Question

i created user control which looks like this:

and code behind looks like:

using System;
using System.Windows.Forms;

namespace Controlls
{
    public partial class Toolbar : UserControl
    {
        public Toolbar()
        {
            InitializeComponent();
        }

        private void pbNaprej_Click(object sender, EventArgs e)
        {

        }

        private void pbNazaj_Click(object sender, EventArgs e)
        {

        }

        private void pbNovo_Click(object sender, EventArgs e)
        {

        }

        private void bpbBrisi_Click(object sender, EventArgs e)
        {

        }

        private void pbPotrdi_Click(object sender, EventArgs e)
        {

        }

        private void txtOd_TextChanged(object sender, EventArgs e)
        {

        }
    }
}

now i move this UC to form but there is a problem. How to get this events from UC. I need to implement click events for buttons in form where i use this user control. What i can see is that i can use it like one component and i can not get separate buttons from it.

Answer 1

Add 2 event handlers for yor control, and subscribe to the toobox event at the place you use it:

using System; 
using System.Windows.Forms; 

namespace Controlls 
{ 
    public enum ToolboxButtonType { Potrdi, Brisi, Novo, Nazaj, Naprej } 
    public partial class Toolbar : UserControl 
    { 
        public Toolbar() 
        { 
            InitializeComponent(); 
        } 

        private void pbNaprej_Click(object sender, EventArgs e) 
        { 
            OnToolboxClick(ToolboxButtonType.Naprej);
        } 

        private void pbNazaj_Click(object sender, EventArgs e) 
        { 
            OnToolboxClick(ToolboxButtonType.Nazaj);
        } 

        private void pbNovo_Click(object sender, EventArgs e) 
        { 
            OnToolboxClick(ToolboxButtonType.Novo);
        } 

        private void bpbBrisi_Click(object sender, EventArgs e) 
        { 
            OnToolboxClick(ToolboxButtonType.Brisi);
        } 

        private void pbPotrdi_Click(object sender, EventArgs e) 
        { 
             OnToolboxClick(ToolboxButtonType.Potrdi);
        } 

        private void txtOd_TextChanged(object sender, EventArgs e) 
        { 
             OnTextChanged(txtOd.Text);
        } 
    }
    private OnToolboxClick(ToolboxButtonType button)
    {
        if (ToolboxClick != null)
        {
            ToolboxClick(this, new ToolboxClickEventArgs(button));
        }
    }
    private OnTextChanged(string text)
    {
        if (ToolboxTextChanged!= null)
        {
            ToolboxTextChanged(this, new ToolboxTextChangedEventArgs(text));
        }
    }
    public class ToolboxTextChangedEventArgs: EventArgs
    {
        public string Text { get; private set; }
        public ToolboxClickEventArgs(string text) { Text = text; }
    }
    public class ToolboxClickEventArgs : EventArgs
    {
        public ToolboxButtonType Button { get; private set; }
        public ToolboxClickEventArgs(ToolboxButtonType button) { Button = button; }
    }
    public event EventHandler<ToolboxClickEventArgs> ToolboxClick;
    public event EventHandler<ToolboxTextChangedEventArgs> ToolboxTextChanged;
} 

For example:

//Toolbar toolbar = new Toolbar();
toolbar.ToolboxTextChanged += (s, e) => { btn1.Text = e.Text; };
toolbar.ToolboxClick += (s, e) => 
{
    swith(e.Button)
    {
        case ToolboxButtonType.Brisi: //
            break;
        default:
            break;
    }
};