Image Binding?

[ducksunlimited]

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

<esri:FeatureLayer.OutFields>
        <sys:String>ProjectID</sys:String>
</esri:FeatureLayer.OutFields>

<esri:FeatureLayer.MapTip>
    <StackPanel Margin="7">
            <Image x:Name="OverviewImage" Source=???Images/???+ProjectID+???.png???></Image>
    </StackPanel>                   
</esri:FeatureLayer.MapTip>

[JenniferNery]

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)); 

[ducksunlimited]

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)); 

[dotMorten_esri]

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