wpf 数据绑定

# wpf UI 界面 数据绑定 四种类型

ComplicatedButton\ComplicatedButton\MainWindow.xaml

<Window x:Class="WpfApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="250" Width="200">
    <Grid>

        <StackPanel>

            <Slider x:Name="slider" Margin="20"></Slider>

            <!--默认双向绑定-->
            <StackPanel Orientation="Horizontal">
                <Label Content="Nothing : "></Label>
                <TextBox Text="{Binding ElementName=slider,Path=Value}" Width="100" Height="20"   ></TextBox>
            </StackPanel>


            <!--默认双向绑定-->
            <StackPanel Orientation="Horizontal">
                <Label Content="Default : "></Label>
                <TextBox Text="{Binding ElementName=slider,Path=Value,Mode=Default}" Width="100" Height="20"   ></TextBox>
            </StackPanel>


            <!--第一次绑定-->
            <StackPanel Orientation="Horizontal">
                <Label Content="OneTime : "></Label>
                <TextBox Text="{Binding ElementName=slider,Path=Value,Mode=OneTime}" Width="100" Height="20"   ></TextBox>
            </StackPanel>


            <!--单向绑定-->
            <StackPanel Orientation="Horizontal">
                <Label Content="OneWay : "></Label>
                <TextBox Text="{Binding ElementName=slider,Path=Value,Mode=OneWay}" Width="100" Height="20"   ></TextBox>
            </StackPanel>

            <!--单向绑定(反向)-->
            <StackPanel Orientation="Horizontal">
                <Label Content="OneWayToSource : "></Label>
                <TextBox Text="{Binding ElementName=slider,Path=Value,Mode=OneWayToSource}" Width="100" Height="20" ></TextBox>
            </StackPanel>

            <!--双向绑定-->
            <StackPanel Orientation="Horizontal">
                <Label Content="TwoWay : "></Label>
                <TextBox Text="{Binding ElementName=slider,Path=Value,Mode=TwoWay}" Width="100" Height="20"   ></TextBox>
            </StackPanel>

        </StackPanel>
    </Grid>
</Window>