![](/img/trans.png)
[英]how to access the grid control name inside the datatemplate in code behind c#
[英]C# Windows Phone access image control inside DataTemplate from code
我想从代码中访问LongListSelector DataTemplate中有一个名为“ imgGameList”的图像控件,但无法从代码中找到该控件。
我的LongListSelector和我的图像控件:
<phone:LongListSelector Name="llsGameList" ItemsSource="{Binding}" Tap="llsGameList_Tap" Margin="0,90,0,0">
<phone:LongListSelector.ItemTemplate>
<DataTemplate>
<Grid>
<Image Name="imgGameList" Margin="0,10,0,10" Stretch="Fill" HorizontalAlignment="Left" VerticalAlignment="Top" Height="200" Width="150">
<Image.Source>
<BitmapImage UriSource="{Binding BoxArtFrontThumb}"
CreateOptions="BackgroundCreation" DecodePixelHeight="200" DecodePixelWidth="150" />
</Image.Source>
</Image>
</Grid>
</DataTemplate>
</phone:LongListSelector.ItemTemplate>
</phone:LongListSelector>
之所以尝试访问图像控件,是因为我面临着与此相关的内存问题,并且想对其应用gleb.kudr修复程序: 为什么在ListBox中有图像时为什么会出现OutOfMemoryException?
我希望有人可以帮助我。 谢谢。
public FrameworkElement SearchVisualTree(DependencyObject targetElement, string elementName)
{
FrameworkElement res = null;
var count = VisualTreeHelper.GetChildrenCount(targetElement);
if (count == 0)
return res;
for (int i = 0; i < count; i++)
{
var child = VisualTreeHelper.GetChild(targetElement, i);
if ((child as FrameworkElement).Name == elementName)
{
res = child as FrameworkElement;
return res;
}
else
{
res = SearchVisualTree(child, elementName);
if (res != null)
return res;
}
}
return res;
}
用法:
Image image = SearchVisualTree(listItem, "imgGameList") as Image;
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.