How to add event handler for dynamically created controls at runtime?

Question

I am working on C# windows application. my application get controls(button,text box,rich text box and combo box etc)from custom control library and placed them into form dyn

Answer 1

var t = new TextBox();
t.MouseDoubleClick+=new System.Windows.Input.MouseButtonEventHandler(t_MouseDoubleClick);

private void t_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
     throw new NotImplementedException();
}

It's adding double click eventhandler to new TextBox

Answer 2

With anonymous method:

Button button1 = new Button();
button1.Click += delegate
                    {
                        // Do something 
                    };

With an anonymous method with explicit parameters:

Button button1 = new Button();
button1.Click += delegate (object sender, EventArgs e)
                    {
                        // Do something 
                    };

With lambda syntax for an anonymous method:

Button button1 = new Button();
button1.Click += (object sender, EventArgs e) =>
                    {
                        // Do something 
                    };

With method:

Button button1 = new Button();
button1.Click += button1_Click;

private void button1_Click(object sender, EventArgs e)
{
    // Do something
}

Further information you can find in the MSDN Documentation.

Answer 3

I believe you could do something like this:

if (userCanAdd)
    container.Controls.Add(GetAddButton());
if (userCanUpdate)
    container.Controls.Add(GetUpdateButton());
if (userCanDelete)
    container.Controls.Add(GetDeleteButton());

private Button GetAddButton() {
    var addButton = new Button();
    // init properties here

    addButton.Click += (s,e) => { /* add logic here */ };
    // addButton.Click += (s,e) => Add();
    // addButton.Click += OnAddButtonClick;

    return addButton;
}

private void OnAddButtonClick (object sender, EventArgs e) { 
    // add logic here
}

// The other methods are similar to the GetAddButton method.