Web Form File Upload

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I am making a Batch File upload wizard in VB.Net. The problem is that I am having a hard time figuring out how to upload the file through the web form. I need the code to fill in the Browse for file form control thing and then tell it to submit. I am just having a hard time getting it to put the file in the Browse thing. Does anyone know how to do this?

Thanks!

Posted 8-Oct-10 19:20pm

Matchlighter

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Ankur^\m/ 11-Oct-10 1:04am

I have left a reply to your comment for which you won't be notified, I guess. So, this comment.

Ankur^\m/ 11-Oct-10 2:18am

Check the links that I have provided as a comment to my answer. Hope they help!

Ankur^\m/ 11-Oct-10 3:25am

I have replied to your query. Please check.

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Ankur^\m/ · Accepted Answer · 2010-10-08T20:41:00

Solution 1

Read this MSDN article - Uploading Files in ASP.NET 2.0[^].

It also describes how to upload multiple files to the server.

Posted 8-Oct-10 20:41pm

Ankur^\m/

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Matchlighter 9-Oct-10 14:09pm

Thanks for your reply, but the web form is not mine. I am creating a regular VB.Net WinForms project that will fill in a form and then submit it.

Thanks for your reply :)

Ankur^\m/ 11-Oct-10 1:02am

I am still not very clear. Could you please give more details?

Matchlighter 11-Oct-10 1:16am

Basically, I am try to make an automatic web form filler. The web form that I am trying to fill out is designed to upload files, more specifically, images. I am having a hard time getting my program to set the input box to the file. I hope this is more clear.

Thanks for your willingness to help me!

Ankur^\m/ 11-Oct-10 1:24am

Okay, so there is a web application through which files can be uploaded to the web server.
You want to develop a windows application which opens that web page and sets the path of the fileUpload control to a specified path. So basically you want to automate the file upload, right?

Ankur^\m/ 11-Oct-10 2:17am

I have few links that might help you:
http://www.farooqazam.net/c-sharp-auto-click-button-and-auto-fill-form/
http://www.codeproject.com/KB/cs/mshtml_automation.aspx
http://www.eggheadcafe.com/community/aspnet/2/10170265/auto-fill.aspx
http://forums.asp.net/p/1500080/3826756.aspx

Hope these help!

Matchlighter 11-Oct-10 2:50am

Yes, that is what I want to do. I have actually done a bit of googling my self. I have code, but the code won't fill in the upload box. Here is the code right here: WebBrowser1.Document.GetElementById("ctl00_cphRoblox_Uploader").SetAttribute("value", Decals(Current))
I have double checked the element Id, and it is correct. Is there a mistake that you see that I do not? The 'Decals' variable is a List of strings.

Thanks again!

Ankur^\m/ 11-Oct-10 3:24am

Firstly,
Always, use controlName.ClientID instead of 'ctl00_cphRoblox_Uploader'. So, it will be like: WebBrowser1.Document.GetElementById("<%=cphRoblox_Uploader.ClientID %>").SetAttribute("value", Decals(Current))
(You can directly use controlName in higher versions of .Net framework).

Finally, and most importantly, you cannot set the value of a file upload control using javascript. That would have been a security threat, if allowed. Because a hacker can write a javascript to get any file from a client's computer.
I even don't know if there is any workaround for this. I will check and let you know if I am able to find one.

Hope this helps!