Hi , I am stuck on this urgent problem. Thank you for the sample in http://ko.infragistics.com/community/forums/p/97084/490034.aspx#490034

 I have my chart in my XAML all set up with the code u gave. However my data is not present at the beginning . I get the data after clicking a button and fetch and assign it to my stackedColumnChart  .

var data = ( TestEmissionsCollection)FindResource("data"); data.Clear(); data.AddRange(model.GetData());

This block gets fired at every button click .  Rest of the code i am using is the same as the original post.

When I added the multibinding option to be able to get the Tool tip , that line crashes when I load the UI because the data is not available till the button click.

<MultiBinding Converter="{StaticResource ValueFromMemberPath}">

this line crashes with XamlParseException :

Provide value on 'System.Windows.StaticResourceExtension' threw an exception.' Line number '56' and line position '38'.

How can I disable the tooltip till I fetch the data ?

Regards,

Prasaanth