Adding Events in buttons during creation in collectionBase

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SQL

public Button this[int index]
        {
            get
            {
                return (Button)List[index];
            }
        }

i cannot figure out how to add events to a button during creation when this method is invoked.

please help thank you.:)

Posted 10-May-12 22:07pm

Member 8952959

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OriginalGriff 11-May-12 4:11am

Sorry?
That code has nothing to do with creation - it is just an indexer.
Use the "Improve question" widget to edit your question and provide better information.

2 solutions

Solution 2

Take a look here:
How to: Add an Event Hadler Using Code[^]
Event Handling in CSharp[^]

Posted 12-May-12 5:04am

Maciej Los

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Shahin Khorshidnia 14-May-12 0:14am

Iosmac I didn't vote but OP wants to add event handler during creation the button. The links don't contain the answer; although they are good and useful links. I think my solution is clear enough to understand.

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Shahin Khorshidnia · Accepted Answer · 2012-05-12T02:35:00

Solution 1

Hello

Add it in the Constructor. Create a new class that inherits from Button

C#

public class MyButton : System.Windows.Forms.Button
{
    public MyButton()
    {
       this.Click += new EventHandler(MyButton_Click);
    }
    void MyButton_Click(object sender, EventArgs e)
    {
       MessageBox.Show("Hello");//it's a sample
    }
}

Of course I like it:

C#

public class MyButton : System.Windows.Forms.Button
{
    public MyButton()
    {
        this.Click += new EventHandler(
            (object sender, EventArgs e) =>
            {
                MessageBox.Show("Hello");//It's a sample...
            });
    }
}

Posted 12-May-12 2:35am

Shahin Khorshidnia

Updated 13-May-12 18:22pm

v3

Comments

Member 8952959 13-May-12 23:46pm

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Scratch
{
public class MyButton: System.Windows.Forms.Button
{
public MyButton()
{
this.OnClick += new System.EventHandler(OnClick);
}

public void OnClick(object sender, EventArgs e)
{
}
}
}

I tried to add a event in the button class but it says: "Cannot assign to onClick because it is a method group" how can i resolve this. ty

Shahin Khorshidnia 14-May-12 0:10am

Use Click instead of OnClick. Look at the updated solution. I hope it will help

Member 8952959 14-May-12 1:39am

thank you so much! I am really a noob

Shahin Khorshidnia 14-May-12 3:07am

You're welcome.
By the way, you could accept the answer if it has helped. (Clicking on Green button)

Member 8952959 14-May-12 3:13am

I am trying to create a collection property which could create different types of class. Do you have any idea how? I can only create one type in the collection, is there a way to create other kinds of type in the same collection?

Shahin Khorshidnia 14-May-12 5:24am

You can create a collection of object for example: List<object> list = new List<object>; ... Of course all objects will be boxed and you must unbox them when you want to use them.