asp.net-mvc – 在ASP.NET MVC中以HTML格式呈现RDLC报告

我想在ASP.NET MVC项目中以 HTML格式呈现RDLC报告.

我成功地制作了一个原型,借助于this article,在PDF,Excel和TIFF图像中呈现RDLC报告.但是,我很惊讶,HTML不是LocalReport.Render()中的默认可用格式之一.

我遇到了this article,它描述了一个技巧来启用HTML4.0的渲染格式,但我认为这只是一个ReportViewer控件(我可能是错的).

问题是,在MVC中如何在HTML中渲染RDLC报告,就像ReportView一样(见下面的屏幕截图)？

解决方法

这是一个简单的任务.您可以按照以下步骤操作.

>在解决方案中创建一个文件夹,并给出一个名称“报告”.
>添加ASP.Net Web窗体并将其命名为ReportView.aspx
>创建一个类ReportData并将其添加到Reports文件夹.添加以下代码
到班级.

public class ReportData
{
  public ReportData()
  {
      this.ReportParameters = new List<Parameter>();
      this.DataParameters = new List<Parameter>();
  }

  public bool IsLocal { get; set; }
  public string ReportName { get; set; }
  public List<Parameter> ReportParameters { get; set; }
  public List<Parameter> DataParameters { get; set; }
}

public class Parameter
{
  public string ParameterName { get; set; }
  public string Value { get; set; }
}

>添加另一个类并将其命名为ReportBasePage.cs.在此类中添加以下代码.

public class ReportBasePage : System.Web.UI.Page
{
    protected ReportData ReportDataObj { get; set; }

    protected override void OnInit(EventArgs e)
    {
        base.OnInit(e);
        if (HttpContext.Current != null)
            if (HttpContext.Current.Session["ReportData"] != null)
            {
                ReportDataObj = HttpContext.Current.Session["ReportData"] as ReportData;
                return;
            }
        ReportDataObj = new ReportData();
        CaptureRouteData(Page.Request);
    }


    private void CaptureRouteData(HttpRequest request)
    {
        var mode = (request.QueryString["rptmode"] + "").Trim();
        ReportDataObj.IsLocal = mode == "local" ? true : false;
        ReportDataObj.ReportName = request.QueryString["reportname"] + "";
        string dquerystr = request.QueryString["parameters"] + "";
        if (!String.IsNullOrEmpty(dquerystr.Trim()))
        {
            var param1 = dquerystr.Split(',');
            foreach (string pm in param1)
            {
                var rp = new Parameter();
                var kd = pm.Split('=');
                if (kd[0].Substring(0,2) == "rp")
                {
                    rp.ParameterName = kd[0].Replace("rp","");
                    if (kd.Length > 1) rp.Value = kd[1];
                    ReportDataObj.ReportParameters.Add(rp);
                }
                else if (kd[0].Substring(0,2) == "dp")
                {
                    rp.ParameterName = kd[0].Replace("dp","");
                    if (kd.Length > 1) rp.Value = kd[1];
                    ReportDataObj.DataParameters.Add(rp);
                }
            }
        }
    }
}

>将ScriptManager添加到ReportView.aspx页面.现在把报表查看器带到页面.在报表查看器中,设置属性AsyncRendering =“false”.代码如下.

<rsweb:ReportViewer ID="ReportViewerRSFReports" runat="server" AsyncRendering="false"
    Width="1271px" Height="1000px" >
</rsweb:ReportViewer>

>在ReportView.aspx.cs中添加两个NameSpace

using Microsoft.Reporting.WebForms;
using System.IO;

>将System.Web.UI.Page更改为ReportBasePage.只需使用以下代码替换代码.

public partial class ReportView : ReportBasePage
{
    protected void Page_Load(object sender,EventArgs e)
    {
        if (!IsPostBack)
        {
            RenderReportModels(this.ReportDataObj);
        }
    }

    private void RenderReportModels(ReportData reportData)
    {
        RASolarERPData dal = new RASolarERPData();
        List<ClosingInventoryValuation> objClosingInventory = new List<ClosingInventoryValuation>();

        // Reset report properties.
        ReportViewerRSFReports.Height = Unit.Parse("100%");
        ReportViewerRSFReports.Width = Unit.Parse("100%");
        ReportViewerRSFReports.CssClass = "table";

        // Clear out any prevIoUs datasources.
        this.ReportViewerRSFReports.LocalReport.DataSources.Clear();

        // Set report mode for local processing.
        ReportViewerRSFReports.ProcessingMode = ProcessingMode.Local;

