Re: Focus in ToolStripControlHost after validating cancelled - C# Discussion Boards

Luc Pattyn24-May-09 6:35

24-May-09 6:35

I don't think so, since it is declared fixed, the characters themselves are in the struct now, there is no pointer/reference stored anymore, it is just N consecutive characters.

What is the higher purpose of all this anyway? Are you trying to perform some P/Invoke?
Mimicking a file or network packet content? A hardware register layout?

Smile | :)

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Re: fill structure data using c#

jalsa G24-May-09 6:44

jalsa G

24-May-09 6:44

yes u are right i have sent this packet data on tcp socket and these are server side restrictions.

Jalsa

Re: fill structure data using c#

Luc Pattyn24-May-09 7:01

Luc Pattyn

24-May-09 7:01

if the packet definition has N characters for something, then you must provide N characters; you can't transmit "null" can you? You could initialize to all spaces though.

Furthermore, be aware of the fact that .NET characters are Unicode, hence 16-bit, sooner or later you probably need to convert them to/from ASCII.

Smile | :)

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insert datagridview items with foreach in to database

h_floppy24-May-09 5:21

h_floppy

24-May-09 5:21

hi boys
how can i insert into database all datagridview items with foreach...?

Re: insert datagridview items with foreach in to database

dan!sh 24-May-09 5:24

dan!sh

24-May-09 5:24

h_floppy wrote:
with foreach

Inserting data in database through foreach Confused | :confused:

जय हिंद

Re: insert datagridview items with foreach in to database

fclose_fp24-May-11 8:01

fclose_fp

24-May-11 8:01

help me to insert the data from the datagridview.

Focus in ToolStripControlHost after validating cancelled

netogg24-May-09 4:24

netogg

24-May-09 4:24

Hello,

I've embedded a MaskedTextBox in a UserControl and added it to the ToolStrip of a Form via ToolStripControlHost:

private void Form1_Load(object sender, EventArgs e)
{
ToolStrip1.Items.Add(new ToolStripControlHost(new UserControl1()));
}

In the Validating event of the MaskedTextBox in my UserControl the value of the Text is checked and if necessary corrected:

private void maskedTextBox1_Validating(object sender, CancelEventArgs e)
{
if (maskedTextBox1.Text == "0")
{
maskedTextBox1.Text = "1";
maskedTextBox1.SelectAll();
e.Cancel = true;
}
}

The user can give any input in the MaskedTextBox, validation should only occur when "leaving". If the focus "leaves" the MaskedTextBox (by the user clicking anywhere or tabbing), validation is performed.

If validation fails ( in this case Text = "0") a corrected value ("1") is set, no events (e.g. button clicks) occur outside the control and the control's text should be highlighted

After the value was automatically corrected (the user has been shown a warning... not relevant), he can now of course "Leave" without ado.

If the UserControl is added to a Form all the described behaviour occurs.

However as the userControl is put in a ToolStripControlHost I can't get the text of the MaskedTextBox highlighted after the validation of the maskedtextbox (inside the toolstrip) fails.

Any help on this would be sincerely appreciated.

Re: Focus in ToolStripControlHost after validating cancelled

netogg29-May-09 23:53

netogg

29-May-09 23:53

Hi,

I've solved my problem, be it in a manner which could as well be posted under coding horrors:

In the validating event of the maskedTextBox I call on a timer (which was added to the userControl), and let its Tick event set the focus.

private void maskedTextBox1_Validating(object sender, CancelEventArgs e)
{
if (this.maskedTextBox1.Text == "0")
{
timer1.Start();
e.Cancel = true;
}
}

private void timer1_Tick(object sender, EventArgs e)
{
this.maskedTextBox1.Text = "1";
this.maskedTextBox1.Focus();
this.maskedTextBox1.SelectAll();
timer1.Stop();
}

Cheers. Wink | ;)

Re: Focus in ToolStripControlHost after validating cancelled

acolight17-Mar-11 10:27

acolight

17-Mar-11 10:27

I spent several hours trying to get this working, and to no avail until I stumbled upon your answer.

Whatever dark magic you've applied to this task in order to arrive at using a timer, I take it your journey as a sorcerer is already a colourful one.

Thanks alot sir.

[Message Deleted]

hkjghkj124-May-09 4:03

hkjghkj1

24-May-09 4:03

[Message Deleted]

Re: DataGridView and mdb

Manas Bhardwaj24-May-09 4:20

Manas Bhardwaj

24-May-09 4:20

myventsi wrote:
I don' t get the structures of connections and etc

This [^]is possibly one of the simplest example you could find.

