asp.net dynamically button with event handler

I have here a small problem with a dynamically generated buttons and their event handler in asp.net. I generate a flexible table with additional Buttons for special users. The buttons will generate dynamically, which works fine. But I can’t get the event handler to work.

Here are some pieces from my code:
Build the button (In an own function).

…
Button ButtonChange = new Button();

ButtonChange.Text = "Change";
ButtonChange.ID = "change_" + i.ToString();
ButtonChange.Font.Size = FontUnit.Point(7);
ButtonChange.ControlStyle.CssClass = "button";
ButtonChange.Click += new EventHandler(test);
…

And

void test(object sender, EventArgs e)
{ 
   // Do some stuff       
}

My Page_Load is empty.

But the program won’t jump to test, if I click the button. What’s going wrong?

Edit!!!
The problem is that I don’t know at start how many rows I get from my sql query back. For every row I will add a delete and a change button.
I call in my program a method which builds the result as a table.
In this method, I check if the current user is an AdminUser and if he is, I will call buildAdminButtons function.
Here, I create the buttons in a new column, for every row. How could I get this in OnLoad?

private void buildAdminButtons(TableRow tempRow, int i)
{
    Button ButtonDelete = new Button();
    Button ButtonChange = new Button();

    TableCell change = new TableCell();
    TableCell delete = new TableCell();

    ButtonChange.Text = "Change";
    ButtonChange.ID = "change_" + i.ToString();
    ButtonChange.Font.Size = FontUnit.Point(7);
    ButtonChange.ControlStyle.CssClass = "button";


    ButtonDelete.Text = "Delete";
    ButtonDelete.ID = "delete_" + i.ToString();
    ButtonDelete.Font.Size = FontUnit.Point(7);
    ButtonDelete.ControlStyle.CssClass = "button";

    change.Controls.Add(ButtonChange);
    delete.Controls.Add(ButtonDelete);

    tempRow.Cells.Add(change);
    tempRow.Cells.Add(delete);
}

I add to every button a unique id, which I don’t know at the start. How could I handle this?

Answers:

Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

You must have to place that code in page_load or page_init event.

protected void Page_Load()
{
  Button ButtonChange = new Button();

  ButtonChange.Text = "Change";
  ButtonChange.ID = "change_" + i.ToString();
  ButtonChange.Font.Size = FontUnit.Point(7);
  ButtonChange.ControlStyle.CssClass = "button";
  ButtonChange.Click += new EventHandler(test);
}

Read MSDN article – How to: Add Controls to an ASP.NET Web Page Programmatically?

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0