帮助检查的BackgroundImage

Question

我使用此代码来检查背景图片：

if (actionbox1.BackgroundImage == "WaterforMGC.strollinstu.png") 

但我得到的错误操作符“==”不能应用于类型“为System.Drawing.Image”和“字符串操作数'

那么如何检查BackgroundImage属性？

以防万一，这里是我的随机化代码：

 //actionbox1 
     var imageNames = new List<string> { "WaterforMGC.strollinstu.png", "WaterforMGC.blank.png", "WaterforMGC.swoopinstu.png", "WaterforMGC.waterbottle.png", "WaterforMGC.goop.png", "WaterforMGC.blank.png" }; 
     var rand = new Random(); 
     var index = rand.Next(0, imageNames.Count - 1); 
     var s = this.GetType().Assembly.GetManifestResourceStream(imageNames[index]); 
     actionbox1.BackgroundImage = Image.FromStream(s); 

Answer 1

一种解决方案可能是简单的第一负载，如下因素的例子，WaterforMGC.strollinstu.png 文件到System.Drawing.Image对象，之后将其分配给actionbox1.BackgroundImage。

在当你wnat找出确切的图像的那一刻，应该是足够的检查

例两个物体之间的平等（这实际上将调用GetHashCode()）：

//somewhere in the code 
    Image img1 = Image.FromFile(@".\.\....\\.\WaterforMGC.strollinstu1.png"); 
    Image img2 = Image.FromFile(@".\.\....\\.\WaterforMGC.strollinstu2.png"); 

    //assign to back image IMG1 
    actionbox1.BackgroundImage = img1; 



    //when comes moment to check whcih image is assigned (base on your app logic) 
    if(actionbox1.BackgroundImage == img1) 
    { 
    //do somethinmg here, based on your logic 
    } 
    else if(actionbox1.BackgroundImage == img2) 
    { 
    //do somethinmg other, based on your logic 
    } 

希望这有助于。

问候。