We just launched W3Schools videos. Get certified by completing a course today! If you want to report an error, or if you want to make a suggestion, do not hesitate to send us an e-mail:.
Example Specify a value for the download attribute, which will be the new filename of the downloaded file "w3logo. Report Error.
Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Download file from a href link, how? Asked 4 years, 3 months ago. Active 4 years, 3 months ago. Viewed 3k times. Mykremin Mykremin 23 1 1 silver badge 5 5 bronze badges. You use onclick? The download hyperlink placed below the canvas allows you to download the canvas graphics.
The Download JavaScript function is responsible for doing this job for us. It is shown below :. The Download function first draws a rectangle on the canvas and then clears a region from the rectangle. We won't go into any details of canvas element here. Then we grab the reference to the download anchor element and set its href and download properties. The href property is set to a data URLntaining the base64 encoded e data. This is done using the toDataURL method of the canvas.
The download property is set to MyCanvas. Another use of the download attribute could be when you want the user to download dynamically generated CSV or XML data. Suppose you have a table displayed on a web page like this :.
You can accomplish this task with a dash of jQuery code as shown below :. The above code wires the click event handler of the Download Table link. Upon clicking the link the code converts the table data into CSV. This is done using a jQuery plugin - table2CSV.
We grab the data in a variable. Moreover, we also set the download property of the hyperlink to EmployeeTable. This way the download dialog will have the default file name of EmployeeTable. Online Courses ASP. The download attribute introduced in HTML5 comes handy in the following situations : You want the user to download a resource rather than navigating to it. You want to assign some default file name for the file being downloaded.
Note that the download attribute works only for same origin URLs. Let's try to use the download attribute in a simple ASP. NET Core razor page. This is how the physical image files are placed : Ok. GetFiles imagePath. Then go to the Index. Skip to content. Change Language. Related Articles. Table of Contents. Improve Article. Save Article. Like Article. How to trigger a file download when.
0コメント