c# - "'EditItem' is not allowed for this view" while I am using ExpandoObject as the row of datagrid in WPF -


I am trying to use expandoObject as a line for the datagrid in WPF I am

And I think that until the cell is not edited it works fine.

Here is the core code: 

  ExpandoObject line = new ExpandoObject (); ((Id works & lt; string, object & gt;) line). Add (strale column, strue); Dg.Items [0] = Row;   
 The datagrid can display the line correctly, but if I click on the cell to edit it, then I get the error  
  'EditItem' is not allowed for this view "will be displayed .   
 
 
 ¼ ?? I know what's wrong with it. We should use it: dg.ItemSources = new dynamic [] {expandoObject}  
 And it works now!  
 What a stupid boy!

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