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How to release memory when the report is loaded
Posted: Tue Mar 12, 2024 3:34 am
by nn170498
I use .NET 7 with Stimulsoft.Reports.Web.NetCore version 2022.4.4.
I loaded a report from a string, then compile and render it. How can I release memory of the report when the report is close ?
I can not dispose in the GetReport function because it need to return StiNetCoreViewer.GetReportResult(this, report);
I tried load from assemblly like :
Code: Select all
string folder = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
folder = Path.Combine(folder, "Stimulsoft\\CompiledReports");
folder = Path.Combine(folder, System.Runtime.InteropServices.RuntimeEnvironment.GetSystemVersion().ToString());
System.Console.WriteLine("report.GetReportAssemblyCacheName()" + report.GetReportAssemblyCacheName());
string compiledReportFile = Path.Combine(folder, report.GetReportAssemblyCacheName());
if (System.IO.File.Exists(compiledReportFile))
report = StiReport.GetReportFromAssembly(compiledReportFile, true);
else
{
if (!Directory.Exists(folder)) Directory.CreateDirectory(folder);
report.Compile(compiledReportFile);
}
But it throw error at report.Compile(compiledReportFile);
Re: How to release memory when the report is loaded
Posted: Tue Mar 12, 2024 8:44 am
by Lech Kulikowski
Hello,
You can use the Interpretation mode for reports:
In the interpretation mode the compilation does not occur. So time and memory is not used. It is very important, especially when a report has a great number of components.
Another method of increasing the speed of report building and reducing memory usage is a compilation of the report as an assembly - .dll file. The main advantage of this method lies in the fact that the compilation occurs only once. The next time already compiled report is loaded. There is one issue with this. When updating to the latest product version, you have to re-compile a report from a template (.mrt file) into the assembly. Otherwise some errors may occur.
Thank you.
Re: How to release memory when the report is loaded
Posted: Tue Mar 12, 2024 9:19 am
by nn170498
Hello,
Thanks for the response.
My flow is something like this:
1. Load the layout empty from .mrt file
2. Query data by LinQ and RegData
3. Compile
So could I use mode Interpretation ?
Re: How to release memory when the report is loaded
Posted: Wed Mar 13, 2024 9:16 am
by Lech Kulikowski
Hello,
Yes. In this case, the Compile() method is not needed.
Thank you.
Re: How to release memory when the report is loaded
Posted: Wed Mar 13, 2024 10:34 am
by nn170498
Hello,
However, I also use ViewerInteraction to query by using StiAction.Variables to pass variables into report.Dictionary.Variables.
If I remove the Compile() method, when I click submit, the report does not load the data in UI.
Re: How to release memory when the report is loaded
Posted: Thu Mar 14, 2024 10:42 am
by Lech Kulikowski
Hello,
Could you prepare and send a sample project that reproduces the issue for analysis?
Thank you.
Re: How to release memory when the report is loaded
Posted: Fri Mar 15, 2024 10:20 am
by nn170498
Hello,
Sorry that I can not prepare a full sample project, but I can give you sample code for previewing:
- In my controller:
Code: Select all
public async Task<IActionResult> GetReport()
{
var report = StiReport.CreateNewReport();
var reportTemplate = "mybase64_mrt_content"
if (reportTemplate != null)
{
var stream = new MemoryStream(Convert.FromBase64String(mybase64_mrt_content));
report.Load(stream);
var config= GetConfigMyReport();
// my dynamic helper will help invoke function to RegData and Compile
report = await ReflectionHelper.DynamicInvoke<Task<StiReport>>(config.FullClassName, config.Function);
return StiNetCoreViewer.GetReportResult(this, report);
}
}
public async Task<IActionResult> ViewerInteraction()
{
var _report = StiNetCoreViewer.GetReportObject(this);
StiRequestParams requestParams = StiNetCoreViewer.GetRequestParams(this);
if (requestParams.Action == StiAction.Variables)
{
\ if (requestParams.Interaction.Variables != null && _report.Dictionary.Variables != null)
_report.Dictionary.Variables.Clear();
foreach (var item in requestParams.Interaction.Variables.Keys)
{
_report.Dictionary.Variables.Add(item.ToString(), requestParams.Interaction.Variables[item.ToString()]);
\
}
}
var config= GetConfigMyReport();
// my dynamic helper will help invoke function to RegData and Compile
report = await ReflectionHelper.DynamicInvoke<Task<StiReport>>(config.FullClassName, config.Function);
return StiNetCoreViewer.InteractionResult(this, _report);
}
- In my class and function code :
Code: Select all
{
var result= MyList;
report.Dictionary.DataSources.Clear();
report.RegData("DataSource", result);
return result;
}
Re: How to release memory when the report is loaded
Posted: Fri Mar 15, 2024 11:36 pm
by Lech Kulikowski
Hello,
Unfortunately, it is difficult to say something only by the provided part of the code.
Thank you.
Re: How to release memory when the report is loaded
Posted: Sat Mar 16, 2024 11:49 am
by hamzasikveli
Lech Kulikowski wrote: ↑Tue Mar 12, 2024 8:44 am
Hello,
You can use the Interpretation mode for reports:
In the interpretation mode the compilation does not occur. So time and memory is not used. It is very important, especially when a report has a great number of components.
Another method of increasing the speed of report building and reducing memory usage is a compilation of the report as an assembly - .dll file. The main advantage of this method lies in the fact that the compilation occurs only once. The next time already compiled report is loaded. There is one issue with this. When updating to the latest product version, you have to re-compile a report from a template (.mrt file) into the assembly. Otherwise some errors may occur.
Thank you.
Thanks a lot for information Lech
Re: How to release memory when the report is loaded
Posted: Sun Mar 17, 2024 8:15 pm
by Lech Kulikowski
Hello,
You are welcome.