How to show loading picture from one form to another?

Question

1.00/5 (2 votes)

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I want to show loading picture from changing one form to another when the form loading or processing is long...

What I have tried:

public partial class Form : Form1
{
Private void btn1_Click(object sender, EventArgs e)
{
Form2 f2=new Form2();
this.Hide();
f2.show();
}
}

Posted 31-Mar-16 18:18pm

Member 12179895

Updated 31-Mar-16 20:27pm

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Comments

Sergey Alexandrovich Kryukov 1-Apr-16 2:35am

Sorry, what is that supposed to mean? If you want to show a picture, show it where you want to see it. What "show loading" might be?
—SA

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Pravin.Bhosale01 · Answer 1 · 2016-03-31T20:27:00

Hope this will help.

C#

class SplashForm
{
    //Delegate for cross thread call to close
    private delegate void CloseDelegate();

    //The type of form to be displayed as the splash screen.
    private static SplashForm splashForm;

    static public void ShowSplashScreen()
    {
        // Make sure it is only launched once.

        if (splashForm != null)
            return;
        Thread thread = new Thread(new ThreadStart(SplashForm.ShowForm));
        thread.IsBackground = true;
        thread.SetApartmentState(ApartmentState.STA);
        thread.Start();           
    }

    static private void ShowForm()
    {
        splashForm = new SplashForm();
        Application.Run(splashForm);
    }

    static public void CloseForm()
    {
        splashForm.Invoke(new CloseDelegate(SplashForm.CloseFormInternal));
    }

    static private void CloseFormInternal()
    {
        splashForm.Close();
    }
...
}

add this class and a loading form in your code.

and change your code to open new form like below.

C#

Private void btn1_Click(object sender, EventArgs e)
{
SplashForm.ShowSplashScreen();
Form2 f2=new Form2();
SplashForm.CloseForm();
this.Hide();
f2.show();
}