检查的图像的宽度和高度 | 检查的图像的宽度和高度

本文介绍了检查的图像的宽度和高度的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我能够不通过下面的代码检查文件大小来显示图片框的图片：

I am able to display the picture in the picture box without checking the file size by the following code:

private void button3_Click_1(object sender, EventArgs e)
{
    try
    {
        //Getting The Image From The System
        OpenFileDialog open = new OpenFileDialog();
        open.Filter =
          "Image Files(*.jpg; *.jpeg; *.gif; *.bmp)|*.jpg; *.jpeg; *.gif; *.bmp";

        if (open.ShowDialog() == DialogResult.OK)
        {
            Bitmap img = new Bitmap(open.FileName);

            pictureBox2.Image = img;
        }
    }
    catch (Exception)
    {
        throw new ApplicationException("Failed loading image");
    }
}

我要检查，例如图像大小是否在图片框中显示之前的 2MB或4MB 。我也想检查宽度和高度的形象。

I want to check the image size for example whether it is 2MB or 4MB before displaying in the picture box. i also want to check the width and height of the image.

推荐答案

借助 长度属性来获取文件的大小。

Use the FileInfo Length property to get the file size.

FileInfo file = new FileInfo(open.FileName);
var sizeInBytes = file.Length;

Bitmap img = new Bitmap(open.FileName);

var imageHeight = img.Height;
var imageWidth = img.Width;

pictureBox2.Image = img;

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