Save Images And Data Files In Database Table In Binary Format

In this blog, we will learn, how to save the files in the database table. We will make a Web Application. It is a secure way to save the data files/images in the database in the table.

Let’s start.

Database part Work

1. First, we create a table in SQL database.
   
   Eg:
   

   CREATE TABLE[dbo].[tbdata]
   (
       [Blob][varbinary](max) NOT NULL, [Name][nvarchar](256) NULL, [Contenttype][nvarchar](256) NULL) ON[PRIMARY] TEXTIMAGE_ON[PRIMARY]
   )

Visual Studio

1. Open Visual Studio. Select File >New > Web Site,
   
   
2. Name it as you want. My application’s name is SampleWeb.
   
   
3. First of all, Open Solution Explorer and right click on ( Website Name) > Add > Add New Item > select Web Form.
   
   
4. Add file uploader, Label and button in Default.aspx page.
   
   Eg:
   

   <asp:FileUpload ID="FU1" runat="server" /> <br /> <br />
   <asp:LinkButton ID="lb1" runat="server" Text="Submit" OnClick="lb1_Click" /> <br /><br />
   <asp:Label id="Label1" runat="server" />

5. Add code on default.aspx.cs page,
   
   Eg:
   

   protected void lb1_Click(object sender, EventArgs e)
   {
       if (FU1.HasFile) {
           try {
               string content_type = FU1.PostedFile.ContentType;
               string filename = FU1.PostedFile.FileName.ToLower();
               SqlConnection conn;
               SqlCommand cmd = new SqlCommand();
               conn = new SqlConnection("Data Source=DESKTOP-C4AN6J2\\SQLEXPRESS;Initial Catalog=test; Integrated Security=true;");
               conn.Open();
               BinaryReader br = new BinaryReader(FU1.PostedFile.InputStream);
               Byte[] bytes = br.ReadBytes((Int32) FU1.PostedFile.InputStream.Length);
               cmd.CommandText = "Insert into tbdata (Blob,Name,Contenttype)values( @bytes,@Name,@Contenttype)";
               cmd.Connection = conn;
               cmd.Parameters.AddWithValue("@bytes", bytes);
               cmd.Parameters.AddWithValue("@Name", filename);
               cmd.Parameters.AddWithValue("@Contenttype", content_type);
               cmd.ExecuteNonQuery();
               cmd.Dispose();
               cmd.Connection.Close();
               Label1.Text = "Uploaded Sucessfully";
           } catch {
               Label1.Text = "Not Uploaded Sucessfully";
           }
       } else Label1.Text = "No Upload";
   }