Posted 5 June 2023, 6:43 am EST - Updated 5 June 2023, 6:51 am EST
Created VS Studio Template for Web Assembly Report Viewer.
I am passing an object through a POST request to the Report Service and Serializing it as JSON and trying to add it through the LocateDataSource. I have not been able to set data for the form. In the form I have the data schema set to the JSON schema of the data I am passing it.
Here is the controller on the server:
{
[Route("/")]
public class HomeController : Controller
{
[HttpPost("report")]
public ActionResult Report([FromBody] ReportModel myData)
{
var reportData = JsonSerializer.Serialize(myData);
Console.WriteLine(reportData);
PageReport page_report = new PageReport();
page_report.Document.LocateDataSource += (sender, args) =>
{
args.Data = myData;
};
GrapeCity.ActiveReports.Document.PageDocument reportDocument = new GrapeCity.ActiveReports.Document.PageDocument(page_report);
return new JsonResult(reportDocument);
}
}
}Here is the code on WASM:
using var report = await http.PostAsJsonAsync("************************/report", dataModel);
_currentReport = await report.Content.ReadFromJsonAsync<string>();
Console.WriteLine(_currentReport);
await _viewer.OpenReport(_currentReport);It breaks in the controller on LocateDataSource:
Unhandled Exception:
System.Text.Json.JsonException: 'S' is an invalid start of a value. Path: $ | LineNumber: 0 | BytePositionInLine: 0.
---> System.Text.Json.JsonReaderException: 'S' is an invalid start of a value. LineNumber: 0 | BytePositionInLine: 0.
at System.Text.Json.ThrowHelper.ThrowJsonReaderException(Utf8JsonReader& json, ExceptionResource resource, Byte nextByte, ReadOnlySpan`1 bytes)
at System.Text.Json.Utf8JsonReader.ConsumeValue(Byte marker)
at System.Text.Json.Utf8JsonReader.ReadFirstToken(Byte first)
at System.Text.Json.Utf8JsonReader.ReadSingleSegment()
at System.Text.Json.Utf8JsonReader.Read()
at System.Text.Json.Serialization.JsonConverter.DoSingleValueReadWithReadAhead(Utf8JsonReader& reader, ReadStack& state)
at System.Text.Json.Serialization.JsonConverter`1[[System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].ReadCore(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state)
--- End of inner exception stack trace ---
at System.Text.Json.ThrowHelper.ReThrowWithPath(ReadStack& state, JsonReaderException ex)
at System.Text.Json.Serialization.JsonConverter`1[[System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].ReadCore(Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state)
at System.Text.Json.JsonSerializer.ReadCore[String](JsonConverter jsonConverter, Utf8JsonReader& reader, JsonSerializerOptions options, ReadStack& state)
at System.Text.Json.JsonSerializer.ReadCore[String](JsonReaderState& readerState, Boolean isFinalBlock, ReadOnlySpan`1 buffer, JsonSerializerOptions options, ReadStack& state, JsonConverter converterBase)
at System.Text.Json.JsonSerializer.ContinueDeserialize[String](ReadBufferState& bufferState, JsonReaderState& jsonReaderState, ReadStack& readStack, JsonConverter converter, JsonSerializerOptions options)
at System.Text.Json.JsonSerializer.<ReadAllAsync>d__65`1[[System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext()
at System.Net.Http.Json.HttpContentJsonExtensions.<ReadFromJsonAsyncCore>d__4`1[[System.String, System.Private.CoreLib, Version=6.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e]].MoveNext()
at BlazorViewerWebAssembly.Pages.Index.ViewerInitialized() in C:\Users\dtujo\source\repos\ReportTesting\ReportTesting\BlazorViewerWebAssembly\Pages\Index.razor:line 77
at System.Threading.Tasks.Task.<>c.<ThrowAsync>b__128_1(Object state)
at System.Threading.QueueUserWorkItemCallbackDefaultContext.Execute()
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading.ThreadPool.Callback()Picture attached of the reports JSON settings.
