我几乎到处都在寻找解决此问题的方法，但还没有找到对我有用的方法。我在我们的托管服务器上设置了一个报告服务器（2008 R2）。我使用报表生成器从头开始创建了一个报表，并在使用其 URL 登录报表服务器时对其进行了测试，并成功生成了报表。
当我尝试从我们的 MVC 应用程序查看报告时，只有报告工具栏呈现（显示导出、打印、页面和查看报告按钮）。它显示它正在“加载”，完成后它只是一个空白报告，但它在工具栏上显示了正确的参数，如果我在代码中更改参数的名称，它会返回一个错误，说明参数没有存在；所以我知道地址用户/密码信息是正确的。
页面的代码和标记
<%@ Page Title="" Language="C#" MasterPageFile="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage" %>
<%@ Import Namespace="Comp.Proj.Core.Model"%>
<%@ Import Namespace="Comp.Proj.Core.Service" %>
<%@ Import Namespace="Microsoft.Reporting.WebForms" %>
<%@ Import Namespace="System.Security.Principal" %>
<%@ Import Namespace="System.Net" %>
<%@ Register Assembly="Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a"
Namespace="Microsoft.Reporting.WebForms" TagPrefix="rsweb" %>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<h2><a href="/Reporting">Back to Reports</a> / <%=ViewData["Report"]%></h2>
<form action="/Reporting/DateViewer" method="get">
Start Date:
<input type="text" name="start" class="datepicker" value="<%=ViewData[" Start "] %>" /> End Date:
<input type="text" name="end" class="datepicker" value="<%=ViewData[" End "] %>" />
<input type="hidden" name="id" value="<%=ViewData[" Report "] %>" />
<input type="submit" class="button" value="Run" />
</form>
<script runat="server" language="C#">
protected void Page_Load(object sender, EventArgs e) {
try {
if (!IsPostBack) {
if (ViewData["Start"] != null) {
var param = new List < ReportParameter > ();
var start = new ReportParameter("start", ViewData["Start"].ToString());
var end = new ReportParameter("end", ViewData["End"].ToString());
var region = new ReportParameter("region", "2");
param.Add(start);
param.Add(end);
param.Add(region);
ReportViewer1.Width = 1100;
ReportViewer1.Height = 900;
ReportViewer1.ShowCredentialPrompts = false;
ReportViewer1.ShowDocumentMapButton = false;
ReportViewer1.ShowExportControls = true;
ReportViewer1.ShowFindControls = false;
ReportViewer1.ShowPrintButton = true;
ReportViewer1.ShowPromptAreaButton = false;
ReportViewer1.ShowRefreshButton = false;
ReportViewer1.ShowToolBar = true;
ReportViewer1.ShowZoomControl = false;
ReportViewer1.SizeToReportContent = true;
ReportViewer1.ProcessingMode = ProcessingMode.Remote;
IReportServerCredentials irsc =
new CustomReportCredentials(ConfigurationManager.AppSettings["ReportServerUser"],
ConfigurationManager.AppSettings["ReportServerPassword"], "SERVERNAME");
ReportViewer1.ServerReport.ReportServerCredentials = irsc;
ReportViewer1.ServerReport.ReportServerUrl =
new Uri(string.Format("http://{0}/ReportServer",
ConfigurationManager.AppSettings["ReportServerUrl"]));
ReportViewer1.ServerReport.ReportPath = string.Format("/{0}", ViewData["Report"]);
ReportViewer1.ServerReport.SetParameters(param);
ReportViewer1.ShowReportBody = true;
ReportViewer1.ServerReport.Refresh();
}
}
} catch (Exception ex) {
Response.Write(ex.Message);
}
}
</script>
<form id="form1" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<div>
<rsweb:ReportViewer ID="ReportViewer1" runat="server" />
</div>
</form>
</asp:Content>
网络配置
<assemblies>
<add assembly="Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
<add assembly="Microsoft.ReportViewer.Common, Version=10.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A"/>
</assemblies>
<buildProviders>
<add extension=".rdlc" type="Microsoft.Reporting.RdlBuildProvider, Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
</buildProviders>
<system.webServer>
<handlers>
<add name="ReportViewerWebControlHandler" preCondition="integratedMode" verb="*" path="Reserved.ReportViewerWebControl.axd" type="Microsoft.Reporting.WebForms.HttpHandler, Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" />
</handlers>
</system.webServer>