        // Validate report source.
        var rptPath = Server.MapPath(@"./Report/" + reportData.ReportName +".rdlc");

        //@"E:\RSFERP_SourceCode\RASolarERP\RASolarERP\Reports\Report\" + reportData.ReportName + ".rdlc";
        //Server.MapPath(@"./Report/ClosingInventory.rdlc");

        if (!File.Exists(rptPath))
            return;

        // Set report path.
        this.ReportViewerRSFReports.LocalReport.ReportPath = rptPath;

        // Set report parameters.
        var rpPms = ReportViewerRSFReports.LocalReport.GetParameters();
        foreach (var rpm in rpPms)
        {
            var p = reportData.ReportParameters.SingleOrDefault(o => o.ParameterName.ToLower() == rpm.Name.ToLower());
            if (p != null)
            {
                ReportParameter rp = new ReportParameter(rpm.Name,p.Value);
                ReportViewerRSFReports.LocalReport.SetParameters(rp);
            }
        }

        //Set data paramater for report SP execution
        objClosingInventory = dal.ClosingInventoryReport(this.ReportDataObj.DataParameters[0].Value);

        // Load the dataSource.
        var dsmems = ReportViewerRSFReports.LocalReport.GetDataSourceNames();
        ReportViewerRSFReports.LocalReport.DataSources.Add(new ReportDataSource(dsmems[0],objClosingInventory));

        // Refresh the ReportViewer.
        ReportViewerRSFReports.LocalReport.Refresh();
    }
}

>将文件夹添加到报告文件夹,并将其命名为“报告”.现在,将RDLC报告添加到Reports / Report文件夹,并将其命名为ClosingInventory.rdlc.
>现在添加一个Controller并将其命名为ReportController.在控制器中添加以下操作方法.

public ActionResult ReportViewer()
{                
    ViewData["reportUrl"] = "../Reports/View/local/ClosingInventory/";

    return View();
}

>添加一个视图页面,点击ReportViewer控制器.命名为查看页面ReportViewer.cshtml.将以下代码添加到视图页面.

@using (Html.BeginForm("Login"))
 { 
       @Html.DropDownList("ddlYearMonthFormat",new SelectList(ViewBag.YearMonthFormat,"YearMonthValue","YearMonthName"),new { @class = "DropDown" })

  Stock In Transit: @Html.TextBox("txtStockInTransit","",new { @class = "LogInTextBox" })

  <input type="submit" onclick="return ReportValidationCheck();" name="ShowReport"
             value="Show Report" />

  }

>添加iframe.设置Iframe的属性如下

frameborder="0"  width="1000"; height="1000"; style="overflow:hidden;" scrolling="no"

>将以下JavaScript添加到查看器.

function ReportValidationCheck() {

var url = $('#hdUrl').val();
var yearmonth = $('#ddlYearMonthFormat').val();      
var stockInTransit = $('#txtStockInTransit').val()

if (stockInTransit == "") {
    stockInTransit = 0;
}

if (yearmonth == "0") {
    alert("Please Select Month Correctly.");
}
else {

    //url = url + "dpSpYearMonth=" + yearmonth + ",rpYearMonth=" + yearmonth + ",rpStockInTransit=" + stockInTransit;

    url = "../Reports/ReportView.aspx?rptmode=local&reportname=ClosingInventory&parameters=dpSpYearMonth=" + yearmonth + ",rpStockInTransit=" + stockInTransit;

    var myframe = document.getElementById("ifrmReportViewer");
    if (myframe !== null) {
        if (myframe.src) {
            myframe.src = url;
        }
        else if (myframe.contentWindow !== null && myframe.contentWindow.location !== null) {
            myframe.contentWindow.location = url;
        }
        else { myframe.setAttribute('src',url); }
    }
}

return false;
}

>在Web.config文件中添加以下密钥到appSettings部分添加

key="UnobtrusiveJavaScriptEnabled" value="true"

>在system.web处理程序中添加以下键

add =“*”path =“Reserved.ReportViewerWebControl.axd”type =“Microsoft.Reporting.WebForms.HttpHandler,Microsoft.ReportViewer.WebForms,Version = 10.0.0.0,Culture = neutral,PublicKeyToken = b03f5f7f11d50a3a”>将您的数据源更改为您自己的数据源.这个解决方案很简单,我觉得每个人都喜欢它.

原文链接：https://www.f2er.com/aspnet/246788.html

asp.net-mvc – 在ASP.NET MVC中以HTML格式呈现RDLC报告

解决方法

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