using (SqlDataReader drm = sqlComm.ExecuteReader())
{
drm.Read();//以下把数据库中读出的Image流在图片框中显示出来. MemoryStream ms = new MemoryStream((byte[])drm["Logo"]);
Image img = Image.FromStream(ms); this.pictureBox1.Image = img;
}
一直报Image img = Image.FromStream(ms);参数无效,这要怎么改???
{
drm.Read();//以下把数据库中读出的Image流在图片框中显示出来. MemoryStream ms = new MemoryStream((byte[])drm["Logo"]);
Image img = Image.FromStream(ms); this.pictureBox1.Image = img;
}
一直报Image img = Image.FromStream(ms);参数无效,这要怎么改???
SqlDataReader.GetSqlBytes 或者GetBytes 方法去取。
很有可能你直接转换出来的数据不正确。
如果流没错的的话吧
试试 吧Imageimg= Image.FromStream(ms); 后面加个上一句话bitmap bt =new bitmap(img);
或者直接 bitmap bt=new bitmap(Image.FromStream(ms));
this.pictureBox1.Image =bt;这样应该好用
OleDbCommand dnc_productprogram_code = new OleDbCommand("insert into dnc_productprogram_code (fid,fcode,ftime) values(:fid,:fcode,:ftime)");
dnc_productprogram_code.Parameters.Add(":fid", SqlDbType.VarChar);
dnc_productprogram_code.Parameters.Add(":fcode", SqlDbType.VarBinary);
dnc_productprogram_code.Parameters.Add(":ftime", SqlDbType.DateTime);
dnc_productprogram_code.Parameters[":fid"].Value = fid;
dnc_productprogram_code.Parameters[":fcode"].Value = progContent;
dnc_productprogram_code.Parameters[":ftime"].Value = DateTime.Now;
idal_dnc.ExcuteCommand(dnc_productprogram_code);