code for read Excel file in C#

Question

Hello All I am the Beginner in C#. i want code for read Excel file in C#. in Excel file read based on the key Vale(key value means one column). Please Help me. Thanks

Kailash Chandra Behera · Answer

Hi Hareesh below code will help you. public class MyExcel { public Microsoft.Office.Interop.Excel.Application APP = null; public Microsoft.Office.Interop.Excel.Workbook WB = null; public Microsoft.Office.Interop.Excel.Worksheet WS = null; public Microsoft.Office.Interop.Excel.Range Range = null; public MyExcel() { if (this.APP == null) { this.APP = new Microsoft.Office.Interop.Excel.Application(); this.APP.DisplayAlerts = false; this.APP.WorkbookBeforeClose += APP_WorkbookBeforeClose; } } public Microsoft.Office.Interop.Excel.Workbook Open(string Location) { try { this.WB = this.APP.Workbooks.Open(Location 0 false 5   false Microsoft.Office.Interop.Excel.XlPlatform.xlWindows  true false 0 true false false); this.WS = this.WS = (Microsoft.Office.Interop.Excel.Worksheet)WB.Sheets[1]; this.APP.Visible = true; // this.WS.Change += APP_SheetChangeEvent; // this.APP.SheetChange += Event_ChangeEvent; return this.WB; } catch (Exception ex) { throw ex; } } public object GetCellValue(string ColumnName) { try { if (this.WS != null) { Thread.Sleep(50); Microsoft.Office.Interop.Excel.Range RG = this.WS.get_Range(ColumnName ColumnName); // string add = RG.Address[1 1 Microsoft.Office.Interop.Excel.XlReferenceStyle.xlA1]; return RG.Value; } else return null; } catch (Exception ex) { MessageBox.Show(ex.Message); throw ex; } } public void Close() { if (this.APP != null) { if (this.WB != null) { if (this.WS != null) Marshal.ReleaseComObject(this.WS); this.WB.Close(false Type.Missing Type.Missing); Marshal.ReleaseComObject(this.WB); } this.APP.Quit(); Marshal.ReleaseComObject(this.APP); } } if this helps you kindly mark as answer Thanks Kailash