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SummaryDefinition not updating the sum right away for a bool value
posted

I have a datagrid with the following SummaryDefinition

<igDP:XamDataGrid.FieldLayouts>

<igDP:FieldLayout>

<igDP:FieldLayout.SummaryDefinitions>

<igDP:SummaryDefinition Key="idp_count" SourceFieldName="IsSelected" Calculator="Sum" StringFormat="{}{0}"/>

 

now, all this is doing is trying to get the count of the selected items...  So in my grid, i have a list with check boxes, and each time i check one, i want the count at the bottom to go up... works great, but its always one off...

for instance... load the grid, sum=0, check first box, sum=0, check second box sum=1, check third sum=2.  Now, once i get out of the grid, it updates to the correct sum, but not until i get out.  Is there any way to force this to update properly in an event handler?

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