473,575 Members | 3,507 Online
Bytes | Software Development & Data Engineering Community
+ Post

Home Posts Topics Members FAQ

tkinter destroy()

hi people.

when i create a widget, such as a toplevel window, and then i destroy
it, how can i test that it has been destroyed? the problem is that even
after it has been destroyed, the instance still exists and has a tkinter
name, so testing for None is not feasible:
import Tkinter
fin = None
fin1 = Tkinter.Topleve l()
fin1.destroy()
print fin1

..1075951116

any help?

bye

macs
Jul 18 '05 #1
6 17973
On Tue, 29 Mar 2005 10:37:10 GMT, max(01)* <ma**@fisso.cas a> wrote:
hi people.

when i create a widget, such as a toplevel window, and then i destroy
it, how can i test that it has been destroyed? the problem is that even
after it has been destroyed, the instance still exists and has a tkinter
name, so testing for None is not feasible:
>>> import Tkinter
>>> fin = None
>>> fin1 = Tkinter.Topleve l()
>>> fin1.destroy()
>>> print fin1 .1075951116


The winfo_exists method is what you want:
print fin1.winfo_exis ts()

0

However, I'm curious about *why* you want to do that: since *you* made the call to destroy, what would you want to do anything with a widget you've already destroyed?

HTH
--
python -c 'print "".join([chr(154 - ord(c)) for c in "U(17zX(%,5.z^5 (17l8(%,5.Z*(93-965$l7+-"])'
Jul 18 '05 #2
Eric Brunel wrote:
On Tue, 29 Mar 2005 10:37:10 GMT, max(01)* <ma**@fisso.cas a> wrote:
hi people.

when i create a widget, such as a toplevel window, and then i destroy
it, how can i test that it has been destroyed? the problem is that even
after it has been destroyed, the instance still exists and has a tkinter
name, so testing for None is not feasible:
>>> import Tkinter
>>> fin = None
>>> fin1 = Tkinter.Topleve l()
>>> fin1.destroy()
>>> print fin1

.1075951116

The winfo_exists method is what you want:
print fin1.winfo_exis ts()


0

However, I'm curious about *why* you want to do that: since *you* made
the call to destroy, what would you want to do anything with a widget
you've already destroyed?


my main window has a button that opens another toplevel window. this
button is bound to a method that creates the window and does some other
processing *only if* the windows does not exist yet (otherwise, the user
could click more on the button and multiple copies of the window would
pop up, which is not what i want... in fact what i do is to assign None
to a variable called self.dialogo in my main application code, then i do
self.dialogo = Toplevel() inside the method...)

in this precise moment, though, it comes to my mind that i could achieve
the purpose simply activating/deactivating the button according to a flag...

anyway, i attach the code, so you can see better what i mean...

anyone who has to say anything about is welcome of course...

it is a tentative adapration of a program found in the tcl/tk package demo

---cut here---

from Tkinter import *

class MiaApp:
def __init__(self, genitore):

self.mioGenitor e = genitore
self.fonte = ("Helvetica" , 12)
self.fonteVar = ("Helvetica" , 14)

self.quadro_gra nde = Frame(genitore)
self.quadro_gra nde.pack(expand = YES, fill = BOTH)

self.msg = Label(self.quad ro_grande)
self.msg.config ure(
font = self.fonte,
wraplength = "10c",
justify = LEFT,
text = u"Sono qui sotto presentati tre pulsanti a spunta. \
Premendo un pulsante, se ne varia lo stato di selezione e si \
imposta una variabile a un valore che indica lo stato del \
pulsante stesso. Premendo il pulsante \u00ABMostra \
Variabili\u00BB si possono vedere i valori correnti delle \
variabili."
)
self.msg.pack(s ide = TOP)

self.pulsanti = Frame(self.quad ro_grande)
self.pulsanti.p ack(side = BOTTOM, fill = X, padx = "2m")

self.pulsanti_s punta = Frame(self.quad ro_grande)
self.pulsanti_s punta.pack(side = TOP, fill = X, padx = "2m")

