Adding an image to SQL database using Visual C#

Question

I am working on a visual C# program for image processing.I am trying to add image to sql database using Visual C# (Windows forms) and ADO.NET.

I have converted the i

Answer 1

Execute this stored procedure:

create procedure prcInsert
(
   @txtEmpNo varchar(6),
   @photo image
)
as
begin
   insert into Emp values(@txtEmpNo, @photo)
end

Table Emp:

create table Emp
(
   [txtEmpNo] [varchar](6) NOT NULL,
   imPhoto image
)

Answer 2

Try with something like this:

byte[] fileBytes=System.IO.File.ReadAllBytes("path to file");
System.Data.SqlClient.SqlCommand command = new System.Data.SqlClient.SqlCommand("insert  into table(blob,filename) values (@blob,@name)");
command.Parameters.AddWithValue("blob", fileBytes);
command.Parameters.AddWithValue("name", "filename");
command.ExecuteNonQuery();

Answer 3

The selected file stream should be converted to byte array.

        FileStream FS = new FileStream(filepath, FileMode.Open, FileAccess.Read); //create a file stream object associate to user selected file 
        byte[] img = new byte[FS.Length]; //create a byte array with size of user select file stream length
        FS.Read(img, 0, Convert.ToInt32(FS.Length));//read user selected file stream in to byte array

Now this works fine. Database still shows < Binary data > but it could be converted back to image using memorystream method.

Thanks to all...

Answer 4

Assuming that you are using VARBINARY to store your image (which you should be), you may need to make your SqlParameter more strongly typed:

So instead of

cmd.Parameters.Add(new SqlParameter("@Imgg", image));

You would use:

cmd.Parameters.Add("@Imgg", SqlDbType.VarBinary).Value = (SqlBinary)image;

You could also use System.IO.File.ReadAllBytes to shorten your code turning a file path into a byte array.