Anyways, you need to buy a good book on C# and start reading it. Rose | [Rose]

Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.

KeyPress Event

Saiyed Alam24-May-09 0:58

Saiyed Alam

24-May-09 0:58

Suppose I want to call a function whenever I'll press Control + N together.
Now I know I need to catch the keyPress event. But how can I catch two key in one event..?

Thanking In Advance
Johnny

Re: KeyPress Event

DaveyM6924-May-09 1:22

DaveyM69

24-May-09 1:22

You need to use either KeyDown or KeyUp events.

if (e.KeyData == Keys.N && e.Modifiers == Keys.Control)
{
    // Do your thing
}

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)
Why are you using VB6? Do you hate yourself? (Christian Graus)

Re: KeyPress Event

Saiyed Alam24-May-09 16:37

Saiyed Alam

24-May-09 16:37

Thanks Dave..

search in site

michaelgr124-May-09 0:42

michaelgr1

24-May-09 0:42

Hello,
I have a web site with files and direcotires (with files and other directories and files.....in each).
I need to find a particular file in this site (i will provide the main site and it will search recursively inside it and inside the folder to find the file i need). How can i do it?

Re: search in site

Manas Bhardwaj24-May-09 0:57

Manas Bhardwaj

24-May-09 0:57

First of all this should be in ASP.Net forum.
Use the DirectoryInfo and FileInfo classes to perform the search.

Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.

Re: search in site

michaelgr124-May-09 0:58

michaelgr1

24-May-09 0:58

ok,
And it can search in web sites too?
BTW- i want to do it in C# windows application and not in ASP.NET

Re: search in site

Manas Bhardwaj24-May-09 1:18

Manas Bhardwaj

24-May-09 1:18

Well, that can do the search everywhere provided you have the read access in that website.

Please remember to rate helpful or unhelpful answers, it lets us and people reading the forums know if our answers are any good.

Re: search in site

michaelgr124-May-09 1:31

michaelgr1

24-May-09 1:31

OK . But in which format do i need to write the website URL?
like this?
DirectoryInfo myDir = new DirectoryInfo("http://www.yahoo.com");

?

Or how?

Refresh Datagrid

KIDYA23-May-09 23:20

KIDYA

23-May-09 23:20

Heloo Experts!!!

I am upadating date in my grid.on refresh button click it must show upadated date. i m using Datagrid.refresh() method for same.But cant work;
tel me way.using C# & SQL 2005

Please help!!

Calling Method of an Active Form from the MDI Parent

uygarer23-May-09 23:13

uygarer

23-May-09 23:13

Hi my friends;

I have a different problem. I have a main form that is MDI parent of other forms. I use speech recognition, and I started it as a thread in my main form. It works fine while opening child forms or closing them. But problem begins here. For example I have an active MDI child that have a method or button click event. How can I call the method of my active form from it's MDI parent. I want to do this because I use speech recognition, I want to guide program with my voice commands. Like following I want call DoJob method.

Form frm = this.ActiveMdiChild;

frm.DoJob();

Thank you.

Re: Calling Method of an Active Form from the MDI Parent

Moreno Airoldi24-May-09 0:12

Moreno Airoldi

24-May-09 0:12

Not sure which exactly is your problem, but you can do it this way:

1) In the child form, the DoJob() method must be either public or internal (in order to enable access from the parent form).

2) In your parent form you can do something like:

ChildForm cf = (ChildForm)this.ActiveMdiChild;
cf.DoJob();

where ChildForm is your child form's class name.

2+2=5 for very large amounts of 2
(always loved that one hehe!)

Re: Calling Method of an Active Form from the MDI Parent

DaveyM6924-May-09 0:25

DaveyM69

24-May-09 0:25

You mean you need to call the method accros threads? If so:

frm.Invoke(new MethodInvoker(delegate() { frm.DoJob(); }));

Function Caller

Saiyed Alam23-May-09 22:56

Saiyed Alam

23-May-09 22:56

Hello Friends.
Suppose I have two functions name
GetBUUser(); && GetISUser(); And both these function call a function name
LoadUserBUStatus(); Now in LoadUserBUStatus() function how do I know which is the caller function..? I hope I made myself clear..
Thanks in Advance..

Johnny

Re: Function Caller

DaveyM6923-May-09 23:02

DaveyM69

23-May-09 23:02

You need to use Reflection and the Stack. Check out this[^] article.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.