Search code examples
c#.netfilehelpers

Why does the returned DataTable has readonly columns in FileHelpers


I am wondering why filehelpers return readonly columns.

I had a huge problem with them not updating values and could not figure out why. Now I have to have another loop to go through all the columns and change them to be not readonly.

Is there a way I can tell Filehelpers to not do this? So I don't have to waste time going through all of it again?


Solution

  • The FileHelpers class RecordOperations.CreateEmptyDataTable() method is responsible for this and it is not virtual.

    I think the reason might be that it is similar to using a normal DataReader via DataTable.Load(IReader) which would also create readonly rows.

    However, it is easy to fix by going through the columns instead of the rows:

    foreach (DataColumn col in dt.Columns) 
        col.ReadOnly = false;