2023年6月21日发(作者：)

c#中⽂件与⼆进制流⽂件的转换c# SQL数据库image图⽚⽂件的保存于读取

SqlConnection con = new SqlConnection("Persist Security Info=False;Userid=sa;pwd=123;database=WDERPDATA_001;server=(local)"); (); SqlDataAdapter dat = new SqlDataAdapter("select*from TLFGL_LFRY", con); DataSet set = new DataSet(); (set); DataTable tb = [0]; DataRow rw = [0]; DataColumn cl = s[0]; //( ng()); byte[] MyData = new byte[0]; // MyData=[1]["AU_LFRY_ZJZ"]; Builder temp = new Builder(255);

Image _Image = ream(new MemoryStream((byte[])[0]["AU_LFRY_ZJZ"]) ); = _Image;

Bitmap bmmpp = new Bitmap(); MemoryStream MS = new MemoryStream(); //Bitmap bmp = new Bitmap(e); (MS, ); Byte[] ImageData = new Byte[]; on = 0; (ImageData, 0, 32()); string sql00 = "UPDATE TLFGL_LFRY SET WHERE AU_LFRY_ZJH='19850725'"; SqlCommand dbCmd = new SqlCommand(sql00, con); dType = ; SqlParameter parameter = new SqlParameter("@Photo", , ue); = ImageData; (parameter); eNonQuery();

将⽂件转换成⼆进制⽅法： ///

/// 将⽂件转换成⼆进制 /// /// ⽂件路径 /// public static byte[] ConvertToBinary(string Path) { FileStream stream = new FileInfo(Path).OpenRead(); byte[] buffer = new byte[]; (buffer, 0, 32()); return buffer; }

将⼆进制转换成⽂件⽅法：using ;

string filePath = "D://"; //⽂件路径byte[] br = ConvertToBinary(filePath);FileStream fstream = (filePath, );try{

(br, 0, ); //⼆进制转换成⽂件}catch(Exception ex){ //抛出异常信息} finally{ ();

}

附加：⼆进制与图⽚互转 Image aa = new Bitmap(@"E:/photo/"); Stream stream = new Stream(); Formatter formatter

= new Formatter(); ize(stream, aa); //将图像序列化成⼆进制流

on = 0; Image bb = (Image)alize(stream); //将⼆进制流序列成Image

2023年6月21日发(作者：)

c#中⽂件与⼆进制流⽂件的转换c# SQL数据库image图⽚⽂件的保存于读取

SqlConnection con = new SqlConnection("Persist Security Info=False;Userid=sa;pwd=123;database=WDERPDATA_001;server=(local)"); (); SqlDataAdapter dat = new SqlDataAdapter("select*from TLFGL_LFRY", con); DataSet set = new DataSet(); (set); DataTable tb = [0]; DataRow rw = [0]; DataColumn cl = s[0]; //( ng()); byte[] MyData = new byte[0]; // MyData=[1]["AU_LFRY_ZJZ"]; Builder temp = new Builder(255);

Image _Image = ream(new MemoryStream((byte[])[0]["AU_LFRY_ZJZ"]) ); = _Image;

Bitmap bmmpp = new Bitmap(); MemoryStream MS = new MemoryStream(); //Bitmap bmp = new Bitmap(e); (MS, ); Byte[] ImageData = new Byte[]; on = 0; (ImageData, 0, 32()); string sql00 = "UPDATE TLFGL_LFRY SET WHERE AU_LFRY_ZJH='19850725'"; SqlCommand dbCmd = new SqlCommand(sql00, con); dType = ; SqlParameter parameter = new SqlParameter("@Photo", , ue); = ImageData; (parameter); eNonQuery();

将⽂件转换成⼆进制⽅法： ///

/// 将⽂件转换成⼆进制 /// /// ⽂件路径 /// public static byte[] ConvertToBinary(string Path) { FileStream stream = new FileInfo(Path).OpenRead(); byte[] buffer = new byte[]; (buffer, 0, 32()); return buffer; }

将⼆进制转换成⽂件⽅法：using ;

string filePath = "D://"; //⽂件路径byte[] br = ConvertToBinary(filePath);FileStream fstream = (filePath, );try{

(br, 0, ); //⼆进制转换成⽂件}catch(Exception ex){ //抛出异常信息} finally{ ();

}

附加：⼆进制与图⽚互转 Image aa = new Bitmap(@"E:/photo/"); Stream stream = new Stream(); Formatter formatter

= new Formatter(); ize(stream, aa); //将图像序列化成⼆进制流

on = 0; Image bb = (Image)alize(stream); //将⼆进制流序列成Image