Some articles about power management under pocket pc devices. Pocket PC Power Management Series 1: the Challenge to Developers Pocket PC Power Management Series 3: When is My Device Sleeping, and when is it Running? Pocket PC Power Management Series 9: Battery Life Matters
As you know, creating a Thread in the UI using System.Threading object (or any other thread object that is not UI related) does not allow that thread to access directly the UI objects (Eg: accessing a label “Text” property is not allowed). The well know work around is to “Invoke the action in the UI” […]
Datamatrix (2D) Code39/128 (1D)
NETCF’s HttpWebRequest automatically sets up a GPRS connection for web requests/web services when a wired/wi-fi connection is not available. Therefore, when you do a web request or consume a web service, developers do not need special coding to handle the GPRS connection case. This does not apply to lower level socket classes like TcpClient and […]
When using a “normal” MsSql database (whatever the version), the management tool allow us to create a “database generation script”. This option does not exists for SqlCE Databases (soooo sad). Here is a little third-party tools that woes the trick… http://exportsqlce.codeplex.com/ Among creating “scripts”, the add-in adds the following menu items to the table context […]
Save into database. //Image to byte[] Image myImage = Image.FromFile(“c:\\xyz.jpg”); System.IO.MemoryStream imgMemoryStream = new System.IO.MemoryStream(); myImage.Save(imgMemoryStream, System.Drawing.Imaging.ImageFormat.Jpeg); byte[] imgByteData = imgMemoryStream.GetBuffer(); //Store image bytes data into database SqlCeConnection scon = new SqlCeConnection(“Data Source=D:\\myDB.sdf”); SqlCeCommand cmd = new SqlCeCommand(“Update ImageTable Set Picture=@myPicture Where Username=’Martin'”, scon); cmd.Parameters.Add(“@myPicture”, SqlDbType.Image).Value = imgByteData; // Or cmd.Parameters.Add(“@myPicture”, SqlDbType.Binary).Value = imgByteData scon.Open(); […]
Useful tool for converting Visual Basic To C# or C# to Visual Basic : http://www.developerfusion.com/tools/convert/vb-to-csharp/