小编典典

在WPF中对WebBrowser的Source属性进行数据绑定

c#

有谁知道如何在WPF(3.5SP1)中对WebBrowser的.Source属性进行数据绑定?我有一个列表视图,我想在左侧有一个小的WebBrowser,在右侧是内容,并希望将每个WebBrowser的源与绑定到列表项的每个对象中的URI进行数据绑定。

到目前为止,这就是我作为概念证明所得到的,但是“ <WebBrowser Source="{Binding Path=WebAddress}"”没有编译。

<DataTemplate x:Key="dealerLocatorLayout" DataType="DealerLocatorAddress">                
    <StackPanel Orientation="Horizontal">
         <!--Web Control Here-->
        <WebBrowser Source="{Binding Path=WebAddress}"
            ScrollViewer.HorizontalScrollBarVisibility="Disabled" 
            ScrollViewer.VerticalScrollBarVisibility="Disabled" 
            Width="300"
            Height="200"
            />
        <StackPanel Orientation="Vertical">
            <StackPanel Orientation="Horizontal">
                <Label Content="{Binding Path=CompanyName}" FontWeight="Bold" Foreground="Blue" />
                <TextBox Text="{Binding Path=DisplayName}" FontWeight="Bold" />
            </StackPanel>
            <TextBox Text="{Binding Path=Street[0]}" />
            <TextBox Text="{Binding Path=Street[1]}" />
            <TextBox Text="{Binding Path=PhoneNumber}"/>
            <TextBox Text="{Binding Path=FaxNumber}"/>
            <TextBox Text="{Binding Path=Email}"/>
            <TextBox Text="{Binding Path=WebAddress}"/>
        </StackPanel>
    </StackPanel>
</DataTemplate>

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2020-05-19

共1个答案

小编典典

问题是那WebBrowser.Source不是一个DependencyProperty。一种解决方法是使用某种AttachedProperty魔术来启用此功能。

public static class WebBrowserUtility
{
    public static readonly DependencyProperty BindableSourceProperty =
        DependencyProperty.RegisterAttached("BindableSource", typeof(string), typeof(WebBrowserUtility), new UIPropertyMetadata(null, BindableSourcePropertyChanged));

    public static string GetBindableSource(DependencyObject obj)
    {
        return (string) obj.GetValue(BindableSourceProperty);
    }

    public static void SetBindableSource(DependencyObject obj, string value)
    {
        obj.SetValue(BindableSourceProperty, value);
    }

    public static void BindableSourcePropertyChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
    {
        WebBrowser browser = o as WebBrowser;
        if (browser != null)
        {
            string uri = e.NewValue as string;
            browser.Source = !String.IsNullOrEmpty(uri) ? new Uri(uri) : null;
        }
    }

}

然后在您的xaml中执行以下操作:

<WebBrowser ns:WebBrowserUtility.BindableSource="{Binding WebAddress}"/>
2020-05-19