"404 - File or directory not found." when run FastReport.NET under an IIS Application: Web

Val Dan

I am testing the FastReport.NET Trial Version.

I have an ASP.NET Core 2 aplication deployed under an IIS Application: WebSite/WebApplication

When I run a FastReport.NET report I get:
Server Error
404 - File or directory not found.
The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable.

and using developer tools in browser I see multiple errors like this one:

HTTP404: NOT FOUND - The server has not found anything matching the requested URI (Uniform Resource Identifier).
(XHR)GET - http://server:8001/_fr/preview.getReport?r...;renderBody=yes

I have tried to change RouteBasePath to "/WebApplication/_fr" and this time I get:
Error
404 - Not Found


and using developer tools in browser I see multiple errors like this one:
HTTP404: NOT FOUND - The server has not found anything matching the requested URI (Uniform Resource Identifier).
(XHR)GET - http://server:8001/WebApplication/_fr/prev...;renderBody=yes


If I move the ASP.NET app into the root Application of the IIS WebSite or run it under VS2017 IIS Express everything works fine.

How to make it function under WebSite/WebApplication ?

Thank you

ipong

definitely a bug, but there is a workaround: inject basepath into html/script which is rendered by fastreport

https://mega.nz/#!Z50wjSZC!GdAffsV6...LxlSHA1xGxOnIaA

LukasXRV

ipong wrote: »

definitely a bug, but there is a workaround: inject basepath into html/script which is rendered by fastreport

https://mega.nz/#!Z50wjSZC!GdAffsV6...LxlSHA1xGxOnIaA

The link url is not working.
What was your workaround solution please? I try inject basepath into HTML/script rendered by fastreport, but after that in page there are additional ajax calls and urls are wrong.
Thanks.

jc0814

hey, have any progress? cuz I got the same problem...

ipong

you must have source code to fix the bug

ipong

LekPio

To get the Web Root Path try

In  Core 2.0

  public class HomeController : Controller

  {

    private readonly IHostingEnvironment _hostingEnvironment;

    ..........

     

    public HomeController(IHostingEnvironment hostingEnvironment)

    {

      _hostingEnvironment = hostingEnvironment;

    }

    ....In your code... Index()

    string webRootPath = _hostingEnvironment.WebRootPath; // Get the path to wwwroot folder

In Core 3 and higher try

  public class HomeController : Controller

  {

    private readonly IWebHostEnvironment _hostingEnvironment;

    ..........

    public HomeController(IWebHostEnvironment hostingEnvironment)

    {

      _hostingEnvironment = hostingEnvironment;

    }

    ....In your code... Index()

    string webRootPath = _hostingEnvironment.WebRootPath; // Get the path to wwwroot folder

volkhardv

Hello,

i´m using the current Demo-Version for evalutaion and do have the same problem. Can you please give an solution how to inject the correct path into html or give another solution? I try to use it with AspNet Core 3.1

best regards

Volkhard

ipong

FastReportCore.7z

Uploaded Feb 7, 20211.97 MB

Asp.net Core 2.2 single page application, dont forget to copy folder "Reports" to publish folder😀

ipong

FastReportCore_3.1.7z

Uploaded Feb 8, 20211.97 MB

Asp.net Core 3.1 single page application, dont forget to copy folder "Reports" to publish folder

<ItemGroup> 
  <Content Include="Reports\**"> 
    <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory> 
  </Content> 
</ItemGroup>

volkhardv

Hello ipong,

thanks for your fast help :)

i modified following lines:

//        string basePath = Request.PathBase.Value.Replace("/", "");

        string basePath = Request.PathBase.Value;

        if (basePath.StartsWith("/"))

        {

          basePath = basePath.Substring(1);

        }

With this the injection works on a folder-Structure like https://localhost/test/test2 on IISExpress

When i deploy this to an IIS (windows 2016) into an subfolder test i get an 500-Error on the request

_fr/preview.getReport?reportId=cf6af2189d4e4a389adaa8d382bc252e&renderBody=yes

Do you have an idea?

best regards

Volkhard

ipong

just change :

string basePath = Request.PathBase.Value.Replace("/", "");

to :

string path = Request.PathBase.Value;

string basePath = path.Length == 1 ? "" : path.StartsWith("/") ? path.Substring(1) : path;

volkhardv

Hello Ipong,

thanks for your help.

i changed the code to your sample above - but there is still the http 500-Errorcode at _fr/preview.getReport?reportId=f7d249dbc88145879202c6a1f0a54cc5&renderBody=yes:1 

Do you have another idea? Maybe one topic is, that directory test2 is converted to an Web-Application?

best regards

Volkhard

ipong

untitled.zip

Uploaded Feb 10, 20213.9 KB

rewrite the code, much cleaner...

