Storing And Retrieving Images With MVC And Sql Server?
Jan 15, 2010
I am designing an prototyping an app the needs to store images, similar to facebook. This will be a public facing site and I am not sure how many users I will end up with but what I am looking for is a way to efficiently retrieve them.
So far I am thinking of storing them in SQL Server varbinary columns. I have the upload code and the storage code for that. My concern is retrieving them. I can retireve and build the image tag on the fly but I am worried about having to hit the database for each one.
I have been thinking about getting all images for a user and caching them in the asp.net cache for 10 to 30 seconds. I have never had to do something like this so I would be interested in hearing a few different approaches. Obviously the images can vary in size and I was thinking about defining a size limit, but I haven't gotten that far yet.
i am a beginer and i want to know how to store images in the database tables like pictures of the pizzas and when the user selects one of the pizza from the dropdownlist he sees the image of the selected pizza.
The value placed in my table ends up being either "True" or "False".
So when I try to query the table based on that value with a stored procedure it doesn't work since its looking for a 1 or a 0.
I think the .ToString() is part of the problem but i don't know the syntax to have the value from the CheckBox.Checked to be written as 1s or 0s instead of true or false.
I am storing image (jpeg) files into SQL server 2005 using MS Access Forms. When I try to read and render it on a webpage using ASP.net and C# code behind, it could not read it.
But if I write the image to SQL server using ASP.NET C# and then read it back using ASP.NET C#, it render the image just fine in the browser.
Does anyone know if Access write the blob is difference than ASP.NET write the blob into SQL server? I am using the same varbinary as my column in the database.
I am trying to build a small e-commerce website that will allow user to upload and store the image of their product in the database and also the user could upload the image of the product and compare it with all the similar product images that are already stored in the database. I am using MS ASP.Net using VB.Net as the front end.
if MS SQL server is the best option to carry out such task or should I consider some other database to do this in terms of complexity involved as well as the integration with MS .Net framework.
I am facing a problem with retrieving an image and showing it on asp.net grid. I migrated MS Access database to sql server. Image are visible in Crystal report when fetched from the same database (migrated sql server database). But same images are not visible in ASP.Net grid view or simple asp.net image control. Following is my code
SqlConnection oConn = new SqlConnection(ConfigurationManager.ConnectionStrings["csr"].ToString()); oConn.Open(); SqlCommand oraCmd = oConn.CreateCommand(); oraCmd.CommandText = "select top 1 photo from [test] where photo is not null"; SqlDataReader dr = null; dr = oraCmd .ExecuteReader (); if(dr.Read ()) if (dr["photo"] != null) { Response.ContentType = "image/gif"; Response.BinaryWrite((byte[])dr["photo"]); }
This function is getting called from another page . "hlopen" is hyper link in the grid. hlopen.NavigateUrl = "GetPhoto.aspx?id=1";
I'm building a web system and various clients will have alternate text for default instances throughout the site. One place is the main nav but there are others. The default may be "project" but they may want to call it "event".I'm heading down the road of calling all the terminology settings (there's a list of about 15) and creating an ArrayList that has the id and either the default or their replacement as the items in the ArrayList.I've also got a enum key list called TermKey that has the defaults and the corresponding ID number.
Throughout the code I'll reference TermKey.Project and then do one of these things that I see as options. 1-pull the text from the session (if the client has set it to "event" then the text "event" will be waiting for the call there)2-pull the text from the database every time I need it.3-pull the client's list each time a page loads.Some thoughts on the impact each way or if there is a best practice for
I am having two aspx pages(Page1.aspx,Page2.aspx).I am stioring values in Session in Page1.aspx and retriving the same values from Page2.aspx.But if the session value is null I am getting an error as 'Object reference not set to an instance of an object.'Here is my code..
