Progress bar in js vb net when downloading file

This is my code:. Now I know that the place where the file is saved has been inputed manually by me , but I will change that later. My problem currently is that the file is not being downloaded. However with the DownloadFile method I will not be able to use the progress bar to track the download progress.

Any help is much appreciated Don't know what you mean, when you say that the file isn't downloaded? Nothing happens at all? Did you place breakpoints, debug. Import System. Threading and System. In this sample, the data from the web is downloaded into an array, but you can of course also write it into a file, or do whatever you want with the data. How are we doing?

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Create a free Team What is Teams? Net using jQuery Uploadify Plugin. And the answer is Uploadify plugin for JQuery which does the same in few simple steps. Step 1. Net website application. Step 2. Start Visual Studio, create a new website and do as done below.

Inherit the following files you downloaded earlier in the head section of the aspx or the master page. Add an ASP. Net FileUpload Control to the form tag. Place the following script in the head section or the ContentPlaceHolder in case you are using Master Pages. As you can see we need to specify some settings along with the FileUpload control. The complete list of settings and their description is available here. Important setting to point out is 'script' : 'Upload. Below is the code for the Upload.

Files[ "Filedata" ];. AppSettings[ "FolderPath" ];. MapPath tempPath ;. Exists savepath. CreateDirectory savepath ;. Message ;. Imports System. Net; Now on the Click Event of the Button write code like below.

DownloadFileAsync new Uri textBox1. GetExtension textBox1. Here we take one webclient object and simply call download downloadfileasync method and pass two parameters "url of file to download " and "location at we want to save the downloaded file". Now main part comes that we want to show progress bar increment when downloading file declare event handler. And define Declared Event like below. The loop will make it easier to to ReportProgress to the ProgressBar.

Once that works as it should, I would use a Timer to update the Progressbar ever milliseconds, not for every byte that you read or write. Perhaps someone feels inspired enough to write it for you. Mark the best replies as answers. No, that is not a good way of doing that. How many times per second would you estimate that you are updating the ProgressBar? There is no need to update the control more than times per second, which why I suggested using a timer to update the control. The WinForms Timer control is not accurate for interval settings less than roughly 50 milliseconds.

Without running it, I would expect your code to "hang" and a call to Application. DoEvents "fixes" it. The problem is that your code updates the control so fast that it cannot repaint before you update it again, which forces another redraw. Calling DoEvents simply forces the OS to begin a new repaint without waiting for the control to be completely redrawn from the previous update.

How fast are the updates to the PB being performed? Use System. Stopwatch class to find out. If it cannot work without a call to DoEvents, then you are probably updating the control much too quickly WriteByte sr. DoEvents End If Next sr. Close sw.