The save action handler upload the files that needs to be specified in the saveUrl property. The save handler receives the submitted files and manages the save process in server.
@{
var asyncSettings = new Syncfusion.EJ2.Inputs.UploaderAsyncSettings { SaveUrl ="http://localhost:50707/Index?handler=Save", RemoveUrl = "http://localhost:50707/Index?handler=Remove" };
}
@Html.AntiForgeryToken()
<ejs-uploader id="uploadFiles" asyncSettings="@asyncSettings" multiple="false"autoUpload="false" uploading="addTokens"></ejs-uploader>
<script>
function addTokens(args) {
args.currentRequest.setRequestHeader('XSRF-TOKEN', document.getElementsByName('__RequestVerificationToken')[0].value);
}
</script>This section explains how to add the anti forgery tokens header in startup page.
public void ConfigureServices(IServiceCollection services)
{
services.AddMvc().AddJsonOptions(x =>
{
x.SerializerSettings.ContractResolver = new DefaultContractResolver();
});
services.AddAntiforgery(o => o.HeaderName = "xsrf-token");
}This section explains how to handle the server-side action for saving the file from server.
private IHostingEnvironment hostingEnv;
public UploaderController(IHostingEnvironment env)
{
this.hostingEnv = env;
}
[AcceptVerbs("Post")]
public IActionResult OnPostSave(IList<IFormFile> UploadFiles)
{
try
{
foreach (var file in UploadFiles)
{
if (UploadFiles != null)
{
var filename = ContentDispositionHeaderValue.Parse(file.ContentDisposition).FileName.Trim('"');
filename = hostingEnv.WebRootPath + $@"\{filename}";
if (!System.IO.File.Exists(filename))
{
using (FileStream fs = System.IO.File.Create(filename))
{
file.CopyTo(fs);
fs.Flush();
}
}
else
{
Response.Clear();
Response.StatusCode = 204;
Response.HttpContext.Features.Get<IHttpResponseFeature>().ReasonPhrase = "File already exists.";
}
}
}
}
catch (Exception e)
{
Response.Clear();
Response.ContentType = "application/json; charset=utf-8";
Response.StatusCode = 204;
Response.HttpContext.Features.Get<IHttpResponseFeature>().ReasonPhrase = "No Content";
Response.HttpContext.Features.Get<IHttpResponseFeature>().ReasonPhrase = e.Message;
}
return Content("");
}This section explains how to handle the server-side action for removing the file from server.
private IHostingEnvironment hostingEnv;
public HomeController(IHostingEnvironment env)
{
this.hostingEnv = env;
}
[AcceptVerbs("Post")]
public IActionResult OnPostRemove(IList<IFormFile> UploadFiles)
{
try
{
foreach (var file in UploadFiles)
{
var fileName = ContentDispositionHeaderValue.Parse(file.ContentDisposition).FileName.Trim('"');
var filePath = Path.Combine(hostingEnv.WebRootPath);
var fileSavePath = filePath + "\\" + fileName;
if (!System.IO.File.Exists(fileSavePath))
{
System.IO.File.Delete(fileSavePath);
}
}
}
catch (Exception e)
{
Response.Clear();
Response.StatusCode = 200;
Response.HttpContext.Features.Get<IHttpResponseFeature>().ReasonPhrase = "File removed successfully";
Response.HttpContext.Features.Get<IHttpResponseFeature>().ReasonPhrase = e.Message;
}
return Content("");
}