I need to retrieve Username from the login page in my ASP.NET application so that it is available in other pages also. I am using VS2008. Is there any other of getting the value other than storing them in session.
i want to store images of my employees with thier profiles in sql server database.i have following reservations.whether i should compress images or not if yes please provide me sample code or article how should i retrieve images efficiently, i an afraid of asp.net application performance issue. i think with ten thousand employee records it will halt or slow down
I'm working on an application which will store around 50.000 images within it's first year and another 75.000 in it's second. Images can come from Galleries, news images, article images and profile images. So I want to give each image a GUID and store the GUID in the database.As for the directory structure i was thinking of something like this:
So I'm using the first 4 characters of the GUID as my directory structure to spread images a bit more evenly between directories. Now I have some questions about this approach:Is it considered good practice to store all different kinds of images together rather then use ~/Images/Upload/Profiles, ~/Images/Upload/Articles etc.I'm also storing thumbnails and they have a different GUID obviously so the thumbs will not be in the same folder as the original and somehow that doesnt give me a good feeling but I guess it should not matter but.Same goes for Galleries, I'm used to store galleries in folders like ~/Images/Upload/Galleries/12 , and now all the images from a gallery will be scattered around in different subfolders, is this a big performance hit?Do you guys have any other ideas for directory structures?
As you can probably see I'm a bit afraid to use this approach but since there will be lots of images maybe even more then the numbers i gave i have to let the control go I think :)
I'm building a Web application that will eventually contain a lot of images. These images will need to be displayed in different formats across the site. What would be the pros/cons of the two solutions:
Storing various versions of the picture when they are uploaded (e.g. thumb, small, medium, large, verylarge) Resizing the image through the URL - e.g. /Content/Image/1?height=300
Edit:I had a really hard time accepting one answer over the other, so for anyone reading this q/a, take your time to read both answers because the accepted answer was selected by the flip of a coin :) They're both equally good.
I suppose this question has been asked to death all over the web, but I can seem to find a clear cut answer. What I am trying to achieve is as follows: I have a web application that lists various products, their descriptions, names etc and also an image of that specific product. The user will type in a product code or name of the product and a page will pop up with al the previous mentioned info and image or images of that specific product. The problem I am having is: I read somewhere that storing images in a database is 'bad idea' since it effects performance, then I read somewhere else to keep it in the images / or app_data folder. But what would be the best approach and how would I call it from the database (if that's the best way)? And if App_Data / images are the way to go how many images can I put in there (??) already the product catalog has several hundred images of various products. So how would one go about sorting everthing in those folders without having a few hundred images rolling down in my solutions explorer.
i m developing website using asp.net with microsoft access 2003 i have product details along with the images now i want to add this images into database but how i add this pictures what code is use if there are 100 products with 100 images i want to show 10 records per page i need also code of that
i m developing website using asp.net with microsoft access 2003 i have product details along with the images now i want to add this images into database but how i add this pictures what code is use if there are 100 products with 100 images i want to show 10 records per page i need also code of that
I have an application that uses an Asynchronous HttpHandler for retrieving images from a fileshare It appears the performance of this is quite poor. I have two questions:1. Does it make sense to use an IHttpAsyncHandler for this or will an IHttpHandler work fine? I have four images on a page that need to be loaded this way and it seems that they all load sequentially instead of in parallel. Since we have some JavaScript in the body onload event, it doesn't get excuted until all four images are finished loadingy bearing on this.
I'm working in ASP.NET 4.0, and I've got a large web form which represents a single business entity. A user can upload multiple images associated with the entity. The entity is created and assigned a GUID upon submitting the form. The files will be stored to a file system.
The problem is that we have to name the files after the GUID that is assigned to the entity after it is inserted to the database. So before the submit button is clicked, we will have several image files floating around in limbo.
There are obvious answers to this question -- you save the images to the file system and then when the business entity is created, you rename those files. However, I believe that there must be very strong patterns and several key details that would make for a very robust system. What's best practice for this scenario?
Friends have quick question for you.i want to know storing videos and images into database(binary data) or local hard drive is efficent. What way general websites stores them in their websites.
I store images in mysql as a longblob. The image control only takes an imageurl, so I have to have an ashx page serve up the images and then the image control uses that page as the imageurl. It works, but does that mean I have to do this for each image, kinda gets complicated for a lot of images.
Or should I just store the images on the hard disk? I am worried though about the space I would need if my site grows, as I want it scalable.
I want to create a page that will dynamically change the images displayed, based on which link the user clicked to get there. For example I have different movies listed and when you click a link for one of them it displays all the images for that movie. I need it to be on one page because at the moment I have hundreds of pages and its very hard to manage. I have the images stored in BLOBS on SQL Server 2005. I can retrieve all the images for a certain category and store the Image data for each one into a list of images. What I cant do, is display the images on the page. I can display one image by using the queryString to get the image by ID, then putting the Eval code into an asp:image, but I dont know how to do it for multiple images.
