在ASP.NET MVC4中显示Word / Excel文件内容

Question

I'm beginner in ASP.net MVC4 . And I'm trying to display the content of the word and excel file in my web page. I wrote this function in the HomeController , but it didn't display the content. it only downloaded the file. how can I preview the file in my webpage? Thanks

[HttpGet]
public FileResult downloadFile()
{
  byte[] fileBytes = System.IO.File.ReadAllBytes("J:\\asp.net\\ViewInformation\\ViewInformation\\Content\\book.xlsx");
  return File(fileBytes, "application/vnd.ms-excel", "book.xlsx");
}

Answer 1

In the past I used Microsoft.Office.Interop.Excel.Application.

excelApp = new Microsoft.Office.Interop.Excel.Application();
excelApp.Workbooks.Open(filePath);

Then access cells like so:

int newId = Convert.ToInt32(values[i, GetColumnPosition(newIdColumn)]);
int oldId = Convert.ToInt32(values[i, GetColumnPosition(oldIdColumn)]);

Where

public static int GetColumnPosition(char alpha)
{
  return char.ToUpper(alpha) - 64;
}

and

private const char oldIdColumn = 'F';
private const char newIdColumn = 'A';

Some resources:

• http://www.dotnetperls.com/excel
• https://msdn.microsoft.com/en-us/library/dd264733.aspx