Question

I have to search for a value over 5000 records from excel.

What is the best approach to accomplish this in windows .net application?

Answer 1

Since you are trying to search thro’ 5000 records, I assume you must be attempting to search thro’ values. You could use the ‘Range.Find’ from the interop API to do it.

private void OpenExcelFile() {      Excel.Application exlApp = new Microsoft.Office.Interop.Excel.Application();      if (exlApp == null)     {         MessageBox.Show('Excel app object could not be created');     }     else     {          exlFileSelector.FileName = @'*.xls';          if (exlFileSelector.ShowDialog() == DialogResult.OK)         {             Excel.Workbook wrkBook = exlApp.Workbooks.Open(exlFileSelector.FileName, 0, true, 5, '', '', true, Excel.XlPlatform.xlWindows, '\t', false, false, 0, true, true, true);             Excel.Sheets sheetList = wrkBook.Sheets;              Excel.Range search = exlApp.get_Range('A1', 'C5');             search.Find('FindMe', null, Excel.XlFindLookIn.xlValues, Excel.XlLookAt.xlWhole, Excel.XlSearchOrder.xlByRows, Excel.XlSearchDirection.xlNext, false, null, null);          }     } } 

Further reading: How to: Search for Text in Worksheet Ranges