Adding a specific autofilter on a column
I'm trying to set a filter on a column. This is the way I did it in Interop: private void CheckMasterFile(string path) { var xlApp = new Excel.Application(); var xlWorkbook = xlApp.Workbooks.Open(path); Excel._Worksheet xlWorksheet = xlWorkbook.Sheets[1]; foreach (var project in projects) { if (string.IsNullOrEmpty(project.ProjectID.Value)) { continue; } var xlRange = xlWorksheet.UsedRange; if (xlWorksheet.AutoFilter != null) { xlWorksheet.AutoFilterMode = false; } xlRange.AutoFilter(Field: 2, Criteria1: project.ProjectID.Value); var result = xlRange.SpecialCells(Excel.XlCellType