SQL Server :: Get The Doc Type And Contenttype Of A File From The Filestream Field?
Dec 23, 2010Can we get the doc type and contenttype of a file from the filestream field?
View 2 Replies
Similar Messages:
FileStream And FileStream Buffer Size To Open A File?
Jan 25, 2010I've got a vb.net page that when a user clicks a button in a gridview, it copys the file (row seleted) in the gridview as "Label2" from the webserver to the users pc. (We had to setup a lot of security to get it so the webserver could copy to the users pc). I have that all working fine, but now, I'm trying to see if FileStream will then open the file that was just downloaded on the users PC. I'm not familiar with FileStream, and could use a little push in the right direction. (Disclaimer, yes I know downloading the file directly to the pc is a crazy thing to do, but it's a really long story. :-)
For the FileStream portion, I found this sample, but don't quite understand if I can incorporate it into my button click event. Here's the sample [URL]
[Code]....
[Code]....
[Code]....
DataSource Controls :: Sql Server Filestream / Table Stores The Documents And The Datatype Of The Field Is IMage?
May 27, 2010In of my application I am using the database to store and retrive images. The table stores the documents and the datatype of the field is IMage.
Now with Sql Server 2008, i would like to upgrade this to use this new feature. WHat changes do I have to make in terms of code and also in the database.
Web Forms :: Uploading A File To Server - Use ContentType To Filter Only Image Files
Oct 12, 2010I am using VB to upload image files to my server but am having problems. How can I use the ContentType to filter only image files? This is my code for my upload button which does not seem to be working. I can only upload bmp files:
[Code]....
Also, how can I show the user the image they uploade
Sql - Fileupload To Varbinary FileStream Field?
Feb 8, 2010I want to upload files from fileupload control and save them as varbinary Filestream in the database.
First of all, does this make sense? Would you recommend this?
Then, how does it work? I want to be able to upload Imagefiles as well as .doc and .xls.
so when i have uploaded a .xls, how would i save it to the Database(i'm going to use Linq2Entities).
AJAX :: Async File Upload Control - Check File Contenttype Before File Upload Starts?
Jan 13, 2010I am using the async file upload control to upload to a image file. I want the user to upload only jpg files. And for that I am checking the uploadedfile content type in server side, after the upload complets. I wanna check this, before upload starts. There is one javascript method
function startUpload(sender, args){}
but how to access the content type of the file selected by user.
Web Forms :: PostedFile.ContentType Value For .txt Or .csv File?
Aug 31, 2010I would like to validate the .txt or .csv file that is uploaded using PostedFile.ContentType:
<asp:FileUpload ID="fileUpload" runat="server" Width="525px" />
Is "text/plain" the correct value?
if (fileUpload.PostedFile.ContentType != "text/plain") ...
SQL Server :: Various Data Type Save In One Field?
Sep 28, 2010I use a ntext data type for all kind of data save in one field, but when i save byte (that converted from image) follwing message is shown "Operand type clash: varbinary(max) is incompatible with ntext". Is ntext suitable for all kind of data type or what will be compatible for all data type support?
View 2 RepliesSQL Server :: How To Convert Data Type In The Address Field
Mar 9, 2011How to i convert the data type in the address field? i keep getting an error
here is my code:
[Code]....
Sql Server - How To Change Type Of Database Field In Mvc Application
Jan 4, 2011I have an asp.net mvc 2 application with a SQL Server database accessed by the Entity Framework ORM. Now I found out I had used the wrong datatype for one of the fields in the database - int instead of double.
Now, this is not a big commercial application, but it is nevertheless already in use internally in my company. It works fine, but the users would need to be able to enter decimal values rather than just integers...
So my question is, can I change the type of the field after the fact so to speak, and not lose the data already entered? Of course I would have to change the references to this field in the model and everything that references it, but is it possible at all without losing the data?
