Question

I’ve tried a lot to find that how can I load an image from SQL Server to picture box but I couldn’t find very much helpful material.

First I saved image into the data-base with the help of following query:

insert into imageTest (pic_id, pic)
values(1, 'D:\11.jpg')

Now I want to load the image into a picture box.

Answer 1

You never uploaded the image contents to the database. That’s just the file name.

Say, as an example, that you have a file path to work with (it seems you do, given the question’s contents). In your application, you would upload this to the database following this format:

byte[] image = File.ReadAllBytes("D:\\11.jpg");

SqlCommand sqlCommand = new SqlCommand("INSERT INTO imageTest (pic_id, pic) VALUES (1, @Image)", yourConnectionReference);
sqlCommand.Parameters.AddWithValue("@Image", image);
sqlCommand.ExecuteNonQuery();

Please bear in mind that your pic field will more than likely need to change data type. A common type for this information is VARBINARY.

The next part is reading the file into a PictureBox. For this, you’ll need to SELECT the data out:

SqlDataAdapter dataAdapter = new SqlDataAdapter(new SqlCommand("SELECT pic FROM imageTest WHERE pic_id = 1", yourConnectionReference));
DataSet dataSet = new DataSet();
dataAdapter.Fill(dataSet);

if (dataSet.Tables[0].Rows.Count == 1)
{
    Byte[] data = new Byte[0];
    data = (Byte[])(dataSet.Tables[0].Rows[0]["pic"]);
    MemoryStream mem = new MemoryStream(data);
    yourPictureBox.Image= Image.FromStream(mem);
} 

And that should be about it. You might want to do better safety checks, but this should help you get started.