error in C# code : Must declare the scalar variable image

Question

{

string image_name = "";

SqlCommand cmd1 = new SqlCommand("Select Image from Slider_Data where Section=@Section", con);

cmd1.Parameters.AddWithValue("@Section", ddlsection.SelectedValue);

con.Open();

SqlDataReader dr = cmd1.ExecuteReader();

if (dr.Read())

{

image_name = dr["Image"].ToString();

}

cmd1.Parameters.AddWithValue("@Image", image_name);

con.Close();

}

cmd.Parameters.AddWithValue("@Description",CKEditorControl.Text);

con.Open();

int i = cmd.ExecuteNonQuery();

if (i == 1)

{

Response.Write("<script>('Updated Successfully')</script>");

}

con.Close();

}

}

catch(Exception ex)

{

Response.Write(ex.Message);

}