你的说一哈你图片是拿什么保存的啊。二进制吗?
string strSql = "Select img From images)";
Byte[] byteImage = new Byte[0];
byteImage = (Byte[])(DbHelperSQL.GetSingle(strSql));
MemoryStream stmBLOBData = new MemoryStream(byteImage);
picCarInfo.Image = Image.FromStream(stmBLOBData);