Default Images
RadOrgChart has default profile image for GroupItems, which appears in case, there isn't an ImageUrl set for the GroupItem, but can easily be changed or even disabled.
How to change the default image?
In case you would like to use a different default image(for example special image applied to all GroupItems), you can change it by setting the DefaultImageUrl property of RadOrgChart.
Here is an example:
<telerik:RadOrgChart RenderMode="Lightweight" runat="server" ID="RadOrgChart1" DefaultImageUrl="/newDefaultImage.png">
</telerik:RadOrgChart>
Is there a limitation in terms of sizes for DefaultImageUrl?
The images for GroupItems are limited to 48x48 pixels.This means that even setting ImageUrl on a GroupItem should follow the same standard.
How to disable the default image?
If you don't need a default image to appear, you can disable it by setting the DisableDefaultImage property of RadOrgChart.
Here is an example:
<telerik:RadOrgChart RenderMode="Lightweight" runat="server" ID="RadOrgChart1" DisableDefaultImage="true">
</telerik:RadOrgChart>