self.annulla = Button(self.pul santi)
self.annulla.co nfigure(
text = "Annulla",
command = self.mioGenitor e.destroy
)
self.annulla.pa ck(side = LEFT, expand = YES)
self.var = Button(self.pul santi)
self.var.config ure(
text = "Mostra Variabili",
command = self.pulsanteMo straVariabiliPr emuto
)
self.var.pack(s ide = LEFT, expand = YES)

self.tergicrist alli = IntVar()
self.b1 = Checkbutton(sel f.pulsanti_spun ta)
self.b1.configu re(
text = "Tergicrist alli a posto",
variable = self.tergicrist alli,
relief = FLAT
)
self.b1.pack(
side = TOP,
pady = 2,
anchor = W
)

self.freni = IntVar()
self.b2 = Checkbutton(sel f.pulsanti_spun ta)
self.b2.configu re(
text = "Freni a posto",
variable = self.freni,
relief = FLAT
)
self.b2.pack(
side = TOP,
pady = 2,
anchor = W
)

self.autista = IntVar()
self.b3 = Checkbutton(sel f.pulsanti_spun ta)
self.b3.configu re(
text = "Autista sobrio",
variable = self.autista,
relief = FLAT
)
self.b3.pack(
side = TOP,
pady = 2,
anchor = W
)

self.dialogo = None

def mostraVariabili (self, *argomenti):
self.dialogo = Toplevel()
self.dialogo.wm _title("Valori delle variabili")

self.dialogo.qu adro_grande = Frame(self.dial ogo)
self.dialogo.qu adro_grande.pac k(expand = YES, fill = BOTH)

self.dialogo.ti tolo = Label(self.dial ogo.quadro_gran de)
self.dialogo.ti tolo.configure(
text = "Valori delle variabili:",
width = 20,
font = self.fonteVar
)
self.dialogo.ti tolo.pack(side = TOP, fill = X)

lung = 1
for i in argomenti:
if len(i) > lung:
lung = len(i)

self.dialogo.dq = {}
self.dialogo.dn = {}
self.dialogo.dv = {}
for i in argomenti:
self.dialogo.dq[i] = Frame(self.dial ogo.quadro_gran de)
self.dialogo.dq[i].pack(
side = TOP,
anchor = W,
fill = X
)

self.dialogo.dn[i] = Label(self.dial ogo.dq[i])
self.dialogo.dn[i].configure(
text = i + ": ",
width = lung + 2,
anchor = W
)
self.dialogo.dn[i].pack(
side = LEFT
)

self.dialogo.dv[i] = Label(self.dial ogo.dq[i])
self.dialogo.dv[i].configure(
textvariable = self.freni, ### FIXME
anchor = W
)
self.dialogo.dv[i].pack(
side = LEFT,
expand = YES,
fill = X
)

self.dialogo.va Bene = Button(self.dia logo.quadro_gra nde)
self.dialogo.va Bene.configure(
text = "Va Bene",
command = self.pulsanteVa BenePremuto,
default = ACTIVE
)
self.dialogo.va Bene.bind(
"<Return>",
self.pulsanteVa BenePremuto_a
)
self.dialogo.va Bene.focus_forc e()
self.dialogo.va Bene.pack(
side = BOTTOM,
pady = 2
)

def pulsanteVaBeneP remuto(self):
self.dialogo.de stroy()
self.dialogo = None

def pulsanteVaBeneP remuto_a(self, evento):
self.pulsanteVa BenePremuto()

def pulsanteMostraV ariabiliPremuto (self):
if not self.dialogo:
self.mostraVari abili("self.ter gicristalli",
"self.freni ",
"self.autis ta") ### FIXME
else:
self.dialogo.li ft(self.mioGeni tore)

radice = Tk()
radice.wm_title ("Dimostrazi one Pulsanti a Spunta")
radice.wm_iconn ame("spunta")
miaApp = MiaApp(radice)
radice.mainloop ()
Jul 18 '05 #3
Your app seems to give the right state values only if you select 'Freni
a posto'. But I see you recognize that with your 'FIXME' note.

also the app seems to have too many variables and widgets defined as
self objects. That isn't necessary unless they will be used outside
the method they were created in (which labels and buttons usually
aren't), so all you are doing is using up more memory than necessary.
Reading the code with Italian names adds a little difficulty in
understanding your code (non parlo italiano ma si parlo espagnol), but
I'm left feeling that your app is more complicated than it needs to be
- unless I'm missing something. What you are doing is just showing how
you can capture the state of the checkbuttons for use elsewhere, right?
And also, that the state in the 2nd window should be live, so that it
updates with the change in value in the 1st window? And just a matter
of personal taste, but splitting up widget configuration over many
lines for me impedes readiblity and makes the code look like java or
c++ : surely not what we want?

