Unique references to MDI children

[BVO]

I need to keep track of my MDI child forms to activate
any one of them whenever I need to.

There are two possibilities as far as I can see:

- each forms index in the MDIChildren collection
- each forms Handle property.

The first one doesnt offer my a unique reference cause
the indexes change when forms are closed. I guess I
should use the Handle but how do I activate a form based
on its Handle?

Any other way?

BVO

[Dan Cimpoiesu]

Try this (assumes that you know the Handle if the form to activate and it is
stored in a variable called handle)

foreach ( Form frm in MdiChildren ) {
if ( frm.Handle==han dle ) {
frm.Activate();
break;
}
}

"BVO" <be************ **@shipnet.no> wrote in message
news:0b******** *************** *****@phx.gbl.. .

I need to keep track of my MDI child forms to activate
any one of them whenever I need to.

There are two possibilities as far as I can see:

- each forms index in the MDIChildren collection
- each forms Handle property.

The first one doesnt offer my a unique reference cause
the indexes change when forms are closed. I guess I
should use the Handle but how do I activate a form based
on its Handle?

Any other way?

BVO

[Nicholas Paldino [.NET/C# MVP]]

BVO,

You could always use a Hashtable to keep track of the instances. Each
MDI child should generate a unique hashcode, so you could place the MDI
children into a Hashtable. Then, instead of getting the handle, you could
just check to see if the key exists in the hash, and if it does, then
activate the form.

Hope this helps.
--
- Nicholas Paldino [.NET/C# MVP]
- ni************* *@exisconsultin g.com

"BVO" <be************ **@shipnet.no> wrote in message
news:0b******** *************** *****@phx.gbl.. .

I need to keep track of my MDI child forms to activate
any one of them whenever I need to.

There are two possibilities as far as I can see:

- each forms index in the MDIChildren collection
- each forms Handle property.

The first one doesnt offer my a unique reference cause
the indexes change when forms are closed. I guess I
should use the Handle but how do I activate a form based
on its Handle?

Any other way?

BVO

[martin]

assign different name/text or something else to each of the forms (or
declare public string/int and give each form different value)
"BVO" <be************ **@shipnet.no> wrote in message
news:0b******** *************** *****@phx.gbl.. .

I need to keep track of my MDI child forms to activate
any one of them whenever I need to.

There are two possibilities as far as I can see:

- each forms index in the MDIChildren collection
- each forms Handle property.

The first one doesnt offer my a unique reference cause
the indexes change when forms are closed. I guess I
should use the Handle but how do I activate a form based
on its Handle?

Any other way?

BVO