Question

In the below code, I am trying insert the records from excel to Database table, but an additional column is not passed through the excel, which has to be populated with a constant value(foreach loop with a different value) assigned from the requested page.

string CONSTANTVALUE="Test";
bulkCopy.DestinationTableName = "TABLE NAME";
bulkCopy.ColumnMappings.Add("TABLECOLUMN1", "EXCELCOLUMN1");
bulkCopy.ColumnMappings.Add("TABLECOLUMN2", "EXCELCOLUMN2");
bulkCopy.ColumnMappings.Add("TABLECOLUMN3", CONSTANTVALUE);
bulkCopy.WriteToServer(dr);

But the code doesn’t work. Any ideas?

Answer 1

I assume your dr is a reader of some kind. How is it populated? It may be possible to select a default value into a column and map that. Something like this (sql syntax)

select 
    EXCELCOLUMN1, 
    EXCELCOLUMN2, 
    'ConstantValueFromPage' as EXCELCUSTOM 
from 
    sheet1

Then have:

bulkCopy.ColumnMappings.Add("TABLECOLUMN3", "EXCELCUSTOM");

HTH