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Hello Syncfusion Team,
The pdf viewer does not load the document when it is deployed, it is always waiting. It does not throw error.
The pdf is in a shared folder on Disk S that I can access without problems.
I use blazor wasm net core 5
Attached controller and a sample image.
Please help me.
CONTROLLER (The controlled I take it from an example of you) :
[Route("api/[controller]")]
[ApiController]
public class ValuesController : ControllerBase
{
private IWebHostEnvironment _hostingEnvironment;
//Initialize the memory cache object
public IMemoryCache _cache;
private readonly AppDbContext _context;
private readonly ILogger
public ValuesController(IWebHostEnvironment hostingEnvironment, IMemoryCache cache
, AppDbContext appContext
, ILogger
{
_hostingEnvironment = hostingEnvironment;
_cache = cache;
this._context = appContext;
this.logger = logger;
logger.LogInformation("PdfViewerController initialized");
Console.WriteLine("PdfViewerController initialized");
}
[HttpPost("Load")]
//
[Route("[controller]/Load")]
//Post action for Loading the PDF documents
public IActionResult Load([FromBody] Dictionary
{
Console.WriteLine("Load called");
logger.LogInformation("Load called");
//Initialize the PDF viewer object with memory cache object
PdfRenderer pdfviewer = new PdfRenderer(_cache);
MemoryStream stream = new MemoryStream();
object jsonResult = new object();
if (jsonObject != null && jsonObject.ContainsKey("document"))
{
if (bool.Parse(jsonObject["isFileName"]))
{
string documentPath = GetDocumentPath(jsonObject["document"]);
if (!string.IsNullOrEmpty(documentPath))
{
byte[] bytes = System.IO.File.ReadAllBytes(documentPath);
stream = new MemoryStream(bytes);
}
else
{
return this.Content(jsonObject["document"] + " is not found");
}
}
else
{
byte[] bytes = Convert.FromBase64String(jsonObject["document"]);
stream = new MemoryStream(bytes);
}
}
jsonResult = pdfviewer.Load(stream, jsonObject);
var result = Content(JsonConvert.SerializeObject(jsonResult));
return result;
}
//[AcceptVerbs("Post")]
//[HttpPost("Image")]
//
//[Route("[controller]/Image")]
////Post action for processing the bookmarks from the PDF documents
//public byte[] Image()
//{
// string filePath = @"S:\documents\Capture.jpeg";
// using (FileStream fileStream = new FileStream(filePath, FileMode.Open))
// {
// using (var memoryStream = new MemoryStream())
// {
// fileStream.CopyTo(memoryStream);
// Bitmap image = new Bitmap(1, 1);
// image.Save(memoryStream, ImageFormat.Jpeg);
// byte[] byteImage = memoryStream.ToArray();
// return byteImage;
// }
// }
//}
[AcceptVerbs("Post")]
[HttpPost("Bookmarks")]
[Route("[controller]/Bookmarks")]
//Post action for processing the bookmarks from the PDF documents
public IActionResult Bookmarks([FromBody] Dictionary
{
//Initialize the PDF Viewer object with memory cache object
PdfRenderer pdfviewer = new PdfRenderer(_cache);
var jsonResult = pdfviewer.GetBookmarks(jsonObject);
return Content(JsonConvert.SerializeObject(jsonResult));
}
[AcceptVerbs("Post")]
[HttpPost("RenderPdfPages")]
[Route("[controller]/RenderPdfPages")]
//Post action for processing the PDF documents
public IActionResult RenderPdfPages([FromBody] Dictionary
{
PdfRenderer pdfviewer = new PdfRenderer(_cache);
object jsonResult = pdfviewer.GetPage(jsonObject);
var result = JsonConvert.SerializeObject(jsonResult);
//var bytes = Encoding.UTF8.GetBytes(jsonResult.ToString());
//return File(jsonResult, "application/octet-stream");
return Content(result);
}
[AcceptVerbs("Post")]
[HttpPost("RenderThumbnailImages")]
[Route("[controller]/RenderThumbnailImages")]
//Post action for rendering the ThumbnailImages
public IActionResult RenderThumbnailImages([FromBody] Dictionary
{
//Initialize the PDF Viewer object with memory cache object
PdfRenderer pdfviewer = new PdfRenderer(_cache);
object result = pdfviewer.GetThumbnailImages(jsonObject);
return Content(JsonConvert.SerializeObject(result));
}
[AcceptVerbs("Post")]
[HttpPost("RenderAnnotationComments")]
[Route("[controller]/RenderAnnotationComments")]
//Post action for rendering the annotations
public IActionResult RenderAnnotationComments([FromBody] Dictionary
{
//Initialize the PDF Viewer object with memory cache object
PdfRenderer pdfviewer = new PdfRenderer(_cache);
object jsonResult = pdfviewer.GetAnnotationComments(jsonObject);
