Read Image From Sql Server

Hello!

My real problem is that i want to read an image from an Sql Server DB, resize them and send them, all this through a Web Service. I decide to split my problem in four steps:

1 - read image from Database
2 - Resize that image
3 - Send her back to the DB
4 - Send the image throw a web service after he use a dataset to read the data from the DB.

i try to read the database with this function




Code Snippet
public System.Drawing.Image ReadImgFromDB(Int64 imageID)
{
System.Drawing.Image image = null;
using (SqlConnection conn = new SqlConnection())
{
string connString = WebConfigurationManager.ConnectionStrings
["StringCC"].ConnectionString;
conn.ConnectionString = connString;
SqlCommand myCommand = new SqlCommand(
"SELECT Pic FROM Images WHERE ID='"+ imageID +"'", conn);
conn.Open();

byte[] imageData = (byte[])myCommand.ExecuteScalar();
System.IO.MemoryStream memStream = new System.IO.MemoryStream(imageData);
image = System.Drawing.Image.FromStream(memStream);
}
return image;
}





i introduce a valid image ID and i get this message

--- " System.ArgumentException: Parameter is not valid.
at System.Drawing.Image.FromStream(Stream stream, Boolean useEmbeddedColorManagement, Boolean validateImageData)
at System.Drawing.Image.FromStream(Stream stream)
at Service.ReadImgFromDB(Int64 chaveI) in e:Web ProjectsWSserviceApp_CodeService.cs:line 48"-----


line 48: "image = System.Drawing.Image.FromStream(memStream);"


Thank you!