.Brushes.Blue; } } publicobjectConvertBack(objectvalue,TypeTargetType,objectparameter,CultureInfocultrue) { returnnull; } } ImplementingtheINotifyCollectionChanged: XAML: Key="OnLoaded"/> Key="FactoryDS"ObjectType="{x: Typelocal: Factory}"/> Key="FOOTemplate1">
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- WPF new