Re: checkedlistbox in c# - C# Discussion Boards

DataGridView Binding.(Takes along time to load)

Said Ali Jalali12-Sep-09 2:47

12-Sep-09 2:47

Hi everyOne.
I have dataGridView in my project whitch is Bind to my dataBase
(Student's Table).After 3 months that the user has Saved around 3,000 rows in that table Now when they open that form with 3,000 Rows in Student's table it takes along time to load the form(Form become white).
What should i do to run that form without any problem and Quickly?
Thank u.

CanI

Re: DataGridView Binding.(Takes along time to load)

Henry Minute12-Sep-09 3:35

Henry Minute

12-Sep-09 3:35

You need to filter what is retrieved and or displayed.

To filter what is retrieved, put a WHERE clause in the SELECT statement, to limit it to students whose name begins with 'A', for example. then allow the users to hit a 'Next' or 'Previous' button to move from the 'A's to the 'B's and vice versa. Or by their Major, or whatever.

To Filter what is displayed, the BindingSource has a Filter property that you can use to get a similar effect.

Hope this helps! Smile | :)

Henry Minute

Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”

UpdateProgress

4anusha412-Sep-09 1:02

4anusha4

12-Sep-09 1:02

how to use update progress bar while loading a panel on clicking the save button the save button exists in the other panel

Re: UpdateProgress

Henry Minute12-Sep-09 1:53

Henry Minute

12-Sep-09 1:53

This is such a common question that I am going to recommend that you search the CP messages, using the Search box at the top of the page. Or Bingle for it.

checkedlistbox in c#

billy dev12-Sep-09 0:35

billy dev

12-Sep-09 0:35

hi guys,
i use in my form a checkedlistbox ...my problem is that when i write this code this.checkedListBox1.SelectionMode = SelectionMode.One; i would expect only one checkbox to be checked every time.But in my case i can select all the checkboxes so something is wrong..
thanks in advance..

Re: checkedlistbox in c#

Eddy Vluggen12-Sep-09 1:48

Eddy Vluggen

12-Sep-09 1:48

I guess that the CheckedListBox can only have one selected item (meaning that only one row has highlighted atta time)

That doesn't limit the number of check's that the user can set. Checkboxes aren't mutually exclusive, they "hint" that the user can check multiple items. If you want a mutual exclusive selection, try changing to a RadioButton[^].

The radiobutton allows the user to select 1 item from the list of options.

I are Troll Smile | :)

Re: checkedlistbox in c#

Henry Minute12-Sep-09 1:50

Henry Minute

12-Sep-09 1:50

I haven't checked this out, since I don't have VS on this machine, but SelectionMode usually refers to the Items in the ListBox not the CheckBoxes.

I do not know of any simple way to restrict how many items are checked. You can periodically check on the CheckedItems collection and uncheck any except for the one you want, but what event you would use to trigger this checking, I do not know. Smile | :)

Re: checkedlistbox in c#

Alan N12-Sep-09 3:55

Alan N

12-Sep-09 3:55

Hi,
Confusingly the SelectionMode does not refer the number of items that may be checked but the desired effect is possible through the ItemChecked event.

The new item is checked only after the handler returns and so single selection can be achieved by simply removing all existing checks.

private void CheckedListBox_ItemCheck(object sender, ItemCheckEventArgs e) {
  if (e.NewValue == CheckState.Checked) {
    CheckedListBox clb = sender as CheckedListBox;
    if (clb != null) {
      // remove all current checks
      foreach (Int32 index in clb.CheckedIndices) {
        clb.SetItemCheckState(index, CheckState.Unchecked);
      }
    }
  }
}

Alan.

Re: checkedlistbox in c#

April Fans22-Sep-09 16:14

April Fans

22-Sep-09 16:14

Hi,

checkedlistbox.selectionMode can not limit the count of selected items

you can use JS code to control

or you can try: GroupBoxCheckBox or GroupBoxCheckBox

April

Comm100 - Leading Live Chat Software Provider

modified 27-May-14 22:02pm.

Applying Security for the Application

vijaylumar12-Sep-09 0:32

vijaylumar

12-Sep-09 0:32

hi
i developed a project and a setup is made using dotnet.
my requirement is it should run only in one system.

suppose if a client has 10 systems
if i install it in system1, then it should run in system1 only

if the same setup is installed in system2 then it should not run

is it possible

Re: Applying Security for the Application

Eddy Vluggen12-Sep-09 1:51

Eddy Vluggen

12-Sep-09 1:51

vijaylumar wrote:
is it possible

Yes. Find something to identify the computer that the application is installed on (harddisk serial, computer name), and check whether this has changed during your last run.

I are Troll Smile | :)

Direction of increasing a LabelText ?

Mohammad Dayyan12-Sep-09 0:10

Mohammad Dayyan

12-Sep-09 0:10

Hi.

Whenever I change the text of a label with long text the direction of the increasing is to the right.
like these images :
01[^] >> 02[^]

I want to change it, I mean I want to change the direction to the left !
Could you please guide me ?

Thanks.

