Enabling / Disabling ToolStripMenuItem when clicked

Question

I've two forms (called form1 as mdi container and form2) with an opentoolstripmenuitem in form1, when opentoolstripmenuitem clicked form2 called and opentoolstripmenuitem become disable, but when i click closebox in the top right of form2 the opentoolstripmenu still disable, i want it to enable again when closebox clicked.

Here my code in form1 :

private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
    openToolStripMenuItem.Enabled = false;
    Form2 newMDIChild = new Form2();
    newMDIChild.MdiParent = this;
    newMDIChild.Show();            
}

any advice??

Answer 1

In the click handler, create a handler for the Closing or Closed event for Form2:

newMDIChild.FormClosed += new FormClosedEventHandler(newMDIChild_FormClosed);

and

void newMDIChild_FormClosed(object sender, FormClosedEventArgs e)
{
        openToolStripMenuItem.Enabled = true;
}

Answer 2

Simple Just use ShowDialog() on form and enable it after Showdialog

private void openToolStripMenuItem_Click(object sender, EventArgs e)
{
openToolStripMenuItem.Enabled = false;
Form2 newMDIChild = new Form2();
newMDIChild.MdiParent = this;
newMDIChild.ShowDialog(); 
openToolStripMenuItem.Enabled = true;           
}

The next code after showdialog will not be executed until the dialog is close

Hope it works

Thanks