I also think you could get away with no frames in your initial window,
at least if you use grid() instead of pack(). Also your three state
variables could be members of a list, so you don't have to have
separate constructors for each of them.

Anyway here's a version of your app that makes use of a 'for' statement
to draw the labels and checkbuttons, so it's only half as long as your
original app. It also does the right thing - the key pont you were
missing was to use a 'textvariable' argument in defining your label
widgets in the 2nd window.

cheers
Stewart in Calgary

---
#tested on Windows XP with Python 2.4

from Tkinter import *

class MiaApp:
def __init__(self, genitore):
self.debug = 1 #debug flag
self.fonte = ("Helvetica" , 12)
self.fonteVar = ("Helvetica" , 14)

msg = Label(genitore, font = self.fonte, wraplength = "10c",
justify = LEFT,
text = u"Sono qui sotto presentati tre pulsanti a
spunta. \
Premendo un pulsante, se ne varia lo stato di selezione e si \
imposta una variabile a un valore che indica lo stato del \
pulsante stesso. Premendo il pulsante \u00ABMostra \
Variabili\u00BB si possono vedere i valori correnti delle \
variabili.")
msg.grid(row=0, column=0, sticky='w')

testo = ["Tergicrist alli a posto", "Freni a posto", "Autista
sobrio"]
self.testo = testo
variabili = []
pulsanti = []
for i in range(0,3):
variabili.appen d(None)
variabili[i] = IntVar()
variabili[i].set(0)

pulsanti.append (None)
pulsanti[i] = Checkbutton(gen itore, text = testo[i],
variable = variabili[i], relief = FLAT)
pulsanti[i].grid(row=i+1, column=0,pady = 2,sticky = 'w')

self.variabili = variabili

var1 = Button(genitore , text = "Mostra Variabili",
command = self.pulsanteMo straVariabiliPr emuto)
var1.grid(row=4 , column=0)

annulla = Button(genitore , text = "Annulla",
command = genitore.destro y)
annulla.grid(ro w=4, column=1)
def pulsanteMostraV ariabiliPremuto (self):
argomenti = []
for i in range(0,len(sel f.variabili)):
argomenti.appen d(self.variabil i[i].get())
if self.debug:
print "%s=%i" % (self.testo[i],
self.variabili[i].get())
self.mostraVari abili(argomenti )
def mostraVariabili (self, *argomenti):
dialogo = Toplevel()
dialogo.wm_titl e("Valori delle variabili")
self.dialogo = dialogo

titolo = Label(dialogo,
text = "Valori delle variabili:", width = 20,
font = self.fonteVar )
titolo.grid(row =0, column=0, sticky='w' )

massimo = len(max(self.te sto)) + 2
valore = []
pulsanti = []
for i in range(0,3):
pulsanti.append (None)

pulsanti[i] = Label(dialogo,
text = 'self.%s' % self.testo[i].split()[0],
width = massimo)
pulsanti[i].grid(row=1+i, column=0, pady = 2,sticky = 'w')
valore.append(N one)
valore[i] = Label(dialogo, text = self.variabili[i].get(),
textvariable = self.variabili[i])
valore[i].grid(row=i+1, column=1, pady = 2, sticky = 'w')

vaBene = Button(dialogo, text = "Va Bene",
command = self.pulsanteVa BenePremuto)
vaBene.bind("<R eturn>", lambda e=1:
self.pulsanteVa BenePremuto() )
vaBene.focus_fo rce()
#items can span more than one column if desired
vaBene.grid(row =4, column=0, pady = 2, sticky='e')

def pulsanteVaBeneP remuto(self):
self.dialogo.de stroy()
radice = Tk()
radice.wm_title ("Dimostrazi one Pulsanti a Spunta")
radice.wm_iconn ame("spunta")
miaApp = MiaApp(radice)
radice.mainloop ()

Jul 18 '05 #4
st************* **@gmail.com wrote:
Your app seems to give the right state values only if you select 'Freni
a posto'. But I see you recognize that with your 'FIXME' note.

also the app seems to have too many variables and widgets defined as
self objects. That isn't necessary unless they will be used outside
the method they were created in (which labels and buttons usually
aren't), so all you are doing is using up more memory than necessary.

very good advice. i'll try to follow it (i am a newbie, you see...)

