Displaying blob data in a picturebox

[wschlichtman]

I'm attempting to retrieve a bitmap from an image field in SQL Server 2005
using Visual Studio 2005 C#. I then want to load the bitmap into a
picturebox. When I run the following code, I get the error message:

Parameter is no valid.

Debugging shows that the Image.FromStrea m(ms) statement is the culprit.

Anyone know what I'm doing wrong?

-----------------------------------------

using (SqlConnection sqlConn = new SqlConnection(b uilder.Connecti onString))
{
sqlConn.Open();
SqlDataAdapter sql = new SqlDataAdapter(
"SELECT Picture FROM Pictures WHERE Pictures.CardID =5", sqlConn);
DataSet ds1 = new DataSet();
sql.Fill(ds1, "Pictures") ;
DataRow dr = ds1.Tables["Pictures"].Rows[0];

byte[] result = (byte[])dr["Picture"];
int ArraySize = result.GetUpper Bound(0);

MemoryStream ms = new MemoryStream(re sult, 0, ArraySize);
pictureBox1.Ima ge = Image.FromStrea m(ms);
sqlConn.Close() ;
}

[Morten Wennevik]

Hi wsclichtman,

I'm guessing SQL Server 2005 uses the same image header as 2000, so you need to remove the first 80(?) bytes from the stream before creating a Bitmap out of it.
On Tue, 20 Sep 2005 02:23:02 +0200, wschlichtman <ws**********@d iscussions.micr osoft.com> wrote:

I'm attempting to retrieve a bitmap from an image field in SQL Server 2005
using Visual Studio 2005 C#. I then want to load the bitmap into a
picturebox. When I run the following code, I get the error message:

Parameter is no valid.

Debugging shows that the Image.FromStrea m(ms) statement is the culprit.

Anyone know what I'm doing wrong?

-----------------------------------------

using (SqlConnection sqlConn = new SqlConnection(b uilder.Connecti onString))
{
sqlConn.Open();
SqlDataAdapter sql = new SqlDataAdapter(
"SELECT Picture FROM Pictures WHERE Pictures.CardID =5", sqlConn);
DataSet ds1 = new DataSet();
sql.Fill(ds1, "Pictures") ;
DataRow dr = ds1.Tables["Pictures"].Rows[0];

byte[] result = (byte[])dr["Picture"];
int ArraySize = result.GetUpper Bound(0);

MemoryStream ms = new MemoryStream(re sult, 0, ArraySize);
pictureBox1.Ima ge = Image.FromStrea m(ms);
sqlConn.Close() ;
}

--
Happy coding!
Morten Wennevik [C# MVP]