Web Forms :: Upload Picture From Desktop Code Seems Correct But Doesn't Work?
Feb 25, 2010
I am trying to do some code where a user will be able to upload a .JPG picture from the users computer. I have put the controls and also written the C# code wich in my eyes seems to be correct. What happens in the code is that the uploaded picture will replace the existing "TopHeader.JPG" picture.
However when I run the code after I have choosen a .JPG picture from the desktop on my computer. Nothing happens except of a postback of the page.
I wonder what I can be missing out in order to make this work. (I attach both the HTML code and the C# code, I will be happy to know what I could be missing out)
I have an ASCX component that has a lot of javascript declared in a script tag in the ascx itself. I can set breakpoints, and the debugger stops as it should, but the text that is highlighted in the debugger as the "current line" is nowhere near the actual javascript (it is much higher in the rendered file than it should be). I can "wing it" for one or two lines with the real code side-by-side with the "false" line of execution, but I lose all the hover abilities and everything else that makes javascript debugging useful.
I have tried putting the script at the top of my ascx file, but to no avail. I've tried not setting a breakpoint until the entire page is rendered, so that I have to scroll all the way to where the actual lines of code are, and the debugger still stops somewhere way above it.
I am trying to set the Backcolor of this TabPanel in code behind. But the color of the TabPanel is still white. I also tried the TabContainer with no success.
I have a gridview that shows when something is check out. I would like to only show results from todays date and forward. I have done this in Expression Web but when I tried to use the same code in Visual Studios it doesn't work.
I have a problem with upload a picture from desktop to a folder on server. The problem is that it seems to work about 1 of 10 times wich confuses me. Perheps something with this code is not enterily correct ?
First I check for if Pic1.jpg or Pic1.gif exists and then delete it if it exist. Then I want the uploaded picture to be named the same. Pic1.jpg if it is .jpg format or Pic1.gif if the uploaded picture has a .gif format.
Iam using a file upload control for uploading files in my asp.net application. iam using the following code to impersonate the users who do not have permission for the files to upload. The code works fine for all the files, but it is not working for the files which are in desktop.
I have a Report a Bug page added to a small site; I have a text box where a user can type a text that will be submitted to a table in my db; how do I implement the upload of a picture, let's say a screen capture? the most convenient way (for the user) would be to be able to press the Print Scrn button and then paste it to my text box ... well, I'm sure this won't work ...
I do a gridview code that when displaying the information that come from the database is not showing any error at all, but is not displaying the right picture. The problem, I think, is that the (Eval("....") is not reading the values that are coming from the DataKeysNames. Due to this the right pictures are not displayed. But in another column, just for testing purposes I was able to display the values from DataKeysNames with the Eval. So I do not know what is going on and to make worse browser is not giving me any error. So, this is the line that is not processing, reading or executing well:
I tried the code from this article. And I got the same mistake " the parameter is not valid ". Maybe I'm not aware of something, some setting in sql server or webconfig or sth else. Anyone else who has experience from fetching images from database? The parameter is not valid is the error message. db table contains data. What am I doing wrong?
I want to add picture to my SQL database using file Upload control but I don't know which attribute should I use also I don't know how to add it in the stored procedure,
I want to change the web site where the IIS is. My desktop doesn't have IIS. Therefore, when I hit F5, the project will try launch my ASP.NET Web Application Project from http://localhost I needs to it to launched from [URL]. How can I change the configuration so the web page with URL starting as [URL]? I need it to confirm that the project is being served by the ASP .NET development server.
Iam using a file upload control for uploading files in my asp.net application. iam using the following code to impersonate the users who do not have permission for the files to upload. The code works fine for all the files, but it is not working for the files which are in desktop.
Code in .cs file:
System.Security.Principal.WindowsImpersonationContext impersonationContext; impersonationContext = ((System.Security.Principal.WindowsIdentity)User.Identity).Impersonate(); //Insert your code that runs under the security context of the authenticating user here. impersonationContext.Undo();
I am uploading member's picture into my database. However, there are instances that the member will not upload its photo. In this case, I'd like to upload instead a picture that is stored in my web app's folder. How am I going to get the picture and store it in my database.
I have a program where the user can do the following
1. Browse to an image
2. Click on the Preview button to view the image
3. Click on the upload button
When the user clicks on the PReview button I am storing the path to the image in a Session variable since the path is lost and then when the user clicks on the upload button then I am grabbing that value from the Session value however I realize that this is not the best way. the user could change his mind and start over again but the session value would have the old image.
I would like to use viewstate but I am using this in a child page of a master page and no form exists?
so the question I have is are you able to use viewstate in a content page like this?
For the upload control I need to fill in the path to the image when it's cleared out after step 2. When the user cliks on the Preview button this value is erased on the page.