Unable to compare the columns in SqlBulkCopy

Question

Here is my code:

 protected void Button1_Click(object sender, EventArgs e)
 {
    string strFileType = System.IO.Path.GetExtension(FileUpload1.FileName).ToString         


        

Answer 1

The column mappings are to be added to the bulkCopy.ColumnsMappings collection:

var mapping1 = new SqlBulkCopyColumnMapping("id", "ida");
bulkCopy.ColumnMappings.Add(mapping1);

You do the mapping before you execute the WriteToServer call.

The MSDN documentation of SqlBulkCopyColumnMapping has further documentation and an example.