CODEWITHSUNDEEP
c#wpfdatagridcell
Jan Ambrož
Jan Ambrož

Reputation: 31

Wpf datagridcell datacontext wont remain

I would like to manually set DataGridCell´s DataContext over styles like this:

<Style TargetType="DataGridCell" x:Key="DynamicGridCellStyle">               
<Setter Property="DataContext" Value="{x:Null}"/>
</Style>

Then in other place I am setting cell style for all cells in column:

<DataGridTemplateColumn 
csdpp:CalendarProperties.EnumDay="Tue"
HeaderStyle="{StaticResource DayHeaderStyle}"
CellStyle="{StaticResource DynamicGridCellStyle}">
</DataGridTemplateColumn>

In real there is not x:Null, but some binding, but it doesnt matter, problem remains with x:Null too.

Problem is: after this is called at start, DataGridCell´s DataContexts are different then null. Something is just changing them.

Is there any way how to catch what? I was looking for DataContextChanged event, but that leads just to next heavy code. Or how is that even possible? I have DataGridCell inside DataGrid connected to CollectionViewSource, could be problem there? Could CollectionViewSource change DataGridCell DataContext?

Upvotes: 1

Views: 671

Answers (1)

Jan Ambrož
Jan Ambrož

Reputation: 31

In the end I solved this by adding attached dependency property to DataGridCell to store custom data objects. This solution allows me to use DataGridCell DataContext inherited from parents too.

Upvotes: 0

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