property of a dynamic button

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which button property is changed when a button is being clicked?
is that property same for the dynamic buttons also?
can any one give an example?

Posted 23-Mar-11 22:03pm

Member 7779792

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3 solutions

Solution 3

hi,

when u click a button the Look and feel u can change Of Button in eventHandler function

C#

private void button1_MouseHover(object sender, EventArgs e) {
    // when we hoover the button we get this
    button1.BackColor = Color.LightGreen;
}
private void button1_MouseLeave(object sender, EventArgs e) {
    // when we again leave the button we get back original color
    button1.BackColor = Color.Aqua;
}
private void Form1_Load(object sender, EventArgs e) {
    // Lets start with this color
    button1.BackColor = Color.Aqua;
}

[edit]Spurious in line code, big, code block removed from end of reply - OriginalGriff[/edit]

Posted 23-Mar-11 22:31pm

lekhya15

Updated 23-Mar-11 22:47pm

v2

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Member 7779792 24-Mar-11 5:08am

how can we apply this for a button in a button array???

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OriginalGriff · Accepted Answer · 2011-03-23T22:13:00

No button property is changed when a button is clicked: you get an event (the Button.Click event) so that you can do your thing when it happens.

Highlight your button, and look in the Properties pane of VS. Press the "lightning flash" button to show the available events, then double click on "Click" to add a handler.

The same thing happens with dynamic buttons, but you have to add the handler manually when you create them. VS can help: type your button creation code then type myButton.Click +=

Button myButton = new Button();
myButton.Click +=

Press [TAB] twice and it will be filled in for you.

"if the buttons are created by a dynamic button array,how can we identify a clicked button,among the other dynamic buttons in an array?"

Easy - it is handed to the Event handler as the "sender" parameter:

C#

private void myButton_Click(object sender, EventArgs e)
   {
   Button pressed = sender as Button;
   if (pressed != null)
      {
      // "pressed" is the button the user clicked
      }
   }

The only reason to check for null is that it is possible to call event handlers directly: not advisable, but possible. If this happens (or the event is hooked to a different control type) then it will not throw an exception.

Sergey Alexandrovich Kryukov · Accepted Answer · 2011-03-23T22:12:00

Solution 1

None. Period. No examples. Read on how events works.

—SA

Posted 23-Mar-11 22:12pm

Sergey Alexandrovich Kryukov

Comments

OriginalGriff 24-Mar-11 4:48am

Who univoted that? Compensated.

Brusque? Yes. Short? Yes. Correct? Yes. No reason to down vote that I can see, SA!

Sergey Alexandrovich Kryukov 24-Mar-11 12:26pm

Thank you, Griff. It happens all the time now, the more morons are pupulating CodeProjec these days...
--SA