Question

我的Windows Phone 7应用程序中有一些页面，里面有很多文本框。正如我们所知，Windows Phone 7的默认行为是，当我们专注于任何文本框时，SIP键盘会出现并向上滑动整个页面并在失去焦点时恢复到正常状态。我想在我的应用程序中限制这个东西。正如我用Google搜索并找到解决方案一样，我们将所有控件放在scrollviewer中，并将焦点设置为textbox设置滚动查看器veritcal offset到该文本框的位置。

现在我很困惑如何告诉滚动查看器关于垂直偏移的控制位置。
并假设如果我可以设置该内容，我需要为我的文本框on GotFocus和On LostFocus调用两种方法。有没有其他方法可以通过交互行为和触发器来调用这个东西。

更新......

<Grid x:Name="LayoutRoot" Background="Transparent">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>

        <!--TitlePanel contains the name of the application and page title-->
        <StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,17,0,28">
            <TextBlock x:Name="ApplicationTitle" Text="MY APPLICATION" Style="{StaticResource PhoneTextNormalStyle}"/>
            <TextBlock x:Name="PageTitle" Text="page name" Margin="9,-7,0,0" Style="{StaticResource PhoneTextTitle1Style}"/>
        </StackPanel>

        <!--ContentPanel - place additional content here-->
        <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
            <Grid.RowDefinitions>
                <RowDefinition Height="480" />
                <RowDefinition Height="*" />
            </Grid.RowDefinitions>
            <ScrollViewer x:Name="sc">
                <StackPanel>
                    <Grid x:Name="Grid1" Grid.Row="0">
            <Grid.RowDefinitions>
                <RowDefinition Height="80" />
                <RowDefinition Height="80" />
                <RowDefinition Height="80" />
                <RowDefinition Height="80" />
                <RowDefinition Height="80" />
                <RowDefinition Height="80" />
            </Grid.RowDefinitions>
                    <TextBox Width="460" AcceptsReturn="True" Grid.Row="0" x:Name="txtbox1"/>
                    <TextBox Width="460" AcceptsReturn="True" Grid.Row="1" x:Name="txtbox2"/>
                    <TextBox Width="460" AcceptsReturn="True" Grid.Row="2" x:Name="txtbox3"/>
                    <TextBox Width="460" AcceptsReturn="True" Grid.Row="3" x:Name="txtbox4"/>
                    <TextBox Width="460" AcceptsReturn="True" Grid.Row="4" x:Name="txtbox5"/>
                    <TextBox Width="460" AcceptsReturn="True" Grid.Row="5" x:Name="txtbox6" GotFocus="txtbox6_GotFocus"/>
            </Grid>
                </StackPanel>
            </ScrollViewer>
            <Grid x:Name="Grid2" Grid.Row="1">
                <Grid.RowDefinitions>
                    <RowDefinition Height="80" />
                </Grid.RowDefinitions>
                <Button x:Name="btnTest" Width="250" Content="Test" Grid.Row="0" />
            </Grid>
        </Grid>
    </Grid>

AND CS C＃....

void ScrollToFocused(ScrollViewer scrollviewer)
{
    FrameworkElement focusedElement = FocusManager.GetFocusedElement() as FrameworkElement;
    // verify focused control is a child of the ScrollViewer 
    if (scrollviewer != null && focusedElement != null && IsVisualChild(scrollviewer, focusedElement))
    {
        GeneralTransform focusedVisualTransform = focusedElement.TransformToVisual(scrollviewer);
        Rect rectangle = focusedVisualTransform.TransformBounds(new Rect(new Point(focusedElement.Margin.Left, focusedElement.Margin.Top), focusedElement.RenderSize));
        double newOffset = scrollviewer.VerticalOffset + (rectangle.Bottom - scrollviewer.ViewportHeight);
        scrollviewer.ScrollToVerticalOffset(newOffset);
    }
}

bool IsVisualChild(DependencyObject element, DependencyObject searchChildElement)
{
    if (element == searchChildElement)
        return true;
    // recursively process nested children in the visual tree 
    int children = VisualTreeHelper.GetChildrenCount(element);
    for (int i = 0; i < children; i++)
    {
        DependencyObject child = VisualTreeHelper.GetChild(element, i);
        if (IsVisualChild(child, searchChildElement))
            return true;
    }
    return false;
}

private void txtbox6_GotFocus(object sender, RoutedEventArgs e)
{
    txtbox6.Focus();
    ScrollToFocused(sc);
}

但结果相同...... 非常感谢您的帮助。

Answer 1

这是因为你的网格高度有限。

更改通过高度=“600”为网格提供一些高度。可能是600或超过600.it取决于您的页面。试试这个。我可以使用此解决方案解决我的问题

出现在SIP键盘上设置垂直偏移

1 个答案: