How handle event for dynamically generated tabpages in c#?

Question

I'm adding an event for the Tabpages that are dynamically created. However, when I interact with the UI, the event is not called. Help! :)

I already tried below but doesn't work:

Event handling for dynamically generated controls

C# TabControl TabPage passing events

    private void FileListView_DoubleClick(object sender, EventArgs e)
    {
        if (FileListView.SelectedIndices != null && FileListView.SelectedIndices.Count > 0)
        {
            FileListViewTask.Expand(settingsForm, FileListView, FileListView.SelectedIndices[0]);
            string filepathSelected=FileListViewTask.getFilePath(FileListView.SelectedIndices[0]);
            if (filepathSelected != "")
            {
                bool tabAlreadyExists = false;
                foreach (TabPage tabpage in SourceTabControl.TabPages)
                {
                    if (tabpage.GetNextControl(new Label(), true).Text == filepathSelected)
                    {
                        SourceTabControl.SelectTab(tabpage);
                        tabAlreadyExists = true;
                        break;
                    }

                }
                if (!tabAlreadyExists)
                {
                    TabPage tabpage = (new CodePageGenerator(filepathSelected)).createPage();
                    tabpage.Parent = SourceTabControl;
                    tabpage.MouseDoubleClick += new MouseEventHandler(tabpage_MouseDoubleClick);
                    tabpage.Click += new EventHandler(this.tabpage_Click);
                    SourceTabControl.SelectTab(tabpage); 
                }
            }
        }
    } 

    void tabpage_Click(object sender, EventArgs e)
    {
        TabPage tabpage = (TabPage)sender;
        SourceTabControl.TabPages.Remove(tabpage);
        MessageBox.Show("yow");
    }

    void tabpage_MouseDoubleClick(object sender, MouseEventArgs e)
    {
        TabPage tabpage = (TabPage)sender;
        SourceTabControl.TabPages.Remove(tabpage);
        MessageBox.Show("yow");
    }

UPDATE

the code above works when a click occurs inside the TabPage content. But doesn't work when tabs are clicked

Leandro Keen Zapa Leandro Keen Zapa · Accepted Answer · 2019-06-06T23:58:15

I already figured it out!

The key is to add an event to TabControl and not TabPage! The event on clicking the tab buttons are passed to the TabControl.

Initialize an eventhandler

    SourceTabControl.MouseDoubleClick += new MouseEventHandler(SourceTabControl_MouseDoubleClick);

then,

    private void SourceTabControl_MouseDoubleClick(object sender, MouseEventArgs e)
    {
        SourceTabControl.TabPages.Remove(SourceTabControl.SelectedTab);
    }

How handle event for dynamically generated tabpages in c#?

1 Answers