return Content(JsonConvert.SerializeObject(jsonResult));
}
[AcceptVerbs("Post")]
[HttpPost("ExportAnnotations")]
[Route("[controller]/ExportAnnotations")]
//Post action to export annotations
public IActionResult ExportAnnotations([FromBody] Dictionary
{
//PdfRenderer pdfviewer = new PdfRenderer(_cache);
//string jsonResult = pdfviewer.GetAnnotations(jsonObject);
return NoContent();
}
[AcceptVerbs("Post")]
[HttpPost("ImportAnnotations")]
[Route("[controller]/ImportAnnotations")]
//Post action to import annotations
public IActionResult ImportAnnotations([FromBody] Dictionary
{
PdfRenderer pdfviewer = new PdfRenderer(_cache);
string jsonResult = string.Empty;
if (jsonObject != null && jsonObject.ContainsKey("fileName"))
{
string documentPath = GetDocumentPath(jsonObject["fileName"]);
if (!string.IsNullOrEmpty(documentPath))
{
jsonResult = System.IO.File.ReadAllText(documentPath);
}
else
{
return this.Content(jsonObject["document"] + " is not found");
}
}
return Content(jsonResult);
}
[AcceptVerbs("Post")]
[HttpPost("ExportFormFields")]
[Route("[controller]/ExportFormFields")]
public IActionResult ExportFormFields([FromBody] Dictionary
{
PdfRenderer pdfviewer = new PdfRenderer(_cache);
string jsonResult = pdfviewer.ExportFormFields(jsonObject);
return Content(jsonResult);
}
[AcceptVerbs("Post")]
[HttpPost("ImportFormFields")]
[Route("[controller]/ImportFormFields")]
public IActionResult ImportFormFields([FromBody] Dictionary
{
PdfRenderer pdfviewer = new PdfRenderer(_cache);
object jsonResult = pdfviewer.ImportFormFields(jsonObject);
return Content(JsonConvert.SerializeObject(jsonResult));
}
[AcceptVerbs("Post")]
[HttpPost("Unload")]
[Route("[controller]/Unload")]
//Post action for unloading and disposing the PDF document resources
public IActionResult Unload([FromBody] Dictionary
{
//Initialize the PDF Viewer object with memory cache object
PdfRenderer pdfviewer = new PdfRenderer(_cache);
pdfviewer.ClearCache(jsonObject);
return this.Content("Document cache is cleared");
}
[HttpPost("Download")]
[Route("[controller]/Download")]
//Post action for downloading the PDF documents
public IActionResult Download([FromBody] Dictionary
{
PdfRenderer pdfviewer = new PdfRenderer(_cache);
string documentBase = pdfviewer.GetDocumentAsBase64(jsonObject);
return Content(documentBase);
}
[HttpPost("PrintImages")]
[Route("[controller]/PrintImages")]
//Post action for printing the PDF documents
public IActionResult PrintImages([FromBody] Dictionary
{
//Initialize the PDF Viewer object with memory cache object
PdfRenderer pdfviewer = new PdfRenderer(_cache);
object pageImage = pdfviewer.GetPrintImage(jsonObject);
return Content(JsonConvert.SerializeObject(pageImage));
}
[HttpPost("RenderPdfTexts")]
[Route("[controller]/RenderPdfTexts")]
public IActionResult RenderPdfTexts([FromBody] Dictionary
{
PdfRenderer pdfviewer = new PdfRenderer(_cache);
object result = pdfviewer.GetDocumentText(jsonObject);
return Content(JsonConvert.SerializeObject(result));
}
//Gets the path of the PDF document
private string GetDocumentPath(string document)
{
string xSQL = string.Format("select CAMPO, VALORC from Solution where CAMPO = 'RUTAOF2' OR CAMPO = 'RUTACNC' OR CAMPO = 'RUTAENSAYO' OR CAMPO = 'RUTATRAZABILIDAD' OR CAMPO = 'RUTADATOS'");
var ubicaciones = _context.Solution.FromSqlRaw(xSQL).ToList
var ubicacion = ubicaciones.Where(s => s.CAMPO == "RUTAOF2").Select(c => c.VALORC).FirstOrDefault();
string documentPath = string.Empty;
//document = "27303156459_011_00001_00000065.pdf";
if (!System.IO.File.Exists(ubicacion + "/" + document))
{
var sol = ubicaciones.Where(s => s.CAMPO == "RUTAOF2").FirstOrDefault();
//var path = _hostingEnvironment.ContentRootPath;
//string webRootPath = _hostingEnvironment.WebRootPath;
//if (System.IO.File.Exists(path + "/documentos/" + document))
// documentPath = path + "/documentos/" + document;
ubicacion = "D:\\Descargas\\";
document = "27303156459_011_00001_00000058.pdf";
if (System.IO.File.Exists(ubicacion +"/" + document))
documentPath = ubicacion + "/" + document;
}
else
{
documentPath = ubicacion + "/" + document;
}
Console.WriteLine(documentPath);
return documentPath;
}
// GET api/values
[HttpGet]
public IEnumerable
{
int size = IntPtr.Size;
return new string[] { "value1", "value2" };
}
// GET api/values/5
[HttpGet("{id}")]
public string Get(int id)
{
return "value";
}
}
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