#眉標=Vista開發技術
#副標=Windows Presentation Foundation（5）
#大標=解析Data Binding
#作者=文／蔡學鏞



==程式1	<box>===========
<ScrollBar Name="scroll"
    Orientation="Horizontal" Margin="24"
    Maximum="100" LargeChange="10" SmallChange="1" />

<Label HorizontalAlignment="Center"
    Content="{Binding ElementName=scroll, Path=Value}" />
==<end>==============




==<反灰>===========
Content="{Binding ElementName=scroll, Path=Value}"
==<end>==============



==<反灰>===========
Content="{Binding ElementName="scroll" Path="Value"}"
==<end>==============



==程式2 <box>===========
<ScrollBar Name="scroll"
    Orientation="Horizontal" Margin="24"
    Maximum="100" LargeChange="10" SmallChange="1" />

<Label HorizontalAlignment="Center">
    <Label.Content>
        <Binding ElementName="scroll" Path="Value" />
    </Label.Content>
</Label>
==<end>==============



== <反灰>===========
Content="{Binding ElementName=scroll, Path=Value, Mode=OneWay}" 
==<end>==============





==程式3<box>===========
<Label.Content>
    <Binding ElementName="scroll" Path="Value" Mode="OneWay" />
</Label.Content>
==<end>==============


==程式4	<box>===========
Content="{Binding ElementName=scroll, Path=Value, Mode=TwoWay}"
==<end>==============




== <反灰>===========
Content="{Binding ElementName=scroll, Path=Value, Mode=OneTime}"
==<end>==============




== <反灰>===========
Content="{Binding ElementName=scroll, Path=Value, Mode=OneWayToSource}"
==<end>==============




==程式5	<box>===========
<ScrollBar Name="scroll"
    Orientation="Horizontal" Margin="24"
    Maximum="100" LargeChange="10" SmallChange="1" />

<Label HorizontalAlignment="Center"
    DataContext="{Binding ElementName=scroll}"
    Content="{Binding Path=Value}" />
==<end>==============



== <反灰>===========
Path=Content.Children[1].SelectedItem.Content.Length
==<end>==============




==程式6	<box>===========
public class MyConverter: IValueConverter
{
    public object Convert(object value, Type typeTarget,
        object param, CultureInfo culture)
    {
        ...
    }
    Public object ConvertBack(object value, Type typeTarget,
        object param, CultureInfo culture)
    {
        ...
    }
}
==<end>==============




== <反灰>===========
Binding bind = new Binding();
bind.Convert = new MyConverter();
==<end>==============




==程式7	<box>===========
Text="{Binding ElementName=txtbox1, Path=Text, Mode=TwoWay,
    UpdateSourceTrigger=PropertyChanged}"
==<end>==============



==程式8	<box>===========
BindingExpression bindexp =
    txtboxSource.GetBindingExpression(TextBox.TextProperty);
==<end>==============



== <反灰>===========
bindexp.UpdateSource();
==<end>==============