C# - Retrieve Mp3 File From Database?
Aug 19, 2010I have a question regarding how to retrieve an mp3 file stored as a byte[] array from the database and display it in a form and let the user to download/play it?
View 4 RepliesI have a question regarding how to retrieve an mp3 file stored as a byte[] array from the database and display it in a form and let the user to download/play it?
View 4 RepliesI have form for update product in which I have file upload control, in update product form i have retrieved all other details of product in appropriate text boxes like product name,price,etc. I also want to retrieve name and path of product image in file upload control which is uploaded using add product form. Is it possible to set path of uploaded file to file upload control.
View 1 RepliesI have a database table that works as a file repository. Currently there are binaries stored in there and I want to pull the "large" ones out in chunks. Some of these files are in excess of 500 MB. I have business rules that dictate if the file is >5MB to transmit in chunks. <5MB and I can load into memory and rip out. I got the uploading in chunks to work, but how do I get it to pull it out of the DB in chunks?
Right now I'm getting hit with a 'System.OutOfMemory' exception. But when I recreate the byte array of the SAME size (empty though) it doesn't break.
Download Chunks (DAL)
public byte[] getBytesByDataID(int chunkSize, string dataID) { string query = "SELECT data.data " +" FROM data " + " WHERE dataID = @dataID"; openConnection(); cmd = new SqlCommand(query, myConnection); cmd.Parameters.AddWithValue("@dataID", dataID);
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I need a place to store images. My first thought was to use the database, but many seems to recommend using the filesystem. This seems to fit my case, but how do I implement it?
The filenames need to be unique, how to do that. Should I use a guid?
How to retrieve the files, should I go directly to the database using the filename, make a aspx page and passing either filename or primary key as a querystring and then read the file.
What about client side caching, is that enabled when using a page like image.aspx?id=123 ?
How do I delete the files, when the associated record is deleted?
In gridview I have two link button that is "VIEW" and "DOWNLOAD" if I click "view" that pdf file will display in an other page if I click download that file will be downloaded.. how can i do this..
View 1 Replieshow can i store youtube or any other video URL or link in database and retrive from database
and what control i use in this in C sharp
i have created a table in sql server 2005 with two fields ImgId and ImageURL,where ImgId holds the serial number and Image URL holds the URL of the image file about where it is located in my hard disk.
Now i want to retrieve images from the database using its filepath.
I think i had done everything right,I tried to retrieve images in a gridview but dont know why it doesnt shows anything when i build the code.
How can I retrieve file information (size of file) before it is uploaded to the webserver?
I would like to create a multi file upload. I have it working in JQuery but I would like to know the size of the files to set a limition by summing up the total the file sizes together.
I try to retrieve data from SQL database it's more than one row here is the stored procedure
create procedure "GetPhoneNewUser"
im tryign to do an upload using an aspforview, does this mean i have to do a findcontrol for all the items to get the results?
as in the uploadfile func it cant find any of the fields, how do i do this?
also id like to get the filesize, type and name back so i can put them in a database
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I have a FormView through which I set up the default new, update and delete commands for communicating with an SQL Server database. When the CREATE command is executed the data is added to the database and some images are uploaded to a server and linked to the database.
When I press the Visual Studio's default FormView DELETE command I obviously only delete the selected row in the database and not the images on the server. I marked the uploaded images with images ID + "name" , so I could delete them if I could only retrieve the ID of the row being deleted by the DELETE command. How do I do retrieve the ID of the deleted row in C#?
In asp.net(c#),I use Linqtosql.. how to retrieve data from database(table) and display in textbox...?
View 5 RepliesHow to reterive sitemap from databse in asp.net?Can somebody can provide any link which explain the process.
View 1 RepliesI have 5 radiobutton list and 5 checkbox list.Data come for this radiobutton list and checkbox list from the database.
now after user selecte items from this control i want to retrive back those data with the price from the database.further more I am creating string from this checkbox list to display image.the string came from radiobuttonlist and checkboxlist values.I
I have an XML file and am able to retrieve by var TV= from Tin xmldoc.Descendants("{urn:Import}T")select T;
Now if I use foreach (var eachin TV){} it iterates..but ..the actual elements are in TV.Elements (eq: TVID, TVStatus etc). It looks like it is another level deeper..I am trying to get TV..for TVID = 6 and update TVSTATUS to say 1 from previous value.
I write the following code but there is an error. I just want to retrive the image which I have save into tha database from the sql server and to display in the picture Box(image)
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i have used Ado.net entity framework...how to insert an image to a table and retrieve it an show it.
View 21 RepliesOn my website, I'm using webservice to retrieve the data from (SQL Server) database. To improve performance, I like to use jQuery to retrieve the data from the webservice instead of using C#. The data values should be assigned to the drop-down list which I'm using in the aspx. Can anybody tell me how to do this? I'm a newbie to jQuery.
View 2 Repliesthis method is meant to retrieve two database field values, but i'm getting error: Must declare the scalar variable "@FlyingFrom".
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i got a Food table and a Notification table. each Food has an expiry date. I wish to put all foods which are going to expired into the notification table. since user can create new food anytime, how can i update the Notifcation table once got any new food (but with near expiry date) added? and how to make sure the Notification table retrieve the nearly-expired food everytime (mayb update once everyday??)
View 1 Repliesmy table name is "amountdetails"
it contains the following field "id","name","amount"
when the user enter the "id" in TextBox1 and click the button then the "name" and "amount" to that corresponding id should be dispalyed in the TextBox2 and TextBox3.
i have made a webpage for user registration where i have to save image of user in data base which i have done successfully but i am unable to retrieve that image
View 4 RepliesI want to get the customers info and companies of this companies of products they deal with here is my query in linq
var query = from sd in db.Survey_Details
select new
{[code]...
customer table has about 3000 customer who every one of them fill a survey of 2500 product till now survey_details table has about 90,000 recored an will increase by 100% every year this query run good without binding in RowDataBound when i want to work with RowDataBound this is too slow and data never come i think i may take about 5 hours to come
Is there a method to retrieve the file name of a class?
Specifically I would like to create a static method (CreateLink) in a base class (BasePage) to automatically return the path and filename of the page called.
I code in .C# ASP.NET
private const string TEMPLATE = "~/One.aspx";
public static HyperLink CreateLink()
{
HyperLink link = new HyperLink();
link.Text = "Click here";
link.NavigateUrl = String.Format(TEMPLATE);
return link;
}
Is it possible to avoid the use of TEMPLATE hardcoded variable? Is it possible to retrieve the One.aspx path from file name and location?
i am reading image from database (sql server) by using handler and getting it in memory stream. now i want to store that image on server in the folder named Images.
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