[HttpPost("Report")]

[Route("Report")]

public ModelFastReport Report([FromBody] ModelDemo value)

{

try

{

DataSet data1 = LoadData1();

List<Category> data2 = LoadData2();

FastReport.Web.WebReport wr = new FastReport.Web.WebReport();

string frx = Path.Combine(_env.ContentRootPath, "reports", value.file);

wr.Report.Load(frx);

wr.Report.RegisterData(data1, "NorthWind");

wr.Report.RegisterData(data2, "Categories BusinessObject");

foreach (FastReport.Data.DataSourceBase item in wr.Report.Dictionary.DataSources)

{

item.Enabled = true;

}

string basePath = Request.PathBase.Value;

return new ModelFastReport() { id = basePath, html = FastReportHtml(basePath, wr.ID, wr.RenderSync().Value) };

}

catch (Exception ex)

{

return new ModelFastReport() { id = "", html = ex.ToString() };

}

}

private string FastReportHtml(string basePath, string token, string htmlString)

{

string oldCssOutline = string.Format(".fr{0}-outline {{", token);

string newCssOutline = string.Concat(oldCssOutline, "color: black;");

string oldAjax = "container.outerHTML = xhr.responseText";

string newAjax = string.Format("{0}.replace(\"{1}\", \"{2}\").replace(/\\/_fr/g, \"{3}/_fr\")", oldAjax, oldCssOutline, newCssOutline, basePath);

string oldCssProgress = "style=\"min-height:200px\">";

string newCssProgress = string.Format("><img src=\"{0}/progress.gif\">", basePath);

string OldCssSpinner = string.Format(".fr{0}-spinner {{", token);

string NewCssSpinner = string.Concat(OldCssSpinner, "display: none;");

string oldCssBackgroundColor = "background-color: white;";

return htmlString.Replace("/_fr", basePath + "/_fr").Replace(oldCssBackgroundColor, "").Replace(oldCssProgress, newCssProgress).Replace(OldCssSpinner, NewCssSpinner).Replace(oldAjax, newAjax);

}

ipong

but...when you have a report with picture inside, 'print from browser' will not work. thats why in my previous comment, i said "you must have source code to fix the bug"

ipong

Untitled.zip

Uploaded Feb 10, 20214.12 KB

here is the fix for 'print from browser'

volkhardv

Hello Ipong,

thanks for your hint.

i had to publish a selfcontained deployment because on the IIS server is only the .Net Core Hosting-Package installed - but the Solution requires The framework 'Microsoft.WindowsDesktop.App', version '3.1.0' was not found..

i think this comes from the used Core3-Assemblies. It is possible to get a version, which runs with the .Net Core-Hosting-Package?

best regards

ipong

i got the same error, must downgrade to .net core 2.2 => FastReport.Core.2021.1.7-demo.nupkg & FastReport.Web.2021.1.7-demo.nupkg

It was not possible to find any compatible framework version

The framework 'Microsoft.WindowsDesktop.App', version '3.1.0' was not found.

 - No frameworks were found.

You can resolve the problem by installing the specified framework and/or SDK.

The specified framework can be found at:

  - https://aka.ms/dotnet-core-applaunch?framework=Microsoft.WindowsDesktop.App&framework_version=3.1.0&arch=x64&rid=win10-x64

It was not possible to find any compatible framework version

The framework 'Microsoft.WindowsDesktop.App', version '3.1.0' was not found.

 - No frameworks were found.

You can resolve the problem by installing the specified framework and/or SDK.

The specified framework can be found at:

  - https://aka.ms/dotnet-core-applaunch?framework=Microsoft.WindowsDesktop.App&framework_version=3.1.0&arch=x64&rid=win10-x64