Migrating .net framework to standard... FastReport.Utils.CompilerException

[danilobreda]

Im converting a .net framework report (.frx) to this nuget, and im getting some erros when the scripts from the report are being compilled.

    using System;
    using System.IO;
    using System.Collections;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Windows.Forms;
    using System.Drawing;
    using System.Data;
    using System.Linq;
    using System.Text.RegularExpressions;
    using FastReport;
    using FastReport.Data;
    using FastReport.Dialog;
    using FastReport.Barcode;
    using FastReport.Table;
    using FastReport.Utils;

FastReport.Utils.CompilerException: '(156,94): Error CS0122: 'Environment' is inaccessible due to its protection level
(160,51): Error CS0122: 'Environment' is inaccessible due to its protection level
(166,57): Error CS0122: 'Environment' is inaccessible due to its protection level
(171,45): Error CS0122: 'Environment' is inaccessible due to its protection level
(171,72): Error CS1061: 'string[]' does not contain a definition for 'Take' and no extension method 'Take' accepting a first argument of type 'string[]' could be found (are you missing a using directive or an assembly reference?)
(172,48): Error CS0122: 'Environment' is inaccessible due to its protection level
(172,75): Error CS1061: 'string[]' does not contain a definition for 'Skip' and no extension method 'Skip' accepting a first argument of type 'string[]' could be found (are you missing a using directive or an assembly reference?)
(256,73): Error CS0122: 'Environment' is inaccessible due to its protection level
(257,87): Error CS0122: 'Environment' is inaccessible due to its protection level
(258,101): Error CS0122: 'Environment' is inaccessible due to its protection level

The OpenSource FastReport, does not support Linq, Regex and Environment class?

Thanks for this amazing framework!!!
Reference: ZeusAutomacao/DFe.NET#1001

[8VAid8]

Hello! You have to add reference to System.Core.dll in your report to use LINQ's and Environment. You can do it in Community Designer: Report -> Options -> Script.

And an example of the report:

<?xml version="1.0" encoding="utf-8"?>
<Report ScriptLanguage="CSharp" ReferencedAssemblies="System.dll&#13;&#10;System.Drawing.dll&#13;&#10;System.Windows.Forms.dll&#13;&#10;System.Data.dll&#13;&#10;System.Xml.dll&#13;&#10;System.Core.dll" ReportInfo.Created="07/16/2019 11:27:07" ReportInfo.Modified="07/16/2019 11:48:47" ReportInfo.CreatorVersion="2017.3.10.0">
  <ScriptText>using System;
using System.IO;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Drawing;
using System.Data;
using System.Text.RegularExpressions;
using FastReport;
using FastReport.Data;
using FastReport.Dialog;
using FastReport.Barcode;
using FastReport.Table;
using FastReport.Utils;
using System.Collections.Generic;
using System.Linq;

namespace FastReport
{
  public class ReportScript
  {

    private void Text1_BeforePrint(object sender, EventArgs e)
    {
      List&lt;string&gt; items = new List&lt;string&gt;();
      items.Add(&quot;item1&quot;);
      items.Add(&quot;item2&quot;);
      items.Add(&quot;item3&quot;);
      items.Add(&quot;item2&quot;);
      Text1.Text = items.Where(a =&gt; a == &quot;item2&quot;).First() + Environment.NewLine + &quot;env&quot;;
    }
  }
}
</ScriptText>
  <Dictionary/>
  <ReportPage Name="Page1">
    <ReportTitleBand Name="ReportTitle1" Width="718.2" Height="37.8"/>
    <PageHeaderBand Name="PageHeader1" Top="41.8" Width="718.2" Height="28.35"/>
    <DataBand Name="Data1" Top="74.15" Width="718.2" Height="103.95">
      <TextObject Name="Text1" Left="141.75" Top="28.35" Width="141.75" Height="75.6" BeforePrintEvent="Text1_BeforePrint"/>
    </DataBand>
    <PageFooterBand Name="PageFooter1" Top="182.1" Width="718.2" Height="18.9"/>
  </ReportPage>
</Report>

But when you are using .net standard, you have to reference another libraries: System.Linq.dll, System.Runtime.dll and System.Runtime.Extensions.dll:

        [HttpGet("{reportIndex:int?}")]
        public IActionResult Index(int? reportIndex = 0)
        {
            var model = new HomeModel()
            {
                WebReport = new WebReport(),
                ReportsList = new[]
                {
                    "Simple List",
                    "Labels",
                    "Master-Detail",
                    "Badges",
                    "Interactive Report, 2-in-1",
                    "Hyperlinks, Bookmarks",
                    "Outline",
                    "Complex (Hyperlinks, Outline, TOC)",
                    "Drill-Down Groups",
                    "Mail Merge",
                    "LinqExample"
                },
            };

            var reportToLoad = model.ReportsList[0];
            if (reportIndex >= 0 && reportIndex < model.ReportsList.Length)
                reportToLoad = model.ReportsList[reportIndex.Value];

            model.WebReport.Report.Load(Path.Combine(ReportsFolder, $"{reportToLoad}.frx"));
            var dlls = new List<string>(model.WebReport.Report.ReferencedAssemblies.AsEnumerable());
            
            // dll's
            dlls.Add("System.Linq.dll");
            dlls.Add("System.Runtime.dll");
            dlls.Add("System.Runtime.Extensions.dll");
            model.WebReport.Report.ReferencedAssemblies = dlls.ToArray();
            var dataSet = new DataSet();
            dataSet.ReadXml(Path.Combine(ReportsFolder,"nwind.xml"));
            model.WebReport.Report.RegisterData(dataSet, "NorthWind");

            return View(model);
        }