C# Two form f1 and f2

JAYESH AJ

f1 frist form show and exit two button

f2 " " exit and back

show btn click another page display grid and list

f2 form back btn click f2 form closed but **** exit btn click f1 and f2 closed how?

pls example

10 Replies

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Vulpes13y ago
Accepted answer
All that will do is to create a new instance of Form1 and then close that. It won't close the existing instance. If you want to do that but not close the entire application (assuming Form1 isn't the startup form) you can use:

Form1 form1 = Application.OpenForms["Form1"] as Form1;
if (form1 != null) form1.Close();
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Vulpes13y ago
Try:

private void btnExit_Click(object sender, EventArgs e)
{
this.Close();
frmCustomerAmountDidplay objCustomerAmountDidplay = Application.OpenForms["frmCustomerAmountDidplay"] as frmCustomerAmountDidplay;
if (objCustomerAmountDidplay != null) objCustomerAmountDidplay.Close();
}
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JAYESH AJ13y ago
private void btnExit_Click(object sender, EventArgs e)
{
this.Close();
frmCustomerAmountDidplay objCustomerAmountDidplay = (frmCustomerAmountDidplay)Application.OpenForms["frmCustomerAmountDidplay"];
objCustomerAmountDidplay.Close();///error Object reference not set to an instance of an object.
}
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Riyaz Akhtar13y ago
use this

private void button2_Click(object sender, EventArgs e)
{
this.Close();
frmCustomerAmountDidplay objCustomerAmountDidplay = (frmCustomerAmountDidplay)Application.OpenForms["frmCustomerAmountDidplay"];
objCustomerAmountDidplay.Close();
}
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JAYESH AJ13y ago
private void btnExit_Click(object sender, EventArgs e)
{
Close();// second form

frmCustomerAmountDidplay objCustomerAmountDidplay = new frmCustomerAmountDidplay();
objCustomerAmountDidplay.Close(); // frist form

}
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Riyaz Akhtar13y ago
if you want to close open documents then do like below code:

private void btnExit_Click(object sender, EventArgs e)
{
Form1 form1 = (Form1)Application.OpenForms["Form1"];
if (form1 != null) form1.Close();
Form2 form2 = (Form2)Application.OpenForms["Form2"];
if (form2 != null) form2.Close();.

}
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Vulpes13y ago
If you close the 'startup' form, then it will automatically close any other open forms.

Otherwise, you can call Application.Exit() to close all open forms in an orderly manner and the application itself.
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JAYESH AJ13y ago
private void btnExit_Click(object sender, EventArgs e)
        {
            Close();.

        }

" close " using in an second form

**********
how can close frist and second form btExit click

example
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Sanjeeb Lenka13y ago
plz provide clear details. so we can able to solve your problem
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Brajendra Shukla13y ago
I think no understand .. what you want to ask. Please provide more information clearly ...

Thanks
0