I have an exit button on a winform that I want to use to close the program. I have added the button name to the FormClosed property found in the events section of the winforms properties. I thought that's all I had to do but when I click the button it does not close. I looked at the code and while a handler is created, there is no code inside of it. I don't know if that is correct or not. Here is the code that was created in the Form.cs file:
private void btnExitProgram_Click(object sender, EventArgs e)
{
}
What else do I have to do?
this.Close();
Closes the form programmatically.
Remove the method, I suspect you might also need to remove it from your Form.Designer.
Otherwise: Application.Exit();
Should work.
That's why the designer is bad for you. :)
The FormClosed Event is an Event that fires when the form closes. It is not used to actually close the form. You'll need to remove anything you've added there.
All you should have to do is add the following line to your button's event handler:
this.Close();
We can close every window using Application.Exit();
Using this method we can close hidden windows also.
private void btnExitProgram_Click(object sender, EventArgs e)
{
Application.Exit();
}
Put this little code in the event of the button:
this.Close();
Try this:
private void btnExitProgram_Click(object sender, EventArgs e) {
this.Close();
}
Used Following Code
System.Windows.Forms.Application.Exit( )
In Visual Studio 2015, added this to a menu for File -> Exit and in that handler put:
this.Close();
but the IDE said 'this' was not necessary. Used the IDE suggestion with just Close(); and it worked.
If you only want to Close the form than you can use this.Close();
else if you want the whole application to be closed use Application.Exit();
You can also do like this:
private void button2_Click(object sender, EventArgs e)
{
System.Windows.Forms.Application.ExitThread();
}
Related
im trying to trigger a folder browser dialog with a button in c#
ive tried
private void Button2_Click(object sender, EventArgs e)
{
DialogResult auswahl2 = folderBrowserDialog2.ShowDialog();
if (auswahl2 == DialogResult.OK)
{
TextBox5.Text = folderBrowserDialog2.SelectedPath;
}
}
but neither debug nor release will open one on button click.
What am i missing ?
Thanks in Advance
Go to your form, and double-click the button in question, see if it pointed to the above function, or a new event function is created.
If it was the second, copy everything above to the new function and run the program again, everything should be fine after that.
If you want to do it manually, go to YourForm.Designer.cs, and add this.Button2.Click += new System.EventHandler(this.Button2_Click); under InitializeComponent().
Or go to the code of your form, select InitializeComponent under the constructor, and press F12, and it will bring you to the right place.
Your code works perfectly but check if Button2_Click(object sender, EventArgs e) event is plugged.
Mehdi
i searched google lot to know how can i programmatically click on cross button X using c#. i got the below code which is used for different purpose.
private void Form1_FormClosing(object sender, FormClosingEventArgs e) {
if (string.Equals((sender as Button).Name, #"CloseButton"))
// Do something proper to CloseButton.
else
// Then assume that X has been clicked and act accordingly.
}
so anyone can tell me How to programmatically click on cross button for closing form. thanks
To check the close reason you can use the CloseReason enum
private void Form_FormClosing(object sender, FormClosingEventArgs e)
{
if (e.CloseReason == CloseReason.ApplicationExitCall)
// Do something...
}
If you want to programattically close a form you can use
this.Close();
This will launch the FormClosing event that is displayed above.
I hope this helps.
If you want to emulate close click investigate SendMessage to send WM_CLOSE to you window.
I created a UserControl with the buttons Save, Close and Cancel. I want to close the form without saving on the Cancel button, prompt a message to save on the Close button and Save without closing on the Save button. Normally, I would have used this.Close() on the Cancel button, but the UserControl doesn't have such an option. So I guess I have to set a property for that.
Scrolling down the "Questions that may already have your answer" section, I came across this question: How to close a ChildWindow from an UserControl button loaded inside it? I used the following C# code:
private void btnCancel_Click(object sender, EventArgs e)
{
ProjectInfo infoScreen = (ProjectInfo)this.Parent;
infoScreen.Close();
}
This does the job for one screen, but I wonder if I have to apply this code for all the screen I have? I think there should be a more efficient way. So my question is: Do I need to apply this code for every form I have, or is there another (more efficient) way?
you can use
((Form)this.TopLevelControl).Close();
you can use the FindForm method available for any control:
private void btnCancel_Click(object sender, EventArgs e)
{
Form tmp = this.FindForm();
tmp.Close();
tmp.Dispose();
}
Do not forget to Dispose the form to release resources.
Hope this helps.
You also can close one form in any part of the code using a remote thread:
MyNamespace.MyForm FormThread = (MyNamespace.MyForm)Application.OpenForms["MyForm"];
FormThread.Close();
I found the simple answer :) I all ready thought of something like that.
To close a WinForm in a ButtonClicked Event inside a UserControl use the following code:
private void btnCancel_Click(object sender, EventArgs e)
{
Form someForm = (Form)this.Parent;
someForm.Close();
}
Good day stackoverflow. My problem here is that the close form function is not implemented right after the closure of the form. But if I close the form and open it up again and close it again the Close_Form function executes. How can I do it in such a way that after compile and run the program I could use the close form method right away? Please help.tnx
private Form2 ins = new Form2();
private void userManageLink_Click(object sender, EventArgs e)
{
ins.ShowDialog();
ins.FormClosing += new System.Windows.Forms.FormClosingEventHandler(Close_Form);
}
private void Close_Form(object sender, EventArgs e)
{
MessageBox.Show("Hello World");
}
Move the assignment of the event handler to before the call to ShowDialog(). Once you call ShowDialog(), it doesn't return until the form has already closed. By the time, there's no point in installing the event handler because the form is already closed and the event won't be fired.
The problem is likely that you're adding the FormClosing handler after the ShowDialog call. The dialog is shown, you close it, then you add the handler. Try adding the handler before the ShowDialog call.
I'm using Visual c# express 2010, I have 3 tabs and on the first tab there is a button that exits the program. I'm trying to call that button click on the 2nd and 3rd tab with
btnExit.PerformClick();
but since it isn't visible nothing happens. How would I call the invisible button click?
any help would be appreciated
EDIT:
Thanks for the replies, the two answers work great but I found a way that I think is easier and better.
instead of systematically changing tabs or calling a whole different method, I did this
btnExit_Click(sender, e);
I can put that in any other button click and it works great, very simple to.
I think it's better to create a method that actually has the code to exit the program, and call that method from btnExit click event and also other buttons click event, than PerformClick of the exit button.
void ExitApplication()
{
// code to exit the application
}
protected void btnExit_Click(object sender, EventArgs e)
{
ExitApplication();
}
protected void ButtonInOtherTab_Click(object sender, EventArgs e)
{
ExitApplication();
}
This way it's easier to read and understand.
myTabs.SelectedTab = specificTab;
btnExit.PerformClick();