如果picturebox.image == Properties.Resources.ImageA [英] If picturebox.image == Properties.Resources.ImageA

问题描述

我制作了几个按钮(图片框)，然后单击它们会更改图像.

Im making few buttons(picturebox) that then you click them they change image.

我尝试了这段代码，但总是跳到其他地方.

I tryed this code but it always skips to else.

图像是从资源加载的.

Images are loaded from resources.

private void pictureBox7_Click(object sender, EventArgs e)
    {
       if (pictureBox7.Image == KaminuSkaiciuokle.Properties.Resources.IcopalA)
       {
           pictureBox7.Image = KaminuSkaiciuokle.Properties.Resources.IcopalB;
       }
       else
       {
            pictureBox7.Image = KaminuSkaiciuokle.Properties.Resources.IcopalA;
       }
    }

想通了.

需要比较picturebox.image，然后设置picturebox.tag并进行比较.

Insted comparing picturebox.image I set picturebox.tag and compare.

pictureBox7.Tag = "B";
if (pictureBox7.Tag.ToString() == "A")
   {
        pictureBox7.Image = KaminuSkaiciuokle.Properties.Resources.IcopalB;
        pictureBox7.Tag = "B";
   }
   else
   {
        pictureBox7.Image = KaminuSkaiciuokle.Properties.Resources.IcopalA;
        pictureBox7.Tag = "A";
   }

推荐答案

您应该保留对资源的本地引用，因为在调用KaminuSkaiciuokle.Properties.Resources...时，您将始终获得对象的新实例:

You should keep local reference to your resources, because when you invoke KaminuSkaiciuokle.Properties.Resources... you will always get new instance of object:

public partial class Form1 : Form
{
    public Form1()
    {
        InitializeComponent();
    }

    Bitmap _icopalABitmap = KaminuSkaiciuokle.Properties.Resources.IcopalA;
    Bitmap _icopalBBitmap = KaminuSkaiciuokle.Properties.Resources.IcopalB;

    private void pictureBox1_Click(object sender, EventArgs e)
    {            
        if (pictureBox7.Image == _icopalABitmap)
        {
            pictureBox7.Image = _icopalBBitmap;
        }
        else
        {
            pictureBox7.Image = _icopalABitmap;
        }
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        pictureBox7.Image = _icopalABitmap;
    }
}

这篇关于如果picturebox.image == Properties.Resources.ImageA的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！