How to preload forms

[Luc]

In my application I use an mdi form in which I display several forms,
What is the best way to preload this forms ? during the load event I goto
the database to fill my comboxes....

thx for your quick response!

 

[Dejan Stanic]

What do you mean by 'preloading'?
Do you want to create/instantiate whole forms in background,
or do you just need to create some structures and fetch some data?

LP,
Dejan

 

[Amar]

What do you mean by 'preloading'?
Do you want to create/instantiate whole forms in background,
or do you just need to create some structures and fetch some data?

LP,
Dejan

I am facing the same problem.
What I want to do is, fill the comboboxes with values and fetch some
data. If I do this on form load, or in the constructor, the form
becomes too sluggish...
Is the only alternative to fire a background thread to do the
fetching, and then invoke the forms thread to fill the combos??

 

[Dejan Stanic]

Is the only alternative to fire a background thread to do the
fetching, and then invoke the forms thread to fill the combos??

I believe so, yes.

LP,
Dejan

 

[Amar]

I believe so, yes.

LP,
Dejan

And this actually works except for a catch..
Turn the crossthreadingexception off, do the combo filling and then
turn it on again.
Also dont invoke, just fill the combo from the other thread.
I know I am cheating.. ...

Else there is actually no difference if you use invoke, cause it is
finally going to be executed on the same thread...

 

[Daniel J Rodriguez Perez]

Sorry but my English is not very good, i think this can help you...

Displays a preload windows form (with opacity) while running application in the second thread with backgroundworker

http://www.elguille.info/colabora/2009/danicuco_Precarga_WindowsForm_BackGorundWorker.htm

you enjoy?

Danicuco



Lu wrote:

How to preload forms
22-ene-08

In my application I use an mdi form in which I display several forms,
What is the best way to preload this forms ? during the load event I goto
the database to fill my comboxes...

thx for your quick response
--
Best regard
Luc

Previous Posts In This Thread:

On martes, 22 de enero de 2008 19:56
Lu wrote:

How to preload forms
In my application I use an mdi form in which I display several forms,
What is the best way to preload this forms ? during the load event I goto
the database to fill my comboxes...

thx for your quick response
--
Best regard
Luc

On viernes, 25 de enero de 2008 17:29
Dejan Stanic wrote:

What do you mean by 'preloading'?
What do you mean by 'preloading'
Do you want to create/instantiate whole forms in background
or do you just need to create some structures and fetch some data

LP
Dejan

On s?bado, 26 de enero de 2008 5:39
Dejan Stanic wrote:

Re: How to preload forms
I believe so, yes

LP
Dejan

On mi?rcoles, 06 de febrero de 2008 6:55
Amar wrote:

Re: How to preload forms
On Jan 26, 3:29 am, "Dejan Stanic" <piki.laiks@org -- (swap th
obvious)> wrote

I am facing the same problem
What I want to do is, fill the comboboxes with values and fetch som
data. If I do this on form load, or in the constructor, the for
becomes too sluggish..
Is the only alternative to fire a background thread to do th
fetching, and then invoke the forms thread to fill the combos??

On mi?rcoles, 06 de febrero de 2008 6:55
Amar wrote:

Re: How to preload forms
On Jan 26, 3:39 pm, "Dejan Stanic" <piki.laiks@org -- (swap th
obvious)> wrote

And this actually works except for a catch.
Turn the crossthreadingexception off, do the combo filling and the
turn it on again
Also dont invoke, just fill the combo from the other thread
I know I am cheating.. ..

Else there is actually no difference if you use invoke, cause it i
finally going to be executed on the same thread...

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