Image自动调整图片大小,picture auto resize。当你的图片超过一定的数值,你可以自动把他缩小,你的荧幕就看得到啦...
使用方式- Image carImage = new Bitmap(new System.IO.MemoryStream((byte[])row["carImage"]));
- if (carImage.Height > 500 || carImage.Width > 500)
- {
- carImage = resizeImage(carImage, new Size(300, 300));
- }
复制代码 添加以下的function- public static Image resizeImage(Image imgToResize, Size size)
- {
- int sourceWidth = imgToResize.Width;
- int sourceHeight = imgToResize.Height;
- float nPercent = 0;
- float nPercentW = 0;
- float nPercentH = 0;
- nPercentW = ((float)size.Width / (float)sourceWidth);
- nPercentH = ((float)size.Height / (float)sourceHeight);
- if (nPercentH < nPercentW)
- nPercent = nPercentH;
- else
- nPercent = nPercentW;
- int destWidth = (int)(sourceWidth * nPercent);
- int destHeight = (int)(sourceHeight * nPercent);
- Bitmap b = new Bitmap(destWidth, destHeight);
- Graphics g = Graphics.FromImage((Image)b);
- g.InterpolationMode = InterpolationMode.HighQualityBicubic;
- g.DrawImage(imgToResize, 0, 0, destWidth, destHeight);
- g.Dispose();
- return (Image)b;
- }
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