windowsform

Question

0.00/5 (No votes)

See more:

I have small doubt in my windows application. In my application I kept one form as menu form and put buttons to navigate to all other forms. On debugging when I click one button it will display corresponding form(eg: sales) and I minimized that form. Again when I click that particular button it shows a new form(new sales form) instead of that minimized one. I want the minimized form to be active when I click the button. How can I solve this problem? Can anybody help me?

Posted 15-Dec-10 18:52pm

sevenbell

Updated 15-Dec-10 18:55pm

JF2015

v2

Add a Solution

3 solutions

Solution 1

Hi,
When you click on that button check instance of that form is already open or not. if no then open new form but if yes as per your case then set focus to that same one.
eg take object of that form. Take for loop of mdichild forms and check it out that form with same name is open if yes then set focus to that.

Hope this help!!!! :)

Posted 15-Dec-10 19:02pm

brinda p

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

justinonday · Accepted Answer · 2010-12-15T20:17:00

Solution 3

C#

Form2 obj = new Form2();//declare as Global your navigation form.

       private void button1_Click(object sender, EventArgs e)
       {
          
           if ( obj.IsDisposed)
               obj = new Form2();           
            if (obj.WindowState == FormWindowState.Minimized)
               obj.WindowState = FormWindowState.Normal;
               else
               obj.Show();     
       }
//if this helped please vote.

<pre>

Posted 15-Dec-10 20:17pm

justinonday

Comments

sevenbell 16-Dec-10 2:40am

Thanks a lot its working as fine.

Dalek Dave 16-Dec-10 3:40am

Good Answer.

justinonday 16-Dec-10 5:12am

Thank you SevenBell and Dalek Dave

vivekse · Accepted Answer · 2010-12-15T19:02:00

Hi ,

Source of problem is every time you click on button there is new instance of a form is created which is different from other.

Now there is two way to solve this problem.

Declare then base or main form as a mdi form and check your code is

VB

If Me.MdiChildren.Length > 0 Then
                For Each frmChild As Form In Me.MdiChildren
                    'Do you task here 
                Next
                
        Else
            'Code to Open form 
End If

Another way to maintain a static Dictionary of object of form and form name as key. On button click check is object is already exists the activate it or create a new instance of form.