How to change the DataTable Column Name?

Try this:

dataTable.Columns["Marks"].ColumnName = "SubjectMarks";

c# asp.net ado.net datatable

Rename the Column by doing the following:

dataTable.Columns["ColumnName"].ColumnName = "newColumnName";

c# asp.net ado.net datatable

 dtTempColumn.Columns["EXCELCOLUMNS"].ColumnName = "COLUMN_NAME";                         dtTempColumn.AcceptChanges();

CodeHunter