Display same image from database on the next page

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I am working on a website where I am facing a problem, I am beginner so please don't get angry on me. My question is: I have uploaded an image file into database and displayed it in the box simultaneously. Now what I want is when I jump to next page the same picture will appear in the box there so I can do some resizing of it.

What I have done so far is following piece of code but no success it is giving the error

HTML

Must declare the scalar variable "@id"

I have google for solution but there is no solution I'd found that working for me, any help will be appreciated, thanks in advance

ASPX Part is:

C#

<asp:Image ID="image" runat="server" ImageUrl='<%# Eval("image") %>' width="450" />

CS Part is:

C#

SqlConnection con = new SqlConnection("Data Source=Tim-PC\\SQLEXPRESS;Initial Catalog=AP_Data;Integrated Security=True");
        protected void Page_Load(object sender, EventArgs e)
        {
            SqlDataAdapter sda = new SqlDataAdapter("SELECT image FROM photo WHERE id=@id", con);
            DataTable dt = new DataTable();
            sda.Fill(dt);
            GridView1.DataSource = dt;
            DataBind();
        }

Posted 6-Jul-14 21:33pm

Member 10922838

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Raul Iloc · Answer 1 · 2014-07-06T22:14:00

1.The error is generated by the error in your SQL string. You have a parameter "@id" that was not linked with a value before to use the SQL in adapter.

2.The solution for the error is to create a SQL command and to set the value for the @id param, before to create the adapter:

C#

SqlCommand command = new SqlCommand(commandText, con);
command.Parameters.Add("@id", SqlDbType.Int);
command.Parameters["@id"].Value = imageID; //here must be the image ID!
SqlDataAdapter sda = new SqlDataAdapter(command); //Create the adapter based on the command!
//... your code...

3.The answer to your 2nd error from your comment to my solution is: you have to correct your code from your page like below:

ASP.NET

<asp:Image ID="image" runat="server" ImageUrl='<%# string.Format("image-size.aspx?id={0}", Eval("id"))%>' width="450" />