[Solved] Sorting RadGrid by image in GridViewImageColumn

[Justin]

I have a Telerik Silverlight RadGrid and one of the columns is a GridViewImageColumn. There are only 3 different images ever present in the column and they are relative to the media type that the row represents. I am trying to create a sort such that when you click on the Image Column Header, it reorders the rows into groups using these images. Is there a simple way to achieve this sort/grouping in the code-behind?

Any help is greatly appreciated.

-Justin

[Ivan Ivanov]

Hello Justin,

I have prepared an example projects that accomplishes this task. Please, refer to it.

All the best,
Ivan Ivanov
the Telerik team

[Justin]

Thank You Ivan,

    This is exactly what I am looking for as far as sorting is concerned, however one thing that i forgot to mention (my appologies) is that the 3 images are set through an ImageConverter:

<telerik1:GridViewImageColumn Header="Type" DataMemberBinding="{Binding aFile.Name, Converter={StaticResource ImageConverter}}" ImageStretch="None"/>

and the list of possible file names is essentially a FlashFile, 7 Image Types, and 6 Video Types. These being my 3 categories.

    Is there a way to set the SortMemberPath equal to the image returned by that converter, or will i instead need functionality to "look up" which image that would be?

Thanks Again,

--Justin

[Ivan Ivanov]

Hi Justin,

In order to sort a set of elements, you have to be able to compare them, so that the property that is refered as a SortMemberPath has to be of a type that implements IComparable. Since there is no default way of comparing images, setting the image property as a SortMemberPath won't be possible in this case. Please, have a look at this forum thread, it deals with a similar scenario and might prove useful. 

Greetings,
Ivan Ivanov
the Telerik team