禁用对话框，该对话框提示“；打开/保存/取消”；用户从ASP.NET4.5C#网站选择PDF格式的SSRS2012报告

我需要绕过/禁用对话框，该对话框提示用户从ASP.NET C#站点为PDF格式的SSRS报告选择"打开"、"保存"或"取消"。

我能够做到以下几点：在C中从ASP.NET调用并呈现PDF格式的SSRS报告#将PDF报告保存在特定驱动器中，但不希望对话框提示"打开"、"保存"或"取消"。

我想禁用或绕过这个需要用户选择"打开"、"保存"或"取消"的对话框（试图避免这种额外的点击）。我的代码将读取保存的PDF文件并在浏览器中查看。我使用ReportViewer创建报告，然后以PDF格式呈现，所以它保存在C:''//PDFReports文件夹中。

如何强制"保存或取消"或绕过此对话框不显示？这是我的代码：

private void ShowReport()
{
    try
    {
        string urlReportServer = "http://devSSRS//ReportServer";
        ReportViewerSSRS.ProcessingMode = ProcessingMode.Remote; // ProcessingMode will be Either Remote or Local
        ReportViewerSSRS.ServerReport.ReportServerUrl = new Uri(urlReportServer); //Set the ReportServer Url
        ReportViewerSSRS.ServerReport.ReportPath = "/FinanceReports/GrossProfitReport"; //Passing the Report Path                
        //Creating an ArrayList for combine the Parameters which will be passed into SSRS Report
        ArrayList reportParam = new ArrayList();
        reportParam = ReportDefaultPatam();
        ReportParameter[] param = new ReportParameter[reportParam.Count];
        for (int k = 0; k < reportParam.Count; k++)
        {
            param[k] = (ReportParameter)reportParam[k];
        }
        //pass parmeters to report
        ReportViewerSSRS.ServerReport.SetParameters(param); //Set Report Parameters
        ReportViewerSSRS.ServerReport.Refresh();
       //output as PDF 
        byte[] returnValue = null;
        string format = "PDF";
        string deviceinfo = "";
        string mimeType = "";
        string encoding = "";
        string extension = "pdf";
        string[] streams = null;
        Microsoft.Reporting.WebForms.Warning[] warnings = null;

        returnValue = ReportViewerSSRS.ServerReport.Render(format, deviceinfo, out mimeType, out encoding, out extension, out streams, out warnings);
        Response.Buffer = true;
        Response.Clear();
        Response.ContentType = mimeType;
        Response.AddHeader("content-disposition", "attachment; filename=GrossProfitReport.pdf");
        Response.BinaryWrite(returnValue);
        Response.Flush();
        HttpContext.Current.ApplicationInstance.CompleteRequest();
        string FileName = @"C/ReportFilesPDF/"
        FileStream fs = File.OpenWrite(FileName);
        fs.Write(returnValue, 0, returnValue.Length);
        fs.Close();

    }
    catch (Exception ex)
    {
        throw ex;
    }
}

private ArrayList ReportDefaultPatam()
{
    string selYear = (string)(Session["Year"]);
    string selMonth = (string)(Session["Month"]);
    string selGroup1 = (string)(Session["Segment"]);

    ArrayList arrLstDefaultParam = new ArrayList();
    arrLstDefaultParam.Add(CreateReportParameter("Year", selYear));
    arrLstDefaultParam.Add(CreateReportParameter("Month", selMonth));
    arrLstDefaultParam.Add(CreateReportParameter("Segment", selSegment));
    return arrLstDefaultParam;
}
private ReportParameter CreateReportParameter(string paramName, string pramValue)
{
    ReportParameter aParam = new ReportParameter(paramName, pramValue);
    return aParam;
}

非常感谢您的帮助！！非常感谢，chaydeee

Protected Sub SaveFile(ByVal url As String, ByVal localpath As String)
        Dim loRequest As System.Net.HttpWebRequest
        Dim loResponse As System.Net.HttpWebResponse
        Dim loResponseStream As System.IO.Stream
        Dim loFileStream As New System.IO.FileStream(localpath, System.IO.FileMode.Create, System.IO.FileAccess.Write)
        Dim laBytes(256) As Byte
        Dim liCount As Integer = 1
        Try
            loRequest = CType(System.Net.WebRequest.Create(url), System.Net.HttpWebRequest)
            loRequest.Credentials = System.Net.CredentialCache.DefaultCredentials
            'loRequest.Credentials = New System.Net.NetworkCredential("username", "password", "domain")
            loRequest.Timeout = 600000
            loRequest.Method = "GET"
            loResponse = CType(loRequest.GetResponse, System.Net.HttpWebResponse)
            loResponseStream = loResponse.GetResponseStream
            Do While liCount > 0
                liCount = loResponseStream.Read(laBytes, 0, 256)
                loFileStream.Write(laBytes, 0, liCount)
            Loop
            loFileStream.Flush()
            loFileStream.Close()
        Catch ex As Exception
        End Try
    End Sub