Actually I want to get a file and save its length, its MIME type, content into database in binary format.
It saved but not open in hander in correct format.
[code]....
Is it possible to convert a datatable into binary data and save it into on a binary field on database?
View 2 RepliesI read a delimited text file into dataset. i am writing these dataset values line by line in another text file. my C# syntax is :
[Code]....
How to write dataset value in text file in specified format.Is there any existing software that can do that for me.
I use Northwind database on C# syntax.HOw to write this product table information in above format.
I want to Save image into DB in Binary format without upload control i.e
I have avatar which i want to store by default with user creation.
i know all other steps except how to convert that particular image into binary against btn_CreateUser Click event
I wish to know how to convert the byte array file to a file in a string format and display it in a webpage. how can i perform this?
View 1 RepliesI want to read and write excel file . it can do with oledb , there is a limitation maximunm characters < 255 solution is mono data type , now create table become second sheet (when open excel it is shown as hidden.)
View 2 RepliesThe thinking behind the question is that my image current reads it's data from a custom httphandler that gets the image from the database. I want to be able to use a file upload control to "post" a replacement file back to a "write" handler, updating the database. Then I can refresh my image using javascript to the original "read" handler. Is this possible?
I currently have a standard postback model upload process which puts the image into the database and a custom handler to read it back. What I want to know, is can you create a custom http handler to perform the upload so I could asynchronously call the upload handler then refresh the image src to pull it back from the database. At the moment I am using the IFrame approach to make it appear asynchronous, I just want to know the best practice really
1. I have a file upload tool to get any file okay..
2. I want to get binary format of any file that i browse through upload tool and
3. I want to save it in another file say any text file or database or any custom file type
4. Now that i've binary format of any file say a image file, how can i recreate the file from it's binary content... all i need is....FIle to Binary and then Binary to Original File.
I want to save binary information like images, files ,etc to SQL server database.
View 1 RepliesI have one folder which contains the jpg images. That images i want to store binary format into sql server database. And finally that images binding in the DataGrid.
View 2 RepliesI have a problem with deserializing in C#/ASP.NET, which gives the exact error:
The input stream is not a valid binary format. The starting contents (in bytes) are: 41-41-45-41-41-41-44-2F-2F-2F-2F-2F-41-51-41-41-41 ...
What I am trying to do
I have a structure with 3 classes. I have a class A which is a base class, and then class B and C which are derived from A.
I am trying to store random types of B and C in the database using LINQ to SQL, in a column with the type VARCHAR(MAX).
I cannot use BINARY as the length is around 15.000.
My code...
[code]...
So the error happends when the first Deserialize method is run, with the above error.
I want to Export my gridview to Excel BIFF. Could any one suggest the approaches to do this.
View 2 Repliesthere are an access file . >> "test_file.mdb"
there are a table in mdb file .>> "test_table1"
and there are 2 columns in "test_table1" >> "name" and "age"
and i have 2 textbox in my web form . >> "textbox_name" and "textbox_age"
and i have a button for save textbox_name.text and textbox_age.text in mdb file .
i need adox vb code for save textboxs data in mdb file .
i have table and i save image into table format binarry,but i want zip this image that user can download multiple image from website
i wrrite this code but this code download one image......
//string name = item.Name;
//string contentType = item.FormatImg;
//Byte[] data = (Byte[])item.Image;
//// Send the file to the browser
//Response.AddHeader("Content-type", contentType);
//Response.AddHeader("Content-Disposition", "attachment; filename=" + name);
//Response.BinaryWrite(data);
//Response.Flush();
//Response.End();
What is the best way to insert and retrieve images like :
In the database in binary form retrieve it with imagehandler, or
In the database by saving the path of the folder of the images and retrieve it, or
by saving the images directly to the folder and retrieve it...
I have a binary file in database.How i can make a download of this file in header of page when a button is clicked
View 2 Repliesxml database..my question is i need to upload a word document to xml database.
View 1 RepliesMy Image is showing in Image Control from somewhere, now my question is that How to save that shown image from Image Control without Using FileUpload Control to Database in ASP.Net?
Actually i have got a task to implement web cam to grid from there user will click button, another window will pop up then he will capture that image, then that image will be shown in GridView, then when a user click Submit button all the images captured by the user got saved to database in the form of Image
I have referred the following article : [URL] .....
I am learning a tutorial, it is about saving mp3 files in database.
Have a look below picture i can upload a mp3 file multiple time with the same name how to avoid it?
[URL] ...
protected void btnUpload_Click(object sender, EventArgs e)
{
using (BinaryReader br = new BinaryReader(FileUpload1.PostedFile.InputStream))
{
byte[] bytes = br.ReadBytes((int)FileUpload1.PostedFile.InputStream.Length);
string strConnString = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
[Code] .....
I have been googling this and have not come along a working solution for an entire day. I don't know anything about binary data types (as I've never knowingly used them) and I'm trying to write a binary value that I see in the registry, to the registry. Now, all I see is the following [shown below]... and if I try to pass that as a string to the RegSetValueEx in the WinAPI and of course it errors out... I do not know what 'numbers' I need to pass into the lpData As Any, argument of RegSetValueEx (i tried a bit array) in order for it to come out as the following [shown below] in the regedit. I really have no idea, and my tests to place random numbers in the bit array just produce corresponding random "figures" as visible in regedit that I do not understand how to 'tie' them together logically.
here is the culprit!
[Code]...
If I had the following in a string or a bit array, what must I populate the bitarray with so that the registry outputs this [above] when written? or, how can I figure out how to do it? I was hoping there'd be a function that reads my string of binary data and transforms it into the real binary format to submit to the RegSetValueEx function in VB6 or other function in VB.Net or C# (this really is a language agnostic question, and the problem exists in all languages; ie: same process).
i have a table fileupload with id,username,filename,filedata,uploaddate here i have uploaded successfully...but i cannot retrieve the binary file uploaded by using its id. can anybody tell me how to read binary file from database using c#.net3.5?
I want to convert any file format into .txt. Save that file into access database, and forward that file to my client email.
I want to use Asp.Net C# 2.0.
I have a text area that allow user the type in an address in free format, how do I parse the address user entered into address1, address2, city, state, zip and country and save into DB?
View 4 RepliesI'm downloading a binary file from a SQL database to a client machine and want to instead download it to a folder on a server. THe code I'm using is below. How would I change the .AddHeader(I assume) to send the file to a folder on my server rather than the computer running the web page.Protected Sub download(ByVal dt As DataTable)
View 3 RepliesI want to download a file from database using asp.net c# code in page load event.My table design as below
Table Name: tblFiledownload
Id - int
Data - varbinary(MAX)
FileName - varchar(50)
FileExtension - varchar(50)
