Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Dynamic Buttons in c#

Posted on 2009-05-05
5
Medium Priority
?
305 Views
Last Modified: 2012-05-06
Hello,

i need to change the background color of all my button.
Let say they are named button1, button2, etc.

I want to change the color in s for loop.
I attach a saple code to better explain.

Thank you very much
for (int n = 1; n < 60); n++)
            {
                
                button+n.BackColor = Color.Yellow;
                //obviussly is not working like that :)
            }

Open in new window

0
Comment
Question by:borntofly
5 Comments
 
LVL 12

Accepted Solution

by:
wht1986 earned 1000 total points
ID: 24308870
to find a control by name you can

in asp.net you can use
Page.FindControl("Button" + i.ToString())

on a windows form
Controls["Button" + i.ToString()]
0
 

Author Closing Comment

by:borntofly
ID: 31578207
Thank you very much
0
 
LVL 9

Expert Comment

by:tculler
ID: 24309199
The above will only work if you set the Name property to the control. What I recommend is using a List of buttons instead. Each time you add a button to the form, add it to the Button List as well. For example:
System.Collections.Generic.List<System.Windows.Forms.Button> buttons
   = new System.Collections.Generic.List<System.Windows.Forms.Button>();
 
void AddButton(System.Windows.Forms.Button myButton)
{
     this.buttons.Add(myButton);
     this.Controls.Add(myButton);
}
 
void ChangeButtonsBackColors(System.Drawing.Color myColor)
{
     foreach(System.Windows.Forms.Button btn in this.buttons)
     {
          btn.BackColor = myColor;
     }
}

Open in new window

0
 
LVL 30

Expert Comment

by:anarki_jimbel
ID: 24309229
If you work with winforms.

The catchup here is that e.g. form.Controls[name] will return only controls that are on the form itself. If these buttons (or whatever) are placed on a panel or tabcontrol (or any other container) - they are not in this collection. You need some recursive function to get all buttons on a form if the form has nested container controls with buttons.

Another approach - create an array that references all the buttons, and iterate through the array:

Buitton[] buttons = {Button1, Button2,...}

foreach(Button b in buttons)
            {    
                b.BackColor = Color.Yellow;
            }
0
 
LVL 2

Expert Comment

by:SimonFerris
ID: 24309260
To get each button on a form

foreach (var control in Controls)
            {
                if (typeof(Button) == control.GetType())
                {
                    ((Button)control).BackColor = Color.Yellow;
                }
            }
0

Featured Post

New feature and membership benefit!

New feature! Upgrade and increase expert visibility of your issues with Priority Questions.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Article by: Najam
Having new technologies does not mean they will completely replace old components.  Recently I had to create WCF that will be called by VB6 component.  Here I will describe what steps one should follow while doing so, please feel free to post any qu…
The article shows the basic steps of integrating an HTML theme template into an ASP.NET MVC project
this video summaries big data hadoop online training demo (http://onlineitguru.com/big-data-hadoop-online-training-placement.html) , and covers basics in big data hadoop .
Whether it be Exchange Server Crash Issues, Dirty Shutdown Errors or Failed to mount error, Stellar Phoenix Mailbox Exchange Recovery has always got your back. With the help of its easy to understand user interface and 3 simple steps recovery proced…

876 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question