Strange Double Values in GraphicAttributesColumn DataGrid

[UlfGrimhardt]

Hi

i use a DataGrid with GraphicAttributesColumn to show the results of a spatial query in Silverlight. Works Fine, but if the Attribute consists of DOUBLE Values the Values appear unrounded (1.19999999) even if the "real" value is 1.2. The Strange thing is that this doesn't appear for every feature. I checked the values of the features in ArcCatalog and with the Identify Feature and the values are normal (e.g. 1.2)

[ATTACH=CONFIG]21292[/ATTACH]

Any Idea whats going wrong?

Thanks in advance!