How to resove the Issue of data exporting to an excel sheet when deployed in IIS server?

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How to resove the Issue of data exporting to an excel sheet when deployed in IIS?
I am using asp.net with c#. I want to populate data from datatable to an existing excel template. Its working fine iin local server but not in IIS. I am getting the following error:
System.UnauthorizedAccessException: Retrieving the COM class factory for component with CLSID {00024500-0000-0000-C000-000000000046} failed due to the following error: 80070005 Access is denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED)).

Posted 1-Jan-15 5:44am

Kandiya

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PIEBALDconsult · Answer 1 · 2015-01-01T05:50:00

Solution 1

I use the ACE engine with OleDb to write to Excel: Simplified Database Access via ADO.NET Interfaces[^]

I avoid interop.

Posted 1-Jan-15 5:50am

PIEBALDconsult

Comments

Kandiya 2-Jan-15 4:06am

I want to use Interop dll itself. My code is as follows:
Microsoft.Office.Interop.Excel.Application xla = new Microsoft.Office.Interop.Excel.Application();
Excel.Workbook vb = (Excel.Workbook)(xla.Workbooks._Open(ExcelFilePath, System.Reflection.Missing.Value,
System.Reflection.Missing.Value, System.Reflection.Missing.Value, System.Reflection.Missing.Value,
System.Reflection.Missing.Value, System.Reflection.Missing.Value, System.Reflection.Missing.Value,
System.Reflection.Missing.Value, System.Reflection.Missing.Value, System.Reflection.Missing.Value,
System.Reflection.Missing.Value, System.Reflection.Missing.Value)); // open the existing excel file

int numberOfWorkbooks = xla.Workbooks.Count; // get number of workbooks (optional)

Excel.Worksheet ws = (Excel.Worksheet)xla.Worksheets[1];

xla.Visible = true;

for (int i = 0; i < dt.Rows.Count; i++)
{
ws.Cells[ExcelRowCnt, 1] = dt.Rows[i]["SRNo"].ToString();
ws.Cells[ExcelRowCnt, 2] = dt.Rows[i]["CSDReceivedDate"].ToString();
ws.Cells[ExcelRowCnt, 3] = dt.Rows[i]["UNBBankName"].ToString();
ws.Cells[ExcelRowCnt, 4] = dt.Rows[i]["CustomerName"].ToString();
ws.Cells[ExcelRowCnt, 5] = dt.Rows[i]["Gender"].ToString();
ws.Cells[ExcelRowCnt, 6] = dt.Rows[i]["PolicyNo"].ToString();
ws.Cells[ExcelRowCnt, 7] = dt.Rows[i]["PlanName"].ToString();
ws.Cells[ExcelRowCnt, 8] = dt.Rows[i]["SumAssured"].ToString();
ws.Cells[ExcelRowCnt, 9] = dt.Rows[i]["PolicyTerm"].ToString();
ws.Cells[ExcelRowCnt, 10] = dt.Rows[i]["Currency"].ToString();
ws.Cells[ExcelRowCnt, 11] = dt.Rows[i]["AnnualPremium"].ToString();
ws.Cells[ExcelRowCnt, 12] = dt.Rows[i]["NextPremiumThrough"].ToString();
ws.Cells[ExcelRowCnt, 13] = dt.Rows[i]["CustomerDocuments"].ToString();
ws.Cells[ExcelRowCnt, 14] = dt.Rows[i]["SubmissionDate"].ToString();
ws.Cells[ExcelRowCnt, 15] = dt.Rows[i]["Actions"].ToString();
ws.Cells[ExcelRowCnt, 16] = dt.Rows[i]["Remarks"].ToString();
ws.Cells[ExcelRowCnt, 17] = dt.Rows[i]["Date"].ToString();

ExcelRowCnt = ExcelRowCnt + 1;

}

// CLEAR the Excel Application Objects

//xla.Workbooks.Close();
xla.Quit();
xla = null;
ws = null;

PIEBALDconsult 2-Jan-15 9:52am

Interop sucks; don't use it.