将点击事件添加到图片框 vb.net [英] add on click event to picturebox vb.net

问题描述

我有一个 flowLayoutPanel，我正在以编程方式向其中添加新的 panelLayouts.每个 panelLayout 中都有一个图片框.一切都很好，但是我需要检测何时单击该图片框.如何在图片中添加事件?我似乎只能找到 c# 示例....

I have a flowLayoutPanel which I am programatically adding new panelLayouts to. Each panelLayout has a pictureBox within it. It's all working nicely, but I need to detect when that picture box is clicked on. How do I add an event to the picture? I seem to only be able to find c# examples....

我添加图片的代码如下...

my code to add the image is as follows...

        ' add pic to the little panel container
        Dim pic As New PictureBox()
        pic.Size = New Size(cover_width, cover_height)
        pic.Location = New Point(10, 0)
        pic.Image = Image.FromFile("c:/test.jpg")
        panel.Controls.Add(pic)

        'add pic and other labels (hidden in this example) to the big panel flow
        albumFlow.Controls.Add(panel)

所以我假设我在创建图像时添加了一个 onclick 事件.如果可能的话，我还需要获取它的索引！感谢您的帮助！

So I assume somewhere when I'm creating the image I add an onclick event. I need to get the index for it also if that is possible! Thanks for any help!

推荐答案

使用AddHandler语句订阅Click事件:

Use the AddHandler statement to subscribe to the Click event:

    AddHandler pic.Click, AddressOf pic_Click

pic_Click() 方法的 sender 参数给你一个图片框的引用:

The sender argument of the pic_Click() method gives you a reference to the picture box back:

Private Sub pic_Click(ByVal sender As Object, ByVal e As EventArgs)
    Dim pic As PictureBox = DirectCast(sender, PictureBox)
    ' etc...
End Sub

如果您需要有关特定控件的其他信息，例如索引，则可以使用 Tag 属性.

If you need additional info about the specific control, like an index, then you can use the Tag property.

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