interaction Between Form1 and Form 2

Question

0.00/5 (No votes)

See more:

Hi Guy. Please can u help me to solve this Problem. I have Form1(With Buttom Login) and i have a Form2(With Buttom logout).
1. after that the User enter his Name,zhe correct Passwort and click on the Login Buttom, the Form2 st opened and Form1 get hide. Later when the User is loging out is Form2 Unenable and Form1 appear again and the neww User kann sign in and use Form2 again.

But my Problem is that i don't find out how to use the same Form2. everithing i try open me a new Instance of Form2.
Form1 Login

C#

private void btnLogin_Click(object sender, EventArgs e)
{
    try
    {
        UserApplication user = new UserApplication(userName);
        user.Show();

    } catch(Exception ex){
        MessageBox.Show(ex.Message);
    }
}

Form2 Logout

C#

private void btnLogout_Click(object sender, EventArgs e)
 {
     try
     {
         Login in = new Login();
         in.Visible = true;

     }
    catch(Exception ex)
    {
         MessageBox.Show(ex.Message);
     }
 }

i don't find a possibility to solve this Problem. i get always a new instance. do you have some idea?

Posted 4-Aug-13 1:16am

stefan from germany

Add a Solution

3 solutions

Solution 3

Hi friend,
You can use the Settings.settings file to save you data of Form2 present in properties folder.I think this will help you.
Good luck

Posted 4-Aug-13 16:01pm

Arvind Verma (C# Developer)

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)

ridoy · Accepted Answer · 2013-08-04T01:43:00

Solution 1

See..
http://www.daniweb.com/software-development/csharp/threads/340187/moving-between-forms[^]
http://stackoverflow.com/questions/7558651/logout-the-main-form-and-show-the-login-form[^]

Posted 4-Aug-13 1:43am

ridoy

OriginalGriff · Accepted Answer · 2013-08-04T01:45:00

Yes. Stop doing that.
Don't use Show - use ShowDialog:

C#

private void btnLogin_Click(object sender, EventArgs e)
    {
    try
        {
        UserApplication user = new UserApplication(userName);
        Hide();
        user.ShowDialog();
        Show();
        }
    catch (Exception ex)
        {
        MessageBox.Show(ex.Message);
        }
    }

And

C#

private void btnLogout_Click(object sender, EventArgs e)
    {
    Close();
    }

Will fix it for you.