![]() In user interface, you can save Spreadsheet data as Excel document by clicking File > Save As menu item in ribbon. To enable this feature, set allowSave as true and assign service url to the saveUrl property. Thanks for your help, it's been hours I'm searching but there is almost no resources about this yet for ASP. The Spreadsheet control saves its data, style, format, and more as Excel file document. I can't do the same as we see in the Configure method in the Startup class of an empty ASP.NET Core project like: app.Run(async (context) =>Īwait ("Hello World!") Įven though both Responses' types are HttpResponse, the one in my controller doesn't have any Response.WriteAsync but I precise I don't want to use any JavaScript or Razor view to achieve that, only pure HTML and my controller.Īlso please pay attention that I'm inside an API Controller. Yes my base64 string is correct because I've also tried to include it directly into the HTML and the image shows up correctly. I've seen here and here that writing in the Response body stream is doable, so I presume I'm on the good way (I've tried to return a simple string before but not working as well). I've tried several things, like removing FlushAsync(), changing the way to define the ContentType, include data:image/jpeg base64, in the string or not but nothing is working. Web authoring pros and cons For analysts, web editing functionality is not as extensive as in Tableau Desktop (although it continues to evolve toward that. = _base64Image.Length Īwait ((_base64Image), 0, _base64Image.Length) Response.ContentType = new MediaTypeHeaderValue("text/plain").ToString() Once you click OK, the project will be created with the basic architecture of MVC. You can save certain changes made in a Simulate In. Then, select Empty MVC template and click 'OK' to create the project. However, because you are not using a PlayerController while simulating, you cannot enter game controls. Response.ContentType = new MediaTypeHeaderValue("image/jpeg").ToString() Select New Project -> Visual C -> Web -> ASP.NET Web Application and enter your application name. ![]() ![]() Private const string _base64Image2 = "/9j/4AAQSkZJRgABAQEBLAEsAAD/7Sfg." Private const string _base64Image = "data:image/jpeg base64,/9j/4AAQSkZJRgABAQEBLAEsAAD/7Sfg." Public class TestBase64ImageController : Controller I'm trying to return a base64 string representing a jpeg image from an API Controller and set it as the src of an but all my attempts failed.Īnd my controller: ")]
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