?

將圖片以流的形式保存到數據庫(Image)以及從數據庫中取出顯示?
try?
????????????{?
????????????????string?imagepath?=?@"D:\backImage\black.jpg";?
????????????????FileStream?fs?=?new?FileStream(imagepath,?FileMode.Open);?
????????????????BinaryReader?br?=?new?BinaryReader(fs);?
????????????????byte[]?myimages?=?br.ReadBytes(Convert.ToInt32(fs.Length));?
????????????????//string?conn_Str?=?@"server=.;database=pubs;user=sa;pwd=sasa";?
????????????????string?conn_Str?=?@"Data?Source=DF15D10F40A945C\SQLEXPRESS;Initial?catalog?=pubs;user=sa;pwd=sasa";?
????????????????using?(SqlConnection?sqlcon?=?new?SqlConnection(conn_Str))?
????????????????{?
????????????????????sqlcon.Open();?
????????????????????string?insertsql?=?"insert?into?table1?values(1,@image)";?
????????????????????using?(SqlCommand?sqlcom?=?new?SqlCommand(insertsql,?sqlcon))?
????????????????????{?
????????????????????????SqlParameter?sqlparameter?=?new?SqlParameter("@image",?SqlDbType.Image);?
????????????????????????sqlparameter.Value?=?myimages;?
????????????????????????sqlcom.Parameters.Add(sqlparameter);?
????????????????????????sqlcom.ExecuteNonQuery();?
????????????????????}?
????????????????????string?selectsql?=?"select?*?from?table1";?
????????????????????using?(SqlCommand?sqlcom?=?new?SqlCommand(selectsql,?sqlcon))?
????????????????????{?
????????????????????????SqlDataReader?sqldr?=?sqlcom.ExecuteReader();?
????????????????????????sqldr.Read();?
????????????????????????byte[]?images?=?(byte[])sqldr["myimage"];?
????????????????????????Stream?stream?=?new?MemoryStream(images);?
????????????????????????pictureBox2.Image?=?System.Drawing.Image.FromStream(stream);?
????????????????????}?
????????????????}?
????????????}?
????????????catch?(Exception?ex)?
????????????{?
????????????????MessageBox.Show(ex.Message);?
????????????}?

?

轉載于:https://www.cnblogs.com/skyrickie/articles/1392030.html

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