Devexpress.chartcontro controls to save pictures and print pictures

        Private voidPictureBox1_Click (Objectsender, EventArgs e) {            ////Instantiate a print objectPrintDocument print =NewPrintDocument (); //Print EventPrint. PrintPage + =NewPrintpageeventhandler (print_printpage); //Start printingPrintDialog PD =NewPrintDialog (); if(PD. ShowDialog () = =DialogResult.OK) {//Print. PrinterSettings.DefaultPageSettings.Landscape = true;Print.            Print (); }            //Delete the pictures saved locally after printingPrint. EndPrint + =NewPrinteventhandler (Print_endprint); }        /// <summary>        ///Labhemodialysis generated graphs are saved locally, and get/// </summary>        /// <returns></returns>        PrivateImage get_image () {Bitmap bmp; if(Str_itemname.contains ("/"))            {                stringStr_itemnamerelapce = Str_itemname.replace ("/",""); Labhemodialysis.exporttoimage (@"C +"+ Str_itemnamerelapce +". Jpeg", System.Drawing.Imaging.ImageFormat.Jpeg); BMP=NewBitmap (@"C +"+ Str_itemnamerelapce +". Jpeg"); }            Else {                //Save to C driveLabhemodialysis.exporttoimage (@"C +"+ Str_itemname +". Jpeg", System.Drawing.Imaging.ImageFormat.Jpeg); //get pictures from C driveBMP =NewBitmap (@"C +"+ Str_itemname +". Jpeg"); }           returnbmp; }        //Delete a locally saved picture        Private voidDelete_image () {System.IO.FileInfo file=NewSystem.IO.FileInfo (@"C +"+ Str_itemname +". Jpeg"); if(file. Exists) {file.            Delete (); }          }        Private voidPrint_endprint (Objectsender, PrintEventArgs e)        {delete_image (); }       Private voidPrint_printpage (Objectsender, PrintPageEventArgs e) {Image img=Get_image (); Image Rotataimage= Rotate ((Bitmap) img, -); E.graphics.drawimage (Rotataimage,0,0); }       /// <summary>       ///rotate the image in a counterclockwise direction/// </summary>       /// <param name= "B" >Bitmap Stream</param>       /// <param name= "angle" >angle of rotation [0,360] (front desk)</param>       /// <returns></returns>       PrivateBitmap Rotate (Bitmap B,intangle) {Angle= Angle% the; //radians Conversion           DoubleRadian = angle * Math.PI/180.0; Doublecos =Math.Cos (Radian); DoubleSin =Math.sin (Radian); //the width and height of the original           intW =B.width; inth =B.height; intW = (int) (Math.max (Math.Abs (w * cos-h * sin), math.abs (w * cos + h *sin)); intH = (int) (Math.max (Math.Abs (w * sin-h * cos), math.abs (w * sin + H *cos)); //Target BitmapBitmap Dsimage =NewBitmap (W, H); System.Drawing.Graphics g=System.Drawing.Graphics.FromImage (dsimage); G.interpolationmode=System.Drawing.Drawing2D.InterpolationMode.Bilinear; G.smoothingmode=System.Drawing.Drawing2D.SmoothingMode.HighQuality; //Calculate offsetPoint Offset =NewPoint (W-W)/2, (H-H)/2); //to construct an image display area: Align the center of the image with the center of the windowRectangle rect =NewRectangle (Offset.x, Offset.y, W, h); Point Center=NewPoint (rect. X + rect. Width/2, Rect. Y + rect. Height/2); G.translatetransform (center. X, center.           Y); G.rotatetransform ( the-angle); //restores the panning of the image in both horizontal and vertical directionsG.translatetransform (-center. X,-Center.           Y);           G.drawimage (b, rect); //all transformations to the drawingG.resettransform ();           G.save ();           G.dispose (); //dsimage.save ("Yuancd.jpg", System.Drawing.Imaging.ImageFormat.Jpeg);           returnDsimage; }     

        Private stringPrintname;//the name of the print        Private voidBoxsava_click (Objectsender, EventArgs e) {SaveFileDialog SF=NewSaveFileDialog (); sf. Filter="Image Files (*.jpeg,*.gif) |*.jpeg;*.gif"; sf. Title="Trend Map Export"; sf. FileName= str_itemname+"("+datetime.now+")"+"Trend Chart"; Printname=SF.            FileName; if(SF. ShowDialog () = =DialogResult.OK) {labhemodialysis.exporttoimage (sf.            FileName, System.Drawing.Imaging.ImageFormat.Jpeg); }        }

Devexpress.chartcontro controls to save pictures and print pictures