如何将Excel文件保存在特定的文件夹中

Question

I am exporting excel file from database using following method.But i have one problem when i am exporting excel file than it is automatically downloading to download folder and i don't want this to be happen,I want my excel file to be downloaded in my project folder

var formsection = from fs in db.FormSections
                  join form in Form on fs.FormId equals form.FormId
                  select fs;
XLWorkbook wb = new XLWorkbook();              
string sheetName = "ARTICLE"; //Give name for export file.               

var Fs = wb.Worksheets.Add("FORMSECTION");
Fs.Cell(2, 1).InsertTable(formsection.ToList());// assign list here.
HttpContext.Response.Clear();
HttpContext.Response.ContentType = "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet";
HttpContext.Response.AddHeader("content-disposition", String.Format(@"attachment;filename={0}.xlsx", sheetName.Replace(" ", "_")));
var filePath = Path.Combine(Server.MapPath("~/Content"));
using (MemoryStream memoryStream = new MemoryStream())
{                  
    wb.SaveAs(memoryStream);                     
    memoryStream.WriteTo(HttpContext.Response.OutputStream);
    memoryStream.Close();
}               
HttpContext.Response.End();

Answer 1

Here is an example that converts a datatable to a .csv file and save the file to the folder of your project for me its store the file in Domestic folder as the path given by me.

private void test(DataTable dt1) {

    string csv = string.Empty;

    foreach (DataColumn column in dt1.Columns)
    {
        //Add the Header row for CSV file.
        csv += column.ColumnName + ',';
    }

    //Add new line.
    csv += "\r\n";

    foreach (DataRow row in dt1.Rows)
    {
        foreach (DataColumn column in dt1.Columns)
        {
            //Add the Data rows.
            csv += row[column.ColumnName].ToString().Replace(",", ";") +',';
        }

        //Add new line.
        csv += "\r\n";
    }

    string datetime = Convert.ToString(DateTime.Today.ToString("dd-MM-yyyy")).Trim();
    string filepath = "C:\\Users\\Prateek\\Desktop\\MMR New  27-07 -\\Domestic\\";
    string filename= @"BILLING_BOOK_NO" + "_4005" + "_"+datetime+".CSV";
    string combinepath = filepath + filename;          
   System.IO.File.WriteAllText(combinepath,csv);
}`

Answer 2

You need to write the excel to your server first.

wb.SaveAs(filePath);
//encrypt the file
Encrypt(filePath);
using (FileStream file = new FileStream(filePath, FileMode.Open, FileAccess.Read))
{
    using (MemoryStream memoryStream = new MemoryStream())
    {
        byte[] bytes = new byte[file.Length];
        file.Read(bytes, 0, (int)file.Length);
        memoryStream.Write(bytes, 0, (int)file.Length);
        memoryStream.WriteTo(HttpContext.Response.OutputStream);
    }
}

Answer 3

use code as below

    public void ImportXLX()
        {

string filePath = string.Format("{0}/{1}", Server.MapPath("~/Content/UploadedFolder"), @"C:\Users\Vipin\Desktop\Sheets\MyXL6.xlsx");
                    if (System.IO.File.Exists(filePath))
                        System.IO.File.Delete(filePath);
                    Request.Files["xlsFile"].SaveAs(filePath);
                    Microsoft.Office.Interop.Excel.Application app = new Microsoft.Office.Interop.Excel.Application();
}