SQL Server :: How To Insert GUID Type Value Into Uniqueidentifier Field Using Vb.net
Dec 14, 2010I am workining in vb.net and sql. In DB have a uniqueidentifier field and want to insert in it,
When try to send data, some thing parameter: ByVal value as GUID
In the query : '"& Value &"' then errors occurs " Operator & not define or supporting and System.GUID "
If do like that : '"& CAST(Value as uniqueidentifier) &"' then Says CAST undefined same with Convert.
SQL Server :: How To Convert String Data Type To Smalldatetime Field In Vb.net
Feb 22, 2011How To convert String Data Type to Smalldatetime field in vb.net
[Code]....
[Code]....
[Code]....
[Code]....
[Code]....
[Code]....
[Code]....
C# - How To Dispose Filestream When Implementing A File Download
Jun 21, 2010I have a class DocumentGenerator which wraps a MemoryStream. So I have implemented IDisposable on the class.
I can't see how/where I can possibly dispose it though.
This is my current code, which performs a file download in MVC:
using (DocumentGenerator dg = DocumentGenerator.OpenTemplate(path))
{
/* some document manipulation with the
DocumentGenerator goes here ...*/
return File(dg.GetDocumentStream(), "text/plain", filename);
}
This errors as the stream is closed/disposed before the controller has finished with it. How can I make sure my resources are properly disposed in this situation?
EDIT: My implementation of IDisposable at the moment just disposes the MemoryStream. I know it's not a proper implementation, I just used it as a test. Is there something different I could do here to make it work?
public void Dispose()
{
_ms.Dispose();
_ms = null;
}
Web Forms :: OutOfMemoryException Using FileStream With FAT BIG FILE For Send To Response?
May 11, 2010I'm using Filestream for read big file (> 500 MB) and I get the OutOfMemoryException. Any solutions about it??
I want this in my app:
Read DATA from Oracle
Uncompress file using FileStream and BZip2
Read file uncompressed and send it to asp.net page for download. When I read file from disk, Fails !!! and get OutOfMemory.
. My Code is:
using (var fs3 = new FileStream(filePath2, FileMode.Open, FileAccess.Read))
{
byte[] b2 = ReadFully(fs3, 1024);
}
// http://www.yoda.arachsys.com/csharp/readbinary.html
public static byte[] ReadFully(Stream stream, int initialLength)
{
// If we've been passed an unhelpful initial length, just
// use 32K.
if (initialLength < 1)
{
initialLength = 32768;
}
byte[] buffer = new byte[initialLength];
int read = 0;
int chunk;
while ((chunk = stream.Read(buffer, read, buffer.Length - read)) > 0)
{
read += chunk;
// If we've reached the end of our buffer, check to see if there's
// any more information
if (read == buffer.Length)
{
int nextByte = stream.ReadByte();
// End of stream? If so, we're done
if (nextByte == -1)
{
return buffer;
}
// Nope. Resize the buffer, put in the byte we've just
// read, and continue
byte[] newBuffer = new byte[buffer.Length * 2];
Array.Copy(buffer, newBuffer, buffer.Length);
newBuffer[read] = (byte)nextByte;
buffer = newBuffer;
read++;
}
}
// Buffer is now too big. Shrink it.
byte[] ret = new byte[read];
Array.Copy(buffer, ret, read);
return ret;
}
SQL Server :: Filestream Datatype - Difference?
Sep 7, 2010What is the difference between :enable filestream for t-sql statement and enable filestream for file i/o streaming access in sql 2008 when and how both feature works?
View 3 RepliesDataSource Controls :: Need To Store In MS SQL Server 2005 A Vary Large Text In To One Field Of Type Nvarchar?
Feb 13, 2010I have the following problem: I need to store in MS SQL Server 2005 a vary large text in to one field of type nvarchar(MAX), In spite of the configuration is apparently correct I keep receiving the following message in the exception: "string or binary data would be truncated".
View 1 RepliesC# - SQL Server 2008 FileStream Vs Normal Files?
