代码注意事项：
1、代码实现的样式赋值
XXX.Style = TryFindResource("StyleName") as Style;
2.WPF中FindName方法的使用
(1)简单的使用 前台代码：
<Button x:Name= "btnName" Click= "btnName_Click" >Test Method FindName</Button> |
后台代码:
private void btnName_Click(object sender, RoutedEventArgs e)
{
Button b = FindName("btnName") as Button;
MessageBox.Show(b.Name);
}
（2）在模板中使用FindName方法
<Grid> <Grid x:Name= "childGrid" > <Button x:Name= "rootBtn" > <Button.Template> <ControlTemplate> <Button x:Name= "btnName" Click= "btnName_Click" >Test Method FindName</Button> </ControlTemplate> </Button.Template> </Button> </Grid> </Grid> |
后台代码：
private void btnName_Click( object sender, RoutedEventArgs e) { Button b = rootBtn.Template.FindName( "btnName" ,rootBtn) as Button; MessageBox.Show(b.Name); } |
3.使用多个绑定参数
<Button Height= "23" Command= "{Binding AddCommand}" Content= "计算" HorizontalAlignment= "Left" Margin= "20,0,0,49" Name= "button1" VerticalAlignment= "Bottom" Width= "75" > <Button.CommandParameter> <MultiBinding Converter= "{StaticResource ParameterConverter}" > <Binding Path= "Text" ElementName= "textBox1" /> <Binding Path= "Text" ElementName= "textBox2" /> </MultiBinding> </Button.CommandParameter> |
<Grid> <x:Code> <![CDATA[ private void button1_Click( object sender, RoutedEventArgs e) { button1.Background = Brushes.Blue; button1.Content = "The code is in XAML" ; MessageBox.Show( "hi" ); } ]]></x:Code> <Button Height= "23" Margin= "46,56,32,0" Name= "button1" VerticalAlignment= "Top" Click= "button1_Click" >Click me!</Button> </Grid> |
5、各属性对应的C#代码
5.1<Window><Grid><Button ...></Grid></window>
等效代码如下：
Grid g = new Grid(); Button b = new Button(); b.Width = 100; b.Height = 100; b.Content = "Test Button" ; b.Foreground = Brushes.LightBlue; g.Children.Add(b); myWindow.AddChild(g); |
6、ItemContainerGenerator.ContainerFromIndex方法的使用
TreeViewItem item = (TreeViewItem)myTreeView.ItemContainerGenerator.ContainerFromIndex(1); |
7、WPF获取子控件和父控件方法
public class Globals { /// <summary> /// 获取父控件方法。该方法将根据当前控件，遍历查找其父控件是否存在。参数1是表示当前子控件名，参数2是要查询父控件名； /// </summary> public T GetParentObject<T>(DependencyObject obj, string name) where T : FrameworkElement { DependencyObject parent = VisualTreeHelper.GetParent(obj); while (parent != null ) { if (parent is T && (((T)parent).Name == name | string .IsNullOrEmpty(name))) { return (T)parent; } parent = VisualTreeHelper.GetParent(parent); } return null ; } /// <summary> /// 该方法将根据当前控件，遍历查找其子控件是否存在。参数1是表示当前父控件名，参数2是要查询子控件名； /// </summary> public T GetChildObject<T>(DependencyObject obj, string name) where T : FrameworkElement { DependencyObject child = null ; T grandChild = null ; for ( int i = 0; i <= VisualTreeHelper.GetChildrenCount(obj) - 1; i++) { child = VisualTreeHelper.GetChild(obj, i); if (child is T && (((T)child).Name == name | string .IsNullOrEmpty(name))) { return (T)child; } else { grandChild = GetChildObject<T>(child, name); if (grandChild != null ) return grandChild; } } return null ; } /// <summary> /// 该方法将把所有子控件作为List集合返回到客户端。 /// 其中第一个参数是父控件参数，而第二个参数是特定子控件名称， /// 如果需要遍历全部子控件，第二个参数留空即可。 /// </summary> public List<T> GetChildObjects<T>(DependencyObject obj, string name) where T : FrameworkElement { DependencyObject child = null ; List<T> childList = new List<T>(); for ( int i = 0; i <= VisualTreeHelper.GetChildrenCount(obj) - 1; i++) { child = VisualTreeHelper.GetChild(obj, i); if (child is T && (((T)child).Name == name || string .IsNullOrEmpty(name))) { childList.Add((T)child); } childList.AddRange(GetChildObjects<T>(child, "" )); } return childList; } } |
XAML：
Globals VTHelper = new Globals(); StackPanel sp = VTHelper.GetChildObject<StackPanel>( this .LayoutRoot, "spDemoPanel" ); Grid layoutGrid = VTHelper.GetParentObject<Grid>( this .spDemoPanel, "LayoutRoot" ); List<TextBlock> textblock = VTHelper.GetChildObjects<TextBlock>( this .LayoutRoot, "" ); |
8.GridSplitter控件的使用：
<Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width= "90*" /> <ColumnDefinition Width= "Auto" /> <ColumnDefinition Width= "180*" /> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height= "190*" /> <RowDefinition Height= "Auto" /> <RowDefinition Height= "70*" /> </Grid.RowDefinitions> <Button Content= "ButtonA" Margin= "3" Grid.Row= "0" Grid.Column= "0" Grid.RowSpan= "3" /> <Button Content= "ButtonB" Margin= "3" Grid.Row= "0" Grid.Column= "2" /> <Button Content= "ButtonC" Margin= "3" Grid.Row= "2" Grid.Column= "2" /> <GridSplitter Width= "3" HorizontalAlignment= "Stretch" VerticalAlignment= "Stretch" Grid.Row= "0" Grid.Column= "1" Grid.RowSpan= "3" ></GridSplitter> <GridSplitter Height= "3" VerticalAlignment= "Stretch" HorizontalAlignment= "Stretch" Grid.Row= "1" Grid.Column= "2" ></GridSplitter> </Grid> |
效果图:
9.UniformGrid控件中每行没列都相等
<UniformGrid> <Button Content= "ButtonA" /> <Button Content= "ButtonB" /> <Button Content= "ButtonC" /> <Button Content= "ButtonD" /> <Button Content= "ButtonE" /> <Button Content= "ButtonF" /> <Button Content= "ButtonG" /> <Button Content= "ButtonH" /> </UniformGrid> |
如图：
