Question

I am trying to apply the same kind of idea explaind on this question ContextMenu on tap instead of tap and hold to my application using button control.

但是,在执行以下守则时,我有<条码>。

<Button Content="Menu" Margin="0,0,316,699" Grid.Row="1" x:Name="MenuButton" >
    <toolkit:GestureService.GestureListener>
        <toolkit:GestureListener Tap="GestureListener_Tap" />
    </toolkit:GestureService.GestureListener>
    <toolkit:ContextMenuService.ContextMenu>
        <toolkit:ContextMenu>
            <toolkit:MenuItem Header="Add to Favorite"  Click="AddFavorite_Click"/>
            <toolkit:MenuItem Header="Samples"  Click="Samples_Click"/>
            <toolkit:MenuItem Header="Send to friends"  Click="SendToFriends_Click"/>
            <toolkit:MenuItem Header="Links"  Click="Links_Click"/>
        </toolkit:ContextMenu>
    </toolkit:ContextMenuService.ContextMenu>
</Button>

private void GestureListener_Tap(object sender, Microsoft.Phone.Controls.GestureEventArgs e)
{
    Button button = sender as Button;
    ContextMenu contextMenu = ContextMenuService.GetContextMenu(button);

    if (contextMenu.Parent == null)
    {

        contextMenu.IsOpen = true;
    } 
}

实际上,仅仅使用边界控制样本代码就给我同样的<条码>。下面是我例外获得的 st。

at Microsoft.Phone.Controls.ContextMenu.UpdateVisualStates(Boolean useTransitions)

at Microsoft.Phone.Controls.ContextMenu.OnOpened(RoutedEventArgs e)

at Microsoft.Phone.Controls.ContextMenu.<OpenPopup>b__12(Object s, EventArgs e)

at MS.Internal.CoreInvokeHandler.InvokeEventHandler(Int32 typeIndex, Delegate handlerDelegate, 
Object sender, Object args)

at MS.Internal.JoltHelper.FireEvent(IntPtr unmanagedObj, IntPtr unmanagedObjArgs, Int32 argsTypeIndex, Int32 actualArgsTypeIndex, String eventName)

谁能帮助我如何使守则发挥作用? 我对“Windows Telephone apping”非常新,因此任何帮助都将受到赞赏。

Answer 1

这里的问题。

这部法典造成了::

private void UpdateVisualStates(bool useTransitions) 
[..]
_outerPanel.Orientation = Orientation.Vertical;

此时此刻,未打电话到OnApplyTemplate (),因此,_outer Pane l 无效。

如果这一问题无效并重整工具包,就可以解决这一问题。

遗憾的是,微软拒绝设置

...... Stefan

Answer 2

我建议两点:

(1) 银灯工具包第7.1条有点,因此,在把环境从除举行活动以外的任何东西中划出时,你会例外。

<Button Content="Menu" Margin="0,0,316,699" Grid.Row="1" x:Name="MenuButton" Hold="MenuButton_Hold"/>

    <toolkit:ContextMenuService.ContextMenu>
        <toolkit:ContextMenu>
            <toolkit:MenuItem Header="Add to Favorite"  Click="AddFavorite_Click"/>
            <toolkit:MenuItem Header="Samples"  Click="Samples_Click"/>
            <toolkit:MenuItem Header="Send to friends"  Click="SendToFriends_Click"/>
            <toolkit:MenuItem Header="Links"  Click="Links_Click"/>
        </toolkit:ContextMenu>
    </toolkit:ContextMenuService.ContextMenu>

C# code is ok as it is just copy it to the hold event

2) 您必须把背景菜单放在纽子的方括号中,再回到7个银灯箱。

<Button Content="Menu" Margin="0,0,316,699" Grid.Row="1" x:Name="MenuButton" Click="MenuButton_Click"/>

    <toolkit:ContextMenuService.ContextMenu>
        <toolkit:ContextMenu>
            <toolkit:MenuItem Header="Add to Favorite"  Click="AddFavorite_Click"/>
            <toolkit:MenuItem Header="Samples"  Click="Samples_Click"/>
            <toolkit:MenuItem Header="Send to friends"  Click="SendToFriends_Click"/>
            <toolkit:MenuItem Header="Links"  Click="Links_Click"/>
        </toolkit:ContextMenu>
    </toolkit:ContextMenuService.ContextMenu>

友情链接