asp.net – MVC 4导出到CSV – 另存为对话框在Chrome和Firefox中不起作用

我正在尝试使用打开/保存选项将csv文件导出到用户.

我的问题是类似于how-to-force-chrome-to-open-an-open-file-dialog-when-downloading-a-file-via-as(它正在Chrome和Firefox中下载文件),我尝试了@Dev建议的解决方案,但它无法正常工作.

我编写了如下代码： –

return File(new System.Text.UTF8Encoding().GetBytes(csvData),"text/csv",filename);

但是,它无法在Chrome中运行.默认情况下会下载该文件.

然后在谷歌搜索后,我找到了returning-a-file-to-view-download-in-mvc,我试图做下面的事情： –

var csvData = "hello";// I am filling this variable with,y values from DB!
    var cd = new System.Net.Mime.ContentDisposition
    {
        // for example foo.bak
        FileName = "test",Inline = false,};
    Response.AppendHeader("Content-Disposition",cd.ToString());
    return File(new System.Text.UTF8Encoding().GetBytes(csvData),"text/csv");

但它仍然是在Chrome中下载文件.然后我遇到了how-to-display-open-save-dialog-asp-net-mvc-4,其中@JooSimes提到： –

That is browser dependent. If you set to download automatically to a
given folder,the browser will download automatically. Firefox and
Chrome are some browsers with this behavior. – Joo Simes Jan 3 at
13:09

如果以上是真的,那么我怎样才能克服我的问题呢？如何进行打开/保存对话？
我无法使用打开/保存选项导出我的CSV.

编辑1

我试图做这样的事情(得到它here)： –

public class ExcelResult : ActionResult
    {
        public string FileName { get; set; }
        public string Path { get; set; }
        public string Data { get; set; }

        public override void ExecuteResult(ControllerContext context)
        {
            context.HttpContext.Response.Buffer = true;
            context.HttpContext.Response.Clear();
            context.HttpContext.Response.AddHeader("content-disposition","attachment;     filename=" + FileName);
            context.HttpContext.Response.ContentType = "text/csv";
            context.HttpContext.Response.Write(new System.Text.UTF8Encoding().GetBytes(Data));
        }
    }

和我的控制器代码： –

return new ExcelResult
                {
                    FileName = "sample.xls",Path = "",Data = csvData
                };

但是,它正在下载Excel …

编辑2

尝试用HttpContext.Current.Response打开excel

/// <summary>
/// Export CSV 
/// </summary>
/// <returns></returns>
public void DownloadCSV()
{
    try
    {
        var csvData = Session["CSVData"].ToString();


        byte[] getContent = new System.Text.UTF8Encoding().GetBytes(csvData);
        System.Web.HttpContext.Current.Response.ClearContent();
        System.Web.HttpContext.Current.Response.ClearHeaders();
        System.Web.HttpContext.Current.Response.Buffer = true;
        System.Web.HttpContext.Current.Response.ContentType = "application/vnd.ms-excel";
        System.Web.HttpContext.Current.Response.AddHeader("Content-Length",getContent.Length.ToString());
        System.Web.HttpContext.Current.Response.AddHeader("Content-Disposition","attachment; filename=" + "testing.csv");
        System.Web.HttpContext.Current.Response.BinaryWrite(getContent);
        System.Web.HttpContext.Current.Response.Flush();

    }
    catch (Exception ex)
    {
        HttpResponseMessage message = new HttpResponseMessage()
        {
            Content = new StringContent("Error Exporting Data")
        };

        throw new System.Web.Http.HttpResponseException(message);

    }

}

但是,仍然没有工作！

解决方法

Response.Clear();
Response.Buffer = true;
Response.AddHeader("content-disposition","attachment;filename=GridViewtoCSVExport.csv");
Response.Charset = string.Empty;
Response.ContentType = "application/text";

更多检查这个http://surajdeshpande.wordpress.com/2013/09/03/export-gridview-data-to-csv-file-in-asp-net/

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