معادل کدبرای بازیابی عکس

[Iran58]

باسلام
معادل کد زیر در inq چیست
try
{
SqlConnection con = new SqlConnection("server=.\\sqlexpress;trusted_connection=yes;databa se=test;");
SqlCommand cmd = new SqlCommand("select * from tb_pictures where filename='"+listBox1.SelectedItem.ToString()+"'", con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
SqlCommandBuilder cbd = new SqlCommandBuilder(da);
DataTable dt = new DataTable();
da.Fill(dt);

byte[] arrPicture = ((byte[])(dt.Rows[0]["pic"]));
MemoryStream ms = new MemoryStream(arrPicture);
pictureBox2.Image = Image.FromStream(ms);
pictureBox2.SizeMode = PictureBoxSizeMode.StretchImage;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}

[parvizwpf]

YourContext.tb_pictures.SingleOrDefault(x=>x.filename==listbox1.SelectedItem.ToString();