To handle this error, I've generated FieldAccessing Event for all fields.

But the code that event is fired comes after the code that column is accessed. So, I couldn't handle this condition. I'm trying to catch property access, check column if exist. If column does not exist then column will be added to the table.

Is there alternative way to accomplish tis type of requirement ? 

object loValue;

CompaniesFieldAccessingEventArgs e;

System.String loReturn;

loValue = this.CurrentRow["name"];

if (loValue == DBNull.Value)

{

loReturn = String.Empty;

}

else

{

loReturn = (System.String)loValue;

}

e = new CompaniesFieldAccessingEventArgs(CompaniesFieldNames.name, loReturn);

this.OnFieldPropertyAccessing(this, e);

return (System.String)e.ValueToReturn;

Any comment ?

This depends entirely on your code.  When I have this issue, and depending on how I may use it, I may include this in the AfterAddNew or the CurrentDataTableRefilled event...it depends entirely on what you are trying to accomplish...I am not sure how to give you a straight answer on this without digging into your code.