Re: ONE CLICK - C# Discussion Boards

13-Aug-03 15:24

create the buttons and modify the BindingCOntext.Position property

I'm not an expert yet, but I play one at work. Yeah and here too.

ONE CLICK

eggie513-Aug-03 13:34

13-Aug-03 13:34

private bool switchMC=true;
private void mButton(object sender, System.EventArgs e)
{
    Button btn = null;
    if(switchMC==true)
    {
        btn=(Button)sender;
        btn.Text="1";
        switchMC=false;
    }
    else if(switchMC==false)
    {
        btn=(Button)sender;
        btn.Text="0";
        switchMC=true;
    }
}

I'm not sure if I'm giving enough information here...

When I run this, it takes 2 clicks to get the else if statment to run...

How can I get it to 1?

/\ |_ E X E GG

Alvaro Mendez13-Aug-03 14:14

Alvaro Mendez

13-Aug-03 14:14

Hmmmm, just remove the "else"? Confused | :confused:

Regards,
Alvaro

If you want to get to the top, prepare to kiss a lot of bottom. -- despair.com

Furty13-Aug-03 14:21

Furty

13-Aug-03 14:21

Your code works fine here, on loading the button text is whatever is has been set to in the designer, on the first click the text changes to "1", then next click it changes to "0", then to "1" and so on and so forth..

I'm not sure what it is you want to achieve, but if you wanted the button text to be "1" before clicking it, you would need to invoke your button click event handler somewhere beforehand, for example:

mButton(this.button1, null);

eggie513-Aug-03 14:34

13-Aug-03 14:34

Sorry, I didn't explain enough...

There are 7 different buttons that use that method.

They all start out at 0.

Now, try the code out and see what it does... It's rather hard to explain...

/\ |_ E X E GG

eggie513-Aug-03 17:00

13-Aug-03 17:00

Well, the thing is...
try it with 7 diffent buttons which all use mButton for their on_click...

It get's weird results... just try it out real fast...

/\ |_ E X E GG

Rocky Moore13-Aug-03 14:31

Rocky Moore

13-Aug-03 14:31

Is your btn.Text initailly set to "1"? You have the initial value of switchMC as true, so the first time through it will go through the "True" condition and the next time it will go through the "False" condition.

Also, you do not need the second "IF" since you are using an ELSE, the ELSE will only be reached if switchMC is not true so you do not need the addition test. You could also restructure the code to either:

Button btn = (Button) sender;			
if(switchMC)			
{	
   btn.Text="1";				
   switchMC=false;			
}			
else 
{		
   btn.Text="0";				
   switchMC=true;			
}

Button btn = (Button) sender;
btn.Text = switchMC ? "1" : "0";
switchMC=!switchMC;

Rocky Moore <><

eggie513-Aug-03 16:38

13-Aug-03 16:38

I have 7 buttons that use the code for their on_click...

they are all initially set to 0...

/\ |_ E X E GG

Rocky Moore13-Aug-03 21:29

Rocky Moore

13-Aug-03 21:29

What is the result your are looking for? You have one state flag which toggles to true or false. Don't you want an array of state flags so you have one for each button?

If that is the result you want (the state of the clicked button to toggle, then you would want to check if the btn.Text = "0" and if so then change it to a "1" and visa-versa:

Button btn = (Button) sender;
btn.Text = btn.Text=="0" ? "1" : "0";

Rocky Moore <><

eggie513-Aug-03 21:35

13-Aug-03 21:35

YOU DID IT! YoUR A GENIUS!

/\ |_ E X E GG

Ista13-Aug-03 15:27

Hey whats THE CODE to cal the MAIN thread

13-Aug-03 15:27

really switch it to false.

or add while(true){... code ...}

and it will run forever. a good trick eh Mom

I'm not an expert yet, but I play one at work. Yeah and here too.

Ista13-Aug-03 13:33

Re: Hey whats THE CODE to cal the MAIN thread

13-Aug-03 13:33

Please I need the code to access the main thread or at least a pointer. get it.

I'm not an expert yet, but I play one at work. Yeah and here too.

Furty13-Aug-03 14:24

Furty

13-Aug-03 14:24

Check my reply to your TreeView question.

Re: Hey whats THE CODE to cal the MAIN thread

Ista13-Aug-03 15:23

13-Aug-03 15:23

thanks

I'm not an expert yet, but I play one at work. Yeah and here too.

Sort Array

Mazdak13-Aug-03 9:26

Mazdak

13-Aug-03 9:26

There is an Array.Sort() function that sort one dimensional array. How can I sort two dimensional based one of dimensions?

Mazy

No sig. available now.

Re: Sort Array

Ista13-Aug-03 13:27

13-Aug-03 13:27

yeah extend the class and write your own algorithm for it. Arrays in .NET suck, they should have grabbed some more java ideas

I'm not an expert yet, but I play one at work. Yeah and here too.

KeyDown for arrows

S O S13-Aug-03 6:23

S O S

13-Aug-03 6:23

How can I get the KeyDown event to fire for the arrow keys?

Nnamdi Onyeyiri13-Aug-03 7:17

Nnamdi Onyeyiri

13-Aug-03 7:17

you have to override the IsInputKey method, so that it returns true with the key arrows.

protected override bool IsInputKey(Keys key)
{
   if (key.KeyCode == Keys.Up) return true;
   else if (key.KeyCode == Keys.Down) return true;
   else if (key.KeyCode == Keys.Left) return true;
   else if (key.KeyCode == Keys.Right) return true;
   else return base.IsInputKey(key);
}

Another Post by NnamdiOnyeyiri l Website

S O S13-Aug-03 8:27

S O S

13-Aug-03 8:27

I tried that, but when I put a breakpoint there, I see the function never gets called... hmm?

Nnamdi Onyeyiri13-Aug-03 8:40

Nnamdi Onyeyiri

13-Aug-03 8:40

hmmm, it should do, it does when i create controls, are you creating a control from scratch? or adapting a current one?

Another Post by NnamdiOnyeyiri l Website

Ista13-Aug-03 13:19

13-Aug-03 13:19

To override the form or custom controls

<br />
protected override bool ProcessKeyPreview( ref System.Windows.Forms.Message mes )<br />
		{<br />
			Keys keyCode = (Keys)(int)mes.WParam & Keys.KeyCode; <br />
 <br />
			if((mes.Msg == WM_KEYDOWN || mes.Msg == WM_KEYUP) && keyCode == Keys.Down  ) <br />
			{<br />
				MessageBox.Show("Arrow handled");<br />
				return true;<br />
			}<br />
			else<br />
				return false;  <br />
<br />
		}<br />

for other controls like a textbox

<br />
Form1_Load()<br />
this.myControl.KeyDown += new KeyEventHandler(this.MyKeyDownEvent);<br />
<br />
<br />
...<br />
<br />
<br />
private void MyKeyDownEvent( object sender, KeyEventArgs e )<br />
{<br />
   if ( e.KeyCode == Keys.A )<br />
        MessageBox.SHow("Hey you typed an AS");<br />
}<br />

there you go dude the above works for override the message loop for custom controls and the below works for controls inside your container.

nick

I'm not an expert yet, but I play one at work. Yeah and here too.

Ista13-Aug-03 13:21