I am trying to use EPPlus to manipulate my xlsm template and download to client. I believe there is no issue with excel package as I am able to save the package locally. But I need content disposition to download to client when it is live...
I have tried many different ways, return file, return filecontentresult, return streamcontentresult but all result in the same unknown error (attached in screenshot, as I could not translate it)..
Solved... you cannot use Ajax to call excel export function in controller. instead, call directly using html action link and return file ActionResult and it will initiate download in client browser.
similar resolution can be found here.
Response.WriteFile() -- not working asp net mvc 4.5
Related
I would like the browser to download file on button click of blade page. The following is used in controller and and added in provider file, but its showing in browser console but not downloading file.
use PDF;
// this controller
function sensorChartPDF(){
$pdf = PDF::loadView('sensorchartpdf');
return $pdf->download('invoice.pdf')->header('Content-Type','application/pdf');;
}
///// sensorchartpdf.blade.php this is view ///
https://canvasjs.com/javascript-charts/multi-series-spline-chart/
chart static code appened in this file
To signify to the web browser that the file should be downloaded and not displayed in line you have to specify the content-disposition header with a value of attachment.
Your question, however, does not appear to be purely a question regarding Dompdf. With Dompdf you would merely use the following:
$dompdf->stream("output.pdf", array('Attachment' => 1));
I'm providing this for anyone looking for similar issue when working with the library directly.
Since you're not using Dompdf directly but via another library so you'll need to specify exactly which library or framework you're using before somebody can provide an accurate answer.
I have a problem trying to replicate the File Picker example in link, I create a new application using a Universal Application Windows store template.
I extract the content of the class Scenario02 and create a similar one in my example. This class implements an interface called IFileOpenPickerContinuable which I extract from the class ContinuationManager and create a file in my project with the same name to implement that interface.
I don't get any compilation errors when I run the application. When the line openPicker.PickMultipleFilesAndContinue(); is executed, it throw a exception.
'UnauthorizedAccessException'(Access is denied. Exception from HRESULT: 0x80070005) exception.
In the Microsoft example they don't modify any of the manifests of the application. Do you know what can I be missing?
(Question solved in a question edit. Converted to a community wiki answer.)
The OP wrote:
Solved! The problem was trying to launch the data picker in the class constructor.
I have a very strange problem. I've recently added MVC4 to an old Web Forms project. I did this by creating a new project, and adding the old files to the new project (rather than opposite approach of copying the new MVC files in). When I did this, one of my Web Forms pages stopped working - When I try to access it, it redirects to HTTP Error 404.0 - Not Found.
The file is there, and I also have other Web Forms (.aspx) pages that load without any issues. To pin-point the issue, I created a Web Forms page with the same name to replace it, and it the blank page loads. I started adding code to the new page one line at a time till I found the issue.
I finally found that what caused the issue is when I have more than one RequiredFieldValidator tag on the page. Any idea why this would happen or what I can do to work around it?
assign groups to the validators. Put them in separate groups, dont put them in same groups , make sure You dont have controltoassign be same because then during compilation same requiredfield validator might have concurrency issues and crash the page. Putting them in different groups assures that even more. If you still get the same issue then try this as well
Open IIS Manager
Right Click the server name
Select properties
Click the MIME Types button
Click New
Extension is .pdf
MIME type is application/pdf
I want to implement the Share source contract in my WinRT C# Metro app (Windows Release Preview). My app is storing arbitrary files. Not in the filesystem, but instead I get the data over a WCF service as byte[]. Now I want to share such "files" in my app.
The only possibility I've seen with a standard data format is using the SetStorageItems() method on the DataPackage. Thus I'm facing the challenge to convert the data from my byte array to a StorageFile, which can be shared. I found the StorageFile.CreateStreamedFileAsync() method and wanted to use it in this way:
// filename: string
// fileContent: byte[]
// ... setting DataPackage title and description ...
DataRequestDeferral deferral = args.Request.GetDeferral();
var file = await Windows.Storage.StorageFile.CreateStreamedFileAsync(filename,
async stream => await stream.WriteAsync(fileContent.AsBuffer()), null);
args.Request.Data.SetStorageItems(new List<IStorageItem> { file });
deferral.Complete();
It compiles fine, but it doesn't work as expected. I've tried the sharing with the standard Mail app. The Mail share view opens and I can create a new mail. The file is shown without thumbnail (as expected), but the e-mail can't be sent. It's showing the sending progress for several minutes and then an error occurs: "Couldn't share {filename} with Mail.". The share charm shows "Something went wrong" and "[...] Mail can't share right now. Try again later.".
It works perfectly when I load the StorageFile from the file system: the mail opens and is sent within seconds, no problems here. So either I'm using CreateStreamedFileAsync() wrong or there's a bug in this method, what do you think?
In the callback passed into CreateStreamedFileAsync, you need to actually dispose of the object - that signals to the OS that you are done.
Wrote a complete example here
The Mail app is not a target for sharing files. From http://blogs.msdn.com/b/b8/archive/2012/06/14/building-the-mail-app.aspx: "Mail supports sharing text, links, and pictures."
Remember that there are 2 parts of the Share contract: Share sources and Share targets. As you know, there are many different data formats that can be shared between them, like text, pictures, URIs, and files. The full list of the different data formats that are supported is at http://msdn.microsoft.com/en-us/library/windows/apps/hh771179.aspx.
I recommend that you use the Share Target Sample app to test that your file is being shared properly - share to this and it will display everything that is being shared from your app as a source (and it does accept files for sharing). You can download it from http://code.msdn.microsoft.com/windowsapps/Sharing-Content-Target-App-e2689782. You can also use the Share Source Sample app as an example and leverage code from this app; you can download it from http://code.msdn.microsoft.com/windowsapps/Sharing-Content-Source-App-d9bffd84.
Hope that helps!
Ok, perhaps the preview version of the Mail app doesn't handle the sharing target contract correctly. Using the SDK sample app "Sharing Content Target App" from http://code.msdn.microsoft.com/windowsapps/Sharing-Content-Target-App-e2689782, sharing a StorageItem created in memory with the StorageFile.CreateStreamedFileAsync() method posted above works fine.
Thus, that's the way you should go when you want to share in-memory byte[] arrays. For testing, make sure that the share target app doesn't run in Visual Studio when you want to share data from another app with it. Then the sharing sidebar mysteriously will disappear automatically...
Using MVC3 and Razor View engine, I created a VB.NET web application in VS 2010. This creates the default Account and Home Controller along with corresponding Action Views.
Now if I open any vbhtml file I get the following error message in the Error List window.
Error 50 Syntax error. C:****\MVC3AppVB\Views\Account\LogOn.vbhtml MVC3AppVB
(See screenshot here http://www.flickr.com/photos/7672540#N07/5469248676/)
Who ever this app compiles and runs without any problem. I tried to create the same project using C# and there is no error message in the Error List Window.
Can anyone explain why this error message shows up only for VB and not for C#?
Thanks in advance.
The problem is with MVC3 and webpage 1.0 tooling. This issue has been answered in codeplex.
Probably some bug with the Intellisense. Try recompiling the project. Unfortunately the Razor Intellisense is far from perfect. I hope it will be improved in future releases of Razor.