如何为LocalReport设置`EnableExternalImages=true` [英] How to set `EnableExternalImages = true` for LocalReport
本文介绍了如何为LocalReport设置`EnableExternalImages=true`的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我使用的是Report Package-AspNetCore.Reporting-2.1.0。我想打印具有外部图像的RDLC报告。呈现为pdf时出错。
An error occurred during local report processing.;Report 'Payslip' contains external images. The EnableExternalImages property has not been set for this report.
呈现部分代码:
string reportFileName = "Payslip.rdlc";
if (paySlip.IsHourlySalary)
reportFileName = "Payslip.rdlc";
else
{
reportFileName = "PaySlipForAnnual.rdlc";
}
string ReportPath;
if (_webHostEnvironment != null)
ReportPath = Path.Combine(_webHostEnvironment.ContentRootPath + "\TMReports", reportFileName);
else
{
ReportPath = Path.Combine(Path.GetDirectoryName(System.Reflection.Assembly.GetEntryAssembly().Location) + "/TMReports", reportFileName);
}
LocalReport localReport = new LocalReport(ReportPath);
message += " Before localReport.SetParameters(param);";
message += " Before localReport.DataSources.Add(cd);";
localReport.AddDataSource("dsPaySlip", dtPaySlip); // Add datasource here
message += " Before byte[] bytes = localReport.Render(";
var result = localReport.Execute(RenderType.Pdf, 1, reportParams, mimeType);
return result.MainStream;
推荐答案
渲染前运行此命令
localReport.EnableExternalImages = true;
编辑:
您正在使用的开源库似乎没有公开您需要的变量或方法。
但是,您仍然可以通过反射更改它的值...
这不美观,但会完成工作的。
AspNetCore.Reporting.LocalReport rpt = new AspNetCore.Reporting.LocalReport(yourReportPath);
BindingFlags bindFlags = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Static;
FieldInfo field = rpt.GetType().GetField("localReport", bindFlags);
object rptObj = field.GetValue(rpt);
Type type = rptObj.GetType();
PropertyInfo pi = type.GetProperty("EnableExternalImages");
pi.SetValue(rptObj, true, null);
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