Windows Phone 8 imagebrush获取路径

Question

i have this code

 <Grid Width="160" x:Name="grd">
                        <Grid.Background>
                            <ImageBrush x:Name="img"  ImageSource="Assets/Icons/tab-inactive.png" />
                        </Grid.Background>
                        <TextBlock x:Name="txtacticve" Text="Rating" Tap="TextBlock_Tap_1" />
                    </Grid>

while tapping the textblock the tap event will be called.how can i get the complete path of the imagesource in this tap event in code behind? i am really at the lost here how to get to the imagesource in my codebehind event.

Answer 1

One solution could be the following one :

In your XAML code, you can bind your TextBlock.Tag property to the Grid.Background property you need. It could be useful to do it in XAML rather than code behind if your Grid is not the first parent (no need to find the required parent with recursive C# code) :

  <Grid Width="160" x:Name="grd">
        <Grid.Background>
            <ImageBrush x:Name="img"  ImageSource="Assets/Icons/tab-inactive.png" />
        </Grid.Background>
        <TextBlock x:Name="txtacticve" Text="Rating" Tap="TextBlock_Tap_1" Tag="{Binding ElementName=grd, Path=Background}" />
    </Grid>

Then in your code behind, you just have to cast and use the TextBlock.Tag property that way :

 private void TextBlock_Tap_1(object sender, System.Windows.Input.GestureEventArgs e)
 {
    var textBlock = sender as TextBlock;
    if (textBlock != null)
    {
        var test = ((BitmapImage)((ImageBrush)textBlock.Tag).ImageSource).UriSource.OriginalString;
    }
 }

Answer 2

Try this.

private void TextBlock_Tap_1(object sender, System.Windows.Input.GestureEventArgs e)
{
    var grid = (Grid)txtacticve.Parent;
    var img = grid.Background;
    var path = ((BitmapImage)(((ImageBrush)(img)).ImageSource)).UriSource.AbsolutePath;
}