windows form class constructor issue

Question

0.00/5 (No votes)

See more:

Hi friends,

i have two windows form 1)form1 2)form2.I want to open form 2 in two ways.1st way is independently open throgh the form2 name with no argument pass class constructor(form2 frm2=new form2()).2 nd way is form1 has id value that will pass to form2 through one argument constructor.like( form2 frm2=new form2(id)).the issue is whenever the each constrctor is loaded, the controls in the form2 is intialized.the question is in memory management all the controls has been initialized twice due to this process.so that memory could be allcoated twice for a single controls.i want to avoid it by one time intializecomponent for both constrctors.Is there any way to solve this issue?

Posted 12-Aug-12 21:54pm

baskaran chellasamy

Add a Solution

2 solutions

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)

**AmitGajjar** · Answer 1 · 2012-08-12T22:05:00

Solution 1

Hi,

if you are creating new instance of the Form2 then memory will be allocated separately. if you want to create only single instance of the Form2 then you need to use singleton class.

Check Simple Singleton Forms[^] code project article.

Hope this helps you,

Thanks
-Amit Gajjar

Posted 12-Aug-12 22:05pm

AmitGajjar

Rock (Multithreaded) · Answer 2 · 2012-08-12T22:13:00

Try This

//Form 1//

C#

sing System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            Form2 f = new Form2(); f.Show();
        }
    }
}

//Form 2//

C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace WindowsFormsApplication2
{
    public partial class Form2 : Form1
    {
        public Form2()
        {
            InitializeComponent();
        }

        private void Form2_Load(object sender, EventArgs e)
        {
           this.Text="I am Form 2- You don't need to design me";
  
        }
    }
}