How To Save Image And PDF File In SQL Server And Retrieve Using C#
Aug 17, 2012
I am having one Event Registration form in that I need to provide one control with which user can attach file it may be pdf file or jpeg(Image). Any sample so that to save pdf file or Image file in DB and how to retrieve it.
I'm trying to write code that will allow a user to click a button and be prompted to save an image file that resides on the web server. I'm using the following code, but I get an error that says "Error: Could not complete the operation due to error c00ce514.".
I have verified that the file exists. Is there another method for prompting users to save a file to their local machine?
I need to create a database in SQL2005 on a webserver (manually (not in code)), have registered users upload an image to a webserver not overwriting if the filename already exists but to append if required Weekly, I wish to review the uploaded images in the uploaded folder, create a user & add the image(s) into the database programmatically for all users to be able to search / When the image(s) are in the database & are searched or shown (ex: profile shown with all those details/pics displayed but before displaying the pics on the form to watermark them. However, a profile could have 1 pick or it could have 20. I would like to have for example 4 pics being shown then the user to click next till the end of the recordset. Then do the same for another profile. Uploading the file is fine but not to append if exists then maybe I should have an upload date as the filename (haven't decided)
I am using daab in my web application,and 1 module requires me to insert and image and retrieve it accordingly,i would use the ID to retrieve the image,i have done this using ado.net and it works great.i am now getting used to the daab so i decided to use this.My application consists of a businesslogic layer which contains 1 class file,Images.cs.The application inserts the image and now I just want to retrieve it.I have also looked at this article http://davidhayden.com/blog/dave/archive/2006/05/19/2948.aspx,but I cant implement the retrieve image part.Also he is using windows forms,(picture box) I am using a web form!Below is my code.First will be my business logic images class and then my web form.All i want is to retrieve my image from sql now
IMAGES CLASS IN MY BLL,THIS IS REFERENCED TO MY PRESENTATION LAYER
I am retrieving an image from SQL Server to display on a new page in my ASP.NET 4.0 application using this method (one of my posts):
How to display an image based on SelectedValue in a GridView?
I am then displaying the image in a new window using this method: (one of my posts):
How to display an image in a new window
What I am trying to do is get the height and width of the image so that the new window is created with the same height and width as the stored image. I guess there are two ways of doing this:
Create a height and width column in my database and store the values when the image is inserted into the database Retrieve the image from the database and calculate somehow the height and width just before displaying it and then resize the browser window to the right size.
I already have over 150 images in the database so that makes option 1 difficult because I would have to go back over my db and calculate height and width for images that are already in the db. Therefore I would prefer to use option 2, or maybe there's another option? How would I go about doing this?
So while working on my project on local system, i need to generate a barcode and save it to a folder then retrieve it to attach it in an email to send to user, i got the barcode generator code somewhere on these forums (thanks for sharing) and used it and it worked perfectly, generated the code as image, saved the file to a folder on the local system, retrieved and attached it to email and sent it with no probs.
Next, i uploaded the files to online server to go live, i test, no barcode is getting saved :S, i'm guessing it shouldn't be that easy, guess i have to do some stuff before i can save it to a folder on the server,
Here is the barcode generator code:
At the same time, can you also include how to retrieve it for later use ?
currently i use this to retrieve it from the folder on local system:
I have written a website and let the user upload their photo. It also resizes the picture to 400 x 400 and crops automatically to the center part of the picture. All of this works good but each file is about 355K each for JPG and PNG file formats. I just tried GIF and it is 49K but the picture is grainy when saved this way. Is there any way I can get the picture to a smaller file size with keeping it at 400 x 400? I really thought PNG would be the way to go and was surprised by it being the same as jpg. I don't want to lower the quality either for JPG files.
i have a requirement where user can edit the image in the flash tool runtime and i am saving the image to the server ...but now i have to give the option to save the same image to the localhost.one more thing is i am passing the parameters frm the flash tool to another page and doing all the operations on that page like save and download.
here click on the add your logo link then in the logo tab you can upload any logo from localhost then on the save tab i have to save the image to the server and then download it but both should be done at the same time i have done the save code but unable to downlaod it.