Re: Direction of increasing a LabelText ?

Manas Bhardwaj12-Sep-09 0:16

Manas Bhardwaj

12-Sep-09 0:16

Just a guess, but if in your case you have a langauge which is read from right to left than you can use the RightToLeft property of the label and set it to true.

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

Re: Direction of increasing a LabelText ?

Mohammad Dayyan12-Sep-09 0:42

Mohammad Dayyan

12-Sep-09 0:42

I've tested it, but it doesn't change the direction of increasing.

Re: Direction of increasing a LabelText ?

OriginalGriff12-Sep-09 1:02

OriginalGriff

12-Sep-09 1:02

Because the label always assumes it's position from the top left corner (like all controls) it will not automatically grow to the left. The only way you can do what you want is to set the TextAlign to MiddleRight, TopRight or BottomRight, and set AutoSize to false. Manually set a good size for the label, and the text will grow to the left.

No trees were harmed in the sending of this message; however, a significant number of electrons were slightly inconvenienced.

This message is made of fully recyclable Zeros and Ones

Want to develop Email Creater

xodeblack11-Sep-09 23:19

xodeblack

11-Sep-09 23:19

Hi all
I want to make application that take name,password ,Email as input and create me Email in hotmail.....so can anyone give me idea to develop this application.....

Dre@m is not th@t wh@t u see in sleep.Dre@m is the thing which does not allow u to sleep

Re: Want to develop Email Creater

Parwej Ahamad12-Sep-09 0:14

Parwej Ahamad

12-Sep-09 0:14

You need to post web form form your code. Find the below URL-
http://www.dijksterhuis.org/simple-class-to-submit-post-a-web-form-from-csharp/[^]

Parwej Ahamad
ahamad.parwej@gmail.com

Want MapInfo files samples

xodeblack11-Sep-09 23:14

xodeblack

11-Sep-09 23:14

Hi all
I want samples of mapInfo files....can anyone provide me or give me URL from where I can download it .........I want to make software
that read mapInfo files and create map from these files

Dre@m is not th@t wh@t u see in sleep.Dre@m is the thing which does not allow u to sleep

Re: Want MapInfo files samples

riced11-Sep-09 23:34

riced

11-Sep-09 23:34

Google for 'mapinfo net c#'

Regards
David R
---------------------------------------------------------------
"Every program eventually becomes rococo, and then rubble." - Alan Perlis

Network Server Sockets

CRAZYCRICKET22511-Sep-09 22:45

CRAZYCRICKET225

11-Sep-09 22:45

Hello,
I have a class called Host which contains a thread waiting for "x" players to get Accept()(array of sockets)
(I am using the EaterGame classes)
I want to allow the user to choose dynacimlly how much ppl he wants to Accept() and not just as the server created.

I have a button called "connect" which hold an event to send EndAccept() to the last Accept() which was created in the array of sockets.

I was reading some books and understood that EndAccept() can be used only if I use BeginAccept and still EndAccept wont be called outsite the function.

How can I cancel an Accept() request ? I just want the thread which create the array to contiune...

Thanks!

Mailbox name not allowed. The server response was: sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)

khosnur11-Sep-09 20:48

khosnur

11-Sep-09 20:48

When i send mail to my own domain it works fine but when i send mail to another domain like gmail,yahoo it gives above exception.

would u tell me why?

Thanks in advance

Md Shafikul Islam

Re: Mailbox name not allowed. The server response was: sorry, that domain isn't in my list of allowed rcpthosts (#5.7.1)

Christian Graus11-Sep-09 21:06

Christian Graus

11-Sep-09 21:06

Well, if this was a programming question, I'd expect it to come with some code. I would guess that you're using your own mail server, and it's refusing to send the mail on, or you work for a notorious generater of spam, and therefore your server has been blocked by both gmail and yahoo.

Christian Graus

Driven to the arms of OSX by Vista.

Read my blog to find out how I've worked around bugs in Microsoft tools and frameworks.

Adobe ActiveX control highlighting

minnie mouse11-Sep-09 16:55

minnie mouse

11-Sep-09 16:55

Is it possible to highlight a defined area of a rendered PDF file, using the adobe Reader activeX control ver 7.0 ?
I cannot seem to be able to this, i can display fine but cannot draw on or highlight an area ?
Help from someone experienced here would be appreciated, the methods seem to be there, but i cant get a result.

Re: Adobe ActiveX control highlighting

April Fans21-Sep-09 21:04

April Fans

21-Sep-09 21:04

1) 'setview' function may can help you, but i think it's impossible.
2) try to use win32 API to find the control you want to highlight, but i think it's impossible.

adobe Reader activeX control ver 7.0 never support that Interface functions.

April

Comm100 - Leading Live Chat Software Provider

modified 27-May-14 22:03pm.

ClickOnceDeployment for a console app to be run as a scheduled task...

ToddHileHoffer11-Sep-09 10:10

ToddHileHoffer

11-Sep-09 10:10

If I use the publish feature and ClickOnceDeloyment, can I schedule that application as scheduled task?

I didn't get any requirements for the signature

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