C＃我可以在标签B上的标签A上显示一个图片框吗？ （WinForm的）

Question

I have a C# winform app that has a tab control, I have a picturebox on tab A and would like the very same picturebox to appear on tab B. Can this be done?

Thank you Alison

Answer 1

Simply add the picture box to the second tab..

tabControl1.TabPages["tabB"].Controls.Add(pictureBox1);

This will remove the picture box from tab A and put it, as is, inside tab B.

Edit: you can have this code in the SelectedIndexChanged of the tab control to have the picture box jump between the tabs:

private void tabControl1_SelectedIndexChanged(object sender, EventArgs e)
{
    tabControl1.TabPages[tabControl1.SelectedIndex].Controls.Add(pictureBox1);
}

Answer 2

I'm affraid you can't

I though I could do it once by overriding the designer.cs file to add the control to both tabs and only got an error.

Answer 3

You can either make two pictureboxes, and keep them synchronized, or...

You can get the event to the tab control, OnTabChanged or something like that. If the tab is Tab A or Tab B , just move the picture box to that tab. I'm not exactly sure how you would do that, but I assume you would just remove it from whereever it is currently, and put it in the right place.