Reading the code with Italian names adds a little difficulty in
understanding your code (non parlo italiano ma si parlo espagnol),
i am trying to write an introductory article for an italian audience,
you see... next time i'll try to translate the names (i was a bit in a
hurry, sorry ;-)
but
I'm left feeling that your app is more complicated than it needs to be
- unless I'm missing something. What you are doing is just showing how
you can capture the state of the checkbuttons for use elsewhere, right?
And also, that the state in the 2nd window should be live, so that it
updates with the change in value in the 1st window?
precisely.
And just a matter
of personal taste, but splitting up widget configuration over many
lines for me impedes readiblity and makes the code look like java or
c++ : surely not what we want?
right... :-)

I also think you could get away with no frames in your initial window,
at least if you use grid() instead of pack().
as a matter of personal taste i prefer pack(), unless special reasons
for doing differently. i like better to give general structure
(hyerarchically ) to the gui than hardcoding the appearance.
Also your three state
variables could be members of a list, so you don't have to have
separate constructors for each of them.

ok...
Anyway here's a version of your app that makes use of a 'for' statement
to draw the labels and checkbuttons, so it's only half as long as your
original app. It also does the right thing - the key pont you were
missing was to use a 'textvariable' argument in defining your label
widgets in the 2nd window.

cheers
Stewart in Calgary


i am going to study it thoroughly. thanks a lot.

bye

macs
Jul 18 '05 #5
> also the app seems to have too many variables and widgets defined as
self objects. That isn't necessary unless they will be used outside
the method they were created in (which labels and buttons usually
aren't), so all you are doing is using up more memory than necessary.

you are right, and at the end of this post you will find a new version
of my code which heeds to your suggestion.

but i think there are exceptions.

consider for example building a BitmapImage for successive use in a
widget, such as:

self.immagine_1 a = PhotoImage()
self.immagine_1 a.configure(
file = "terra.gif"
)

self.e1 = Label(self.quad ro_grande)
self.e1.configu re(
image = self.immagine_1 a,
bd = 1,
relief = SUNKEN
)

if we follow your advice we should do:

immagine_1a = PhotoImage()
....

instead, but it doesn't work. why?
And just a matter
of personal taste, but splitting up widget configuration over many
lines for me impedes readiblity and makes the code look like java or
c++ : surely not what we want?

i thought about it. i prefer not to have lines longer than the usual 80
char display, since (in my opinion) this produces an even more
unreadable code layout. but we are starting a holy war i think...
Also your three state
variables could be members of a list, so you don't have to have
separate constructors for each of them.

it's true. but the drawback is that you have to keep an explicit
mappping between names and variables; and what's worst is that this
mapping must be known by the function that displays the second windows,
and this is against data hiding.

if you are so kind as to peek at the attached code, you'll see that i
also have restructured that part as one class. i'd like to hear your
opinion about that. (now the code for the second window in completely
reusable, i guess)
Anyway here's a version of your app that makes use of a 'for' statement
to draw the labels and checkbuttons, so it's only half as long as your
original app. It also does the right thing - the key pont you were
missing was to use a 'textvariable' argument in defining your label
widgets in the 2nd window.
.... and to use eval()

massimo = len(max(self.te sto)) + 2


better: massimo = max(map(len, self.testo)) + 2

.....

anyway, here it is. bye!

