C# - Capture event on multiple dynamically created user controls

Question

I have a User Control which contains 4 labels. I populate a panel dynamically with multiple copies of this user control (one for each entry in a database). I want to capture a click event on any one of the user controls and grab the id associated with it.

The is the code contained within my user control:

public partial class TeamVsTeam: UserControl
{
    public TeamVsTeam()
    {
        InitializeComponent();
    }

    public int eventID { get; set; }
    public int idHomeTeam { get; set; }
    public int idAwayTeam { get; set; }
}

Within my application, I populate a panel with multiple controls like this:

TeamVsTeam.TeamVsTeam[] teamLabel = new TeamVsTeam.TeamVsTeam[n];

for (int i = 0; i < m_fixtures.lstTeams.Count; i++)
{
    teamLabel[i] = new TeamVsTeam.TeamVsTeam();

    teamLabel[i].eventID = m_fixtures.lstTeams[i].idEvent;

    teamLabel[i].lblHome.Text = m_fixtures.lstTeams[i].homeTeam.ToString();
    teamLabel[i].lblAway.Text = m_fixtures.lstTeams[i].awayTeam.ToString();

    teamLabel[i].Clicked += new EventHandler(Fixture_Click);

   //Location
    teamLabel[i].Top = 80 * i;
    teamLabel[i].Parent = panel1;
}

Is anyone able to suggest some code which I can use to capture the click event (anywhere on the user control) and obtain the eventID, homeTeam and awayTeam from the control which was clicked?

    public void Fixture_Click(object sender, EventArgs e)
    {
        var ctrl = ((TeamVsTeam.TeamVsTeam)sender);
        int ID = ctrl.eventID;
        MessageBox.Show(ID.ToString());
    }

EDIT I've updated the above code to show what I'm now working with, however, it's not completely solved things for me.

Here's an example of a fully populated user control (3 labels and 2 picture boxes)

https://www.dropbox.com/s/0tidlarzfoy6j2u/2015-09-30%2015_48_35-Super-6.jpg?dl=0

If I click on any of the light grey background, the click event is triggered and I can grab the fixture eventID. But the event is not triggered if I click on any of the labels or picture boxes. I still need to capture the fixture eventID, regardless of what part of the control is clicked. Any ideas?

ASh · Accepted Answer · 2015-09-30 12:38:42Z

1

you should be able to get data from sender after type cast

public void Fixture_Click(object sender, EventArgs e)
{
     var ctrl = ((TeamVsTeam.TeamVsTeam)sender);
     int ID = ctrl.eventID;
}

answered Sep 30, 2015 at 12:38

ASh

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6 Comments

Nick Roberts Over a year ago

Yes! That's what I was after. Although the Fixture_Click event isn't actually being triggered when I click on a control. Have I missed something else out?

ASh Over a year ago

@NickRoberts, is Fixture_Click in TeamVsTeam triggered?

Nick Roberts Over a year ago

Ah, I just removed the public void Fixture_Click(object sender, EventArgs e) section from within the user control itself and has done the trick. Again, thanks for your help

Nick Roberts Over a year ago

Sorry, this has created one more question. I've updated the original question with my new code...

ASh Over a year ago

@NickRoberts, possible fix: change TeamVsTeam .ctor a bit to raise Click event after click on child controls: InitializeComponent(); label1.Click += (s, e) => OnClick(e); pictureBox1.Click += (s, e) => OnClick(e); /*etc*/; or InitializeComponent(); foreach (Control c in Controls) c.Click += (s, e) => OnClick(e);

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