Image Binding?

Question

HI, I want to bind images for maptips based on featurelayer.output values. How to set the binding in the Image control? Thanks in advance ProjectID

SomeGISGuy · Answer

I think you can use a string format in the binding too to accomplish that.
Ex:
Source="{Binding Binding [ProjectID], StringFormat=Images/{{0}}}"

ducksunlimited · Answer

Thanks for your reply!
Can you provide further assisitance to tell me where to construct the imageConverter? Image Source property expects a BitmapImage. If your image URL still need to be formed from a graphic attribute, you can create your own image converter that will do this type of extra handling.

In your MapTip, you can do:
XAML
<Image x:Name="OverviewImage" Source="{Binding [ProjectID], Converter={StaticResource imageConverter}}" />

Provided you have an ImageConverter that performs this conversion from string to BitmapImage
string imageUrl = string.Format("Images/{0}.png�?�, value);
return new BitmapImage(new Uri(imageUrl , UriKind.Relative));

JenniferNery · Answer

Image Source property expects a BitmapImage. If your image URL still need to be formed from a graphic attribute, you can create your own image converter that will do this type of extra handling.

In your MapTip, you can do:
XAML
<Image x:Name="OverviewImage" Source="{Binding [ProjectID], Converter={StaticResource imageConverter}}" />

Provided you have an ImageConverter that performs this conversion from string to BitmapImage
string imageUrl = string.Format("Images/{0}.png�?�, value);
return new BitmapImage(new Uri(imageUrl , UriKind.Relative));