Question

I am using split containers in my application. One parent split container. There are three split containers in panel2 of parent split container.

Now when I click on one of the panel of split container embedded in panel2 of parent container, how to find that which containers which panel is clicked?

Thanks in advance!

Answer 1

You can try subscribing all of the panel’s to use the same click event. The sender would be the SplitterPanel class, which will have a Parent property (hidden from IDE but it’s there) that will be the SplitContainer:

public Form1() {
  InitializeComponent();

  splitContainer1.Panel1.MouseClick += Panel_MouseClick;
  splitContainer1.Panel2.MouseClick += Panel_MouseClick;
  splitContainer2.Panel1.MouseClick += Panel_MouseClick;
  splitContainer2.Panel2.MouseClick += Panel_MouseClick;
  splitContainer3.Panel1.MouseClick += Panel_MouseClick;
  splitContainer3.Panel2.MouseClick += Panel_MouseClick;
  splitContainer4.Panel1.MouseClick += Panel_MouseClick;
  splitContainer4.Panel2.MouseClick += Panel_MouseClick;
}

void Panel_MouseClick(object sender, MouseEventArgs e) {
  SplitterPanel sp = sender as SplitterPanel;
  SplitContainer sc = sp.Parent as SplitContainer;
  MessageBox.Show(sc.Name + " - " + sp.Tag.ToString());
}

For demonstration purposes, I entered a 1 or a 2 in the tag property of each panel since the sub-panels used in the SplitContainer do not use the Name proprety.