I have developed the code. It worked for 2 to 3 months excellent. now i am getting an error.
I have to read the excel file which has 2 columns in sheet1 …
Then add the data columns. I have added them in the code.
Well whats happening is the error i am getting it says - these columns are already present …
Processing the data to no has Problem A column named ‘Number’ already belongs to this DataTable.
Well now in the excel u can see the columns are present… If i delete it also i am getting the same error
**sm.xaml (44.7 KB) **
I am pasting the code
But its giving me