asp.net：上传图片的时候将图片转为二进制流 数据库改字段类型为image
然后在
winfrom中读取二进制流后转为图片在pictureBox显示
问题二：
pictureBox点击事件中获取图片然后将图片转为二进制数据流
以上都是公用的一个字段
------解决方案--------------------
将图片存为文件吧，这样简单点，效率高，将你的二进制流写入文件就行。
------解决方案--------------------
- C# code
Stream ms; byte[] picbyte; OpenFileDialog ofdSelectPic = new OpenFileDialog(); if (ofdSelectPic.ShowDialog() == DialogResult.OK) { if ((ms = ofdSelectPic.OpenFile()) != null) { picbyte = new byte[ms.Length]; ms.Position = 0; ms.Read(picbyte, 0, Convert.ToInt32(ms.Length)); SqlConnection conn = new SqlConnection(); conn.ConnectionString = ""; sql = "Insert into Person(Photo) values(@Image)"; SqlCommand cmd = new SqlCommand(sql, conn); cmd.Parameters.Add("@Image", SqlDbType.VarBinary); cmd.Parameters["@Image"].Value = picbyte; conn.Open(); cmd.ExecuteNonQuery(); conn.Close(); ms.Close(); } } SqlConnection conn=new SqlConnection(); conn.ConnectionString=""; string strSql=""; SqlCommand cmd=new SqlCommand(strSql,conn); conn.Open(); SqlDataReader reader=cmd.ExecuteReader(); reader.Read(); MemoryStream ms=new MemoryStream((byte[])reader["Photo"]); Image image=Image.FromStream(ms,true); reader.Close(); conn.Close(); picturebox1.Image=image;