----

from Tkinter import *

class MiaApp:
def __init__(self, genitore):

fonte = ("Helvetica" , 12)

quadro_grande = Frame(genitore)
quadro_grande.p ack(expand = YES, fill = BOTH)

msg = Label(quadro_gr ande)
msg.configure(
font = fonte,
wraplength = "10c",
justify = LEFT,
text = u"Sono qui sotto presentati tre pulsanti a spunta. \
Premendo un pulsante, se ne varia lo stato di selezione e si \
imposta una variabile a un valore che indica lo stato del \
pulsante stesso. Premendo il pulsante \u00ABMostra \
Variabili\u00BB si possono vedere i valori correnti delle \
variabili."
)
msg.pack(side = TOP)

pulsanti = Frame(quadro_gr ande)
pulsanti.pack(s ide = BOTTOM, fill = X, padx = "2m")

pulsanti_spunta = Frame(quadro_gr ande)
pulsanti_spunta .pack(side = TOP, fill = X, padx = "2m")

chiudi = Button(pulsanti )
chiudi.configur e(text = "Chiudi", command = genitore.destro y)
chiudi.pack(sid e = LEFT, expand = YES)

self.var = Button(pulsanti )
self.var.config ure(
text = "Mostra Variabili",
command = self.pulsanteMo straVariabiliPr emuto,
default = NORMAL
)
self.var.pack(s ide = LEFT, expand = YES)

self.tergicrist alli = IntVar()
ps1 = Checkbutton(pul santi_spunta)
ps1.configure(
text = "Tergicrist alli a posto",
variable = self.tergicrist alli,
relief = FLAT
)
ps1.pack(side = TOP, pady = 2, anchor = W)

self.freni = IntVar()
ps2 = Checkbutton(pul santi_spunta)
ps2.configure(
text = "Freni a posto",
variable = self.freni,
relief = FLAT
)
ps2.pack(side = TOP, pady = 2, anchor = W)

self.autista = IntVar()
ps3 = Checkbutton(pul santi_spunta)
ps3.configure(
text = "Autista sobrio",
variable = self.autista,
relief = FLAT
)
ps3.pack(side = TOP, pady = 2, anchor = W)

def pulsanteMostraV ariabiliPremuto (self):
if self.var.cget(" state") == ACTIVE:
self.var.config ure(state = DISABLED)
mv = MostraVariabili (
self,
"tergicristalli ",
"freni",
"autista"
)

class MostraVariabili (Toplevel):
def __init__(self, chiamante, *variabili):

Toplevel.__init __(self)

self.mioChiaman te = chiamante

fonteVar = ("Helvetica" , 14)

self.wm_title(" Valori delle variabili")

quadro_grande = Frame(self)
quadro_grande.p ack(expand = YES, fill = BOTH)

titolo = Label(quadro_gr ande)
titolo.configur e(
text = "Valori delle variabili:",
width = 20,
font = fonteVar
)
titolo.pack(sid e = TOP, fill = X)

lung = max(map(len, variabili))

dq = {}
dn = {}
dv = {}
for i in variabili:
dq[i] = Frame(quadro_gr ande)
dq[i].pack(side = TOP, anchor = W, fill = X)

dn[i] = Label(dq[i])
dn[i].configure(
text = i + ": ",
width = lung + 2,
anchor = W
)
dn[i].pack(side = LEFT)

dv[i] = Label(dq[i])
dv[i].configure(
textvariable = eval("self.mioC hiamante." + i),
anchor = W
)
dv[i].pack(side = LEFT, expand = YES, fill = X)

vaBene = Button(quadro_g rande)
vaBene.configur e(
text = "Va Bene",
command = self.pulsanteVa BenePremuto,
default = ACTIVE
)
vaBene.bind("<R eturn>", self.pulsanteVa BenePremuto_a)
vaBene.focus_fo rce()
vaBene.pack(sid e = BOTTOM, pady = 2)

def pulsanteVaBeneP remuto(self):
self.destroy()
self.mioChiaman te.var.configur e(state = NORMAL)

def pulsanteVaBeneP remuto_a(self, evento):
self.pulsanteVa BenePremuto()

radice = Tk()
radice.wm_title ("Dimostrazi one Pulsanti a Spunta")
radice.wm_iconn ame("spunta")
miaApp = MiaApp(radice)
radice.mainloop ()
Jul 18 '05 #6
Macs:

"if we follow your advice we should do:

immagine_1a = PhotoImage()
....

instead, but it doesn't work. why? "

Images are a special case. You need to create an object instance of
them through the self. construction or else Tkinter seems to forget
about them within a couple of lines of code. so yes, just use
self.immagine_1 a and it should work.

lots of good information on:
http://tkinter.unpy.net/wiki

I took a quick look at your app but the button doesn't open the 2nd
window. I see that you sent your message a few days ago so you've
probably solved that problem by now.