Apr 4, 2011I am creating an application like youtube to store videos and I need some advice.Should I use SQL Server FileStream to store the video files or should I store them somewhere on the hard disk and record the path as a varchar(MAX) inside SQL Server?Which is recommended and why?Do you recommend something else apart from both these?
View 3 RepliesSQL Server :: Insert Photos In Database With Filestream Option?
Dec 7, 2010I want to create an sql table with photos, and i want to use filestream data.
View 3 RepliesSQL Server :: Upload Files (5MB - 50MB) Into 2008 By Using Filestream
Aug 28, 2010i have some files, and i need to upload these files into sql server 2008 by using filestream. lets take table name as custfiles,columns are fileid,filename,filepath,filesize.
1.how to create table using filestream?
2.how to insert file (record) into table from .net environment?
3.how to retrive that file from .net environment?
Security :: Sql Server 2008 Filestream Access Denied
Dec 20, 2010i use filestream in sql server 2008 and vs 2008(web project)
local pc (application server and database server are all in one pc):
no problem can do the filestream (i mean read and write)
connectionString="data source=ETACTNB10SA;database=XXXXXt;user=XX;password=XXXXX;Trusted_Connection=true;Integrated Security = SSPI;" providerName="System.Data.SqlClient"
network (one pc for application server, other one for database server )
if i use
connectionString="data source=ETACTNB10SA;database=XXXXXt;user=XX;password=XXXXX;Trusted_Connection=true;Integrated Security = SSPI;" providerName="System.Data.SqlClient"
problem is can not access database
if i use
connectionString="data source=ETACTNB11SA;database=XXXXXt;user=XX;password=XXXXX;" providerName="System.Data.SqlClient"
problem is filestream access denied (database can access, mean can do normal insert , update and delete)
code for read function of filestratm:
SqlTransaction objSqlTran = myConn.BeginTransaction();
Html - Accessing Input Type File At Server Side?
Jan 4, 2010I am using the <input type="file" /> tag to upload a file to the server. How do I access the file at the server side and store it at the server? (The file is an image file)The client side code is :
<form id="form1" action="PhotoStore.aspx" enctype="multipart/form-data">
<div>
<input type="file" id="file" onchange="preview(this)" />
[code]...
Web Forms :: Read File From Sql Server Varbinary (max) Field?
Dec 20, 2010I have a function that will take a file uploaded by a user of my system and store the contents of the file into a varbinary(max) field in a sql server database. I then display the filename of the file in a data grid for the user to see as a link button. When the user clicks on the link button, I want the file to be read from the database and served out to the user as a prompt to download the file. How can this be accomplished? The upload is fine, it is the download I can't figure out. Here is what I have so far.
[Code]....
I get the download to prompt, but it is showing the name of my .aspx page as the file to be downloaded.
Web Forms :: Firefox Cannot Detect The File Type When Downloading From Live Server
Apr 28, 2010i have some problem on downloading file which file types are .doc, .docx and .pdf.
I have wrote the code for downloading when the button is click. the button can download these three types of file when click.
[Code]....
But, i have some weird condition. when i test in my local pc using the firefox, the downloading box popup with the file type detected. but when i upload the code files in live server and test the download button using firefox, the downloading popup but it cannot detect the file type.
therefore, i can proceed the download process using the firefox but i failed to open the files coz it dun have the file type.
How To Read Inputstream From HTML File Type In C# Without Using Server Side Control
Sep 17, 2010I have the following form
<form id="upload" method="post" EncType="Multipart/Form-Data" action="reciver.aspx">
<input type="file" id="upload" name="upload" /><br/>
<input type="submit" id="save" class="button" value="Save" />
</form>
When I look at the file collection it is empty.
HttpFileCollection Files = HttpContext.Current.Request.Files;
How do I read the uploaded file content without using ASP.NET server side control?
How To Bind Image That Is Saved In Filestream Database Sql Server 2008 To A Image Control
Jan 6, 2010i have used filestream of sql server 2008 for storing images. i want to retrive that image and bind to image control.but not getting the correct path.
View 2 Replies
