如何从资源中获取特定图像？ [英] How do I get specific image from resources?

问题描述

所以我有一个名为Portugal，United States，Spain的按钮。



我有一张名为Portugal.png的美国国旗图片，美国.png，Spain.png在我的资源中。



我希望每当我点击我的表格按钮（例如葡萄牙按钮）时，Picturebox1.Image变成Portugal.png和每当我点击美国按钮时，PIcturebox1.image变成United States.png



伪代码：



Private Sub ButtonClick

Picturebox1.image = My.Resources（button1.text&.png）

End Sub



我尝试过：



My.Resources（Button1.Text&.png）。



*不起作用*

So I have a button named "Portugal", "United States", "Spain".

I have a flag image named Portugal.png, United States.png, Spain.png in my resources.

I want whenever I click the buttons my form (e.g Portugal button) the Picturebox1.Image turns into Portugal.png and whenever I click the United States button the PIcturebox1.image turns into United States.png

Pseudo code:

Private Sub ButtonClick
Picturebox1.image = My.Resources(button1.text & ".png")
End Sub

What I have tried:

My.Resources(Button1.Text & ".png").

*Doesn't work*

推荐答案

VB.NET的我的.Resources 提供对项目资源的强类型访问。它具有嵌入在资源中的每个文件的属性，但它不提供索引器来访问具有动态名称的文件。



但是，它 提供名为 ResourceManager 的属性，它允许您按名称访问资源：

使用ResourceManager类检索资源 [ ^ ]

VB.NET's "My.Resources" provides strongly-typed access to the resources in your project. It has a property for each file embedded in the resources, but it doesn't provide an indexer to access the files with a dynamic name.

However, it does provide a property called ResourceManager, which will let you access the resources by name:
Retrieving Resources with the ResourceManager Class[^]

Protected Sub Button_Click(ByVal sender As Object, ByVal e As EventArgs)
    Dim button As Button = DirectCast(sender, Button)
    Dim resource As Object = My.Resources.ResourceManager.GetObject(button.Text)
    Picturebox1.Image = DirectCast(resource, Image)
End Sub

注意：您只需要资源的名称，而不是文件扩展名。

NB: You only need the name of the resource, not the file extension.

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