S

Jul 18 '05 #7

This thread has been closed and replies have been disabled. Please start a new discussion.

Similar topics

5
7194
by: Andrew Gregory | last post by:
Could someone help me out with these few lines of code: I would like to know why the Quit button in this application removes the buttons and causes "Quitting" to be printed, but does not close the outer frame. Andrew. # Demonstration TK interface Windows application # Runs ok from within IDLE
2
26223
by: Rob | last post by:
My first GUI so be gentle... When I start my program I call a class that runs the initial window. While in this class if a certain button is pressed it calls a function outside the class. This function then initially calls another function to "root.destroy()". Basically I want the current window gone so the function I just called can open...
3
2323
by: Mickel Grönroos | last post by:
Hi everybody, I'm using QuickTimeTcl (3.1) to be able to play movie files in my Tkinter application (Python 2.3.2) on Windows 2000. I was planning to write a simple wrapper class, QuickTimeMovie, that would wrap up the QuickTimeTcl Tcl extension as a Python class. All seems to work pretty fine until the Tkinter application is closed, when...
5
2993
by: max(01)* | last post by:
hello. i wrote a very simple tkinter demo program that uses menus, buttons, labels, entries, frames and secondary toplevels. it is a python version of a java program made by a colleague. the user can create ("Scrivi") a record with his second name, first name and date of birth, save ("Salva") the record to a file or read in ("Leggi") a...
0
2343
by: Stewart Midwinter | last post by:
I have a Tkinter app running on cygwin. It includes a Test menu item that does nothing more than fetch a directory listing and display it in a Toplevel window (I'd use a tkMessageBox showinfo widget, but for some reason the text is invisible on cygwin). After I close the Toplevel widget, all of the menus in my app behave as though they...
1
3588
by: Michael Yanowitz | last post by:
Hello: Below I have included a stripped down version of the GUI I am working on. It contains 2 dialog boxes - one main and one settings. It has the following problems, probably all related, that I am hoping someone knows what I am doing wrong: 1) Pressing the Settings.. Button multiple times, brings up many instances of the Settings...
3
2972
by: joshdw4 | last post by:
I hate to do this, but I've thoroughly exhausted google search. Yes, it's that pesky root window and I have tried withdraw to no avail. I'm assuming this is because of the methods I'm using. I guess my question is two-fold. 1) How do I get rid of that window? 2) Any comments in general? I am just learning python (and coding with classes), so...
3
3907
by: J-Burns | last post by:
Hello. Im a bit new to using Tkinter and im not a real pro in programming itself... :P. Need some help here. Problem 1: How do I make something appear on 2 separate windows using Tkinter? By this I mean that the format would be something like this: You have Page1 : This has 2-3 buttons on it. Clicking on each button opens up a new...
0
3980
by: nicstel | last post by:
Hello. My script run fine within python but not in my program(SDS/2 wich is a software like Autocad). The problem is I got an error when the time comes to read the line14 to 19. (Source code come from Tkinter.py) class Tk(Misc, Wm): """Toplevel widget of Tk which represents mostly the main window of an appliation. It has an...
0
7845
marktang
by: marktang | last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main...
0
8120
Oralloy
by: Oralloy | last post by:
Hello folks, I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>". The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed. This is as boiled down as I can make it. ...
0
8281
jinu1996
by: jinu1996 | last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that...
1
7868
by: Hystou | last post by:
Overview: Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For...
1
5664
isladogs
by: isladogs | last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM). In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules. He will explain when you may want to use classes...
0
5338
by: conductexam | last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one. At the time of converting from word file to html my equations which are in the word document file was convert...
0
3778
by: TSSRALBI | last post by:
Hello I'm a network technician in training and I need your help. I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs. The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols. I succeeded, with both firewalls in...
1
2286
by: 6302768590 | last post by:
Hai team i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
1
1382
muto222
by: muto222 | last post by:
How can i add a mobile payment intergratation into php mysql website.

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.