InstantForum 2017-1 FinalStrataFrame Forumhttp://forum.strataframe.net/StrataFrame ForumTue, 09 Jun 2026 04:38:48 GMT20http://forum.strataframe.net/FindPost12053.aspxHi, I am reading an image field from the database into a property of type[]. When the field is null, I get an <EM>Unable to cast object of type 'System.DBNull' to type 'System.Byte[]&nbsp; </EM>error. I have changed the StrataFrame generated code for the BO to fix it, but is there some setting that I need to make when generating the BO so this is automatically handled correctly in the generated BO? :DThu, 18 Oct 2007 18:06:22 GMTMarcoRhttp://forum.strataframe.net/FindPost12076.aspxHi Guys,</P><P>FYI we use "return alternate on null&nbsp;&gt; Nothing" for TimeStamp columns and that works fine to.</P><P>I say this because I'm pretty sure the we get a "System.DBNull' to type System.Byte[]" error if we don't get the Timestamp setting correct in the BO Mapper.</P><P>Cheers, PeterThu, 18 Oct 2007 18:06:22 GMTPeter Joneshttp://forum.strataframe.net/FindPost12071.aspxCool!Thu, 18 Oct 2007 15:10:49 GMTGreg McGuffeyhttp://forum.strataframe.net/FindPost12069.aspxThanks! I used new byte[] {} in the alternate and that worked.Thu, 18 Oct 2007 14:19:39 GMTMarcoRhttp://forum.strataframe.net/FindPost12065.aspxI'm not sure if one of the "return alternate on null" settings would work in this situation, but you could just put your custom code in the custom code area of the BO Mapper (the big text box at the bottom of the field customization form). That way every time your BO is rebuild within the mapper, this code gets used.Thu, 18 Oct 2007 12:22:30 GMTGreg McGuffey