Import and Export from Excel using Interop Assemblies

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Hi ,

I am developing an application in vc++ and C# . My Application can import from an excel file (2003,2007 & 2010 ) , for communicating with excel I am using Interop Assemblies . I am able to Import from excel and I am able to transfer to Excel . My Problem is when the user is changing the value in my application and when he is exporting it back to sample excel file instead of adding as a new record it should update the row from where it was imported .

For Example :

I am having a Excel File name "test.xls" which has 100 rows of data and this Excel file is imported to my application . User is updating the values in 10th Row and exporting back to same test.xls . At present this 10th row data will added as new row ie 101 , what I am expecting is instead of adding as new row, it Should modify or update the row 10 is this possible .

Can some one give me sample codes to do this .

Programming environment

Front End : vc++ mfc

Back end for Communicating with Excel : C#

Thanks

Subbu

Posted 8-Mar-11 21:39pm

Subramanian_NV

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SwaxRak · Answer 1 · 2011-03-08T22:42:00

If you are using Datagridview to insert , display and update rows means,
Get the datagridview updated row number and Add 1 . Update the particular row in Excel

int Datagridviewupdatedrow = DataGridViewRowUpdated + 1 

 WorkSheetApp.Cells[Datagridviewupdatedrow, 1] = cell_value_1;
 WorkSheetApp.Cells[Datagridviewupdatedrow, 2] = cell_value_2;
 WorkSheetApp.Cells[Datagridviewupdatedrow, 3] = cell_value_3;

If you give a part of code , then will be helpful to explain more.

Thanks