Question

我使用以下方法从数据库导出excel文件。但是我在导出excel文件时有一个问题，而不是自动下载到下载文件夹，我不希望这种情况发生，我想要我的excel文件可以在我的项目文件夹中下载

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

这是一个将数据表转换为.csv文件并将文件保存到项目文件夹的示例，它将文件存储在Domestic文件夹中作为我给出的路径。

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

您需要先将excel写入服务器。

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

使用以下代码

    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();
}

如何在特定文件夹中保存Excel文件

3 个答案: