WPF的5种绑定模式
- OneWay（源变就更新目标属性）
- TwoWay（源变就更新目标并且目标变就更新源）
- OneTime（只根据源来设置目标，以后都不会变）
- OneWayToSource（与OneWay相反）
- Default（可以单向或双向，是靠被值定的源或目标是否有get或set来指定的）
演示效果
XAML
<Window x:Class="WPF_CH07_Demo01.MainWindow"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:d="http://schemas.microsoft.com/expression/blend/2008"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"xmlns:local="clr-namespace:WPF_CH07_Demo01"mc:Ignorable="d"Name="MainWindow1"Title="MainWindow" Height="450" Width="800"><StackPanel><Slider Name="sb1" Minimum="0" Maximum="100" Value="50" Width="300" Height=" 30" SmallChange="1"/><Grid><Grid.RowDefinitions><RowDefinition/><RowDefinition/><RowDefinition/><RowDefinition/></Grid.RowDefinitions><Grid.ColumnDefinitions><ColumnDefinition Width="300"/><ColumnDefinition/></Grid.ColumnDefinitions><Label Grid.Row="0" Grid.Column="0" Content="OneWay"/><TextBox Grid.Row="0" Grid.Column="1" Text="{Binding ElementName=sb1,Path=Value,Mode=OneWay}"/><Label Grid.Row="1" Grid.Column="0" Content="OneWayToSource"/><TextBox Grid.Row="1" Grid.Column="1" Text="{Binding ElementName=sb1,Path=Value,Mode=OneWayToSource}"/><Label Grid.Row="2" Grid.Column="0" Content="TwoWay"/><TextBox Grid.Row="2" Grid.Column="1" Text="{Binding ElementName=sb1,Path=Value,Mode=TwoWay}"/><Label Grid.Row="3" Grid.Column="0" Content="OneTime"/><TextBox Grid.Row="3" Grid.Column="1" Text="{Binding ElementName=sb1,Path=Value,Mode=OneTime}"/></Grid></StackPanel>
</Window>
