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This binding
<tk:DataGridTextColumn Binding="{Binding Path=Id, Mode=OneWay}"
Header="Sale No." Width="1*" />
Gives this error
A TwoWay or OneWayToSource binding
cannot work on the read-only property
‘Id’ of type . . .
The “Id” property is indeed readonly, I thought though that Mode=OneWay would be sufficient.
I’m tired and I know I’m missing something obvious so I’ll apologies now for asking a really dumb question.
Thanks
BW
If I recall correctly, I think that the DataGridTextColumn stomps on your Binding.Mode when it generates the editing element because the column itself still defaults to being read/write if the DataGrid is editable. Try setting IsReadOnly=”true” on the DataGridTextColumn.