I have created :

<Style.Triggers>
 <MultiDataTrigger>
<MultiDataTrigger.Conditions>
<Condition Value="False">
<Condition.Binding>
<PriorityBinding>
<Binding Path="DataItem.value1" />
</PriorityBinding>
</Condition.Binding>
</Condition>
</MultiDataTrigger.Conditions>
<Setter Property="TextBlock.Foreground" Value="#727272"/>
<Setter Property="TextBlock.FontStyle" Value="Italic"/>
</MultiDataTrigger>
</Style.Triggers>

and also have set XAMDataGrid have set HighlightAlternateRecords="False".

-----------

All the records are with DataItem.value1 = False.

But still the rows in grid are with alternate style 

1. one with Black 

2. and others with style mentioned above.

Any fix for this issue.

even the HighlightAlternateRecords="False". not taking effect.