C# Discussion Boards - CodeProject

Alomgir Miah20-Jul-05 3:29

20-Jul-05 3:29

Is this a high transactional database. What is the rate of such events. I had encountered similar scenario and I did the following

(1) If any event occur in the database, write the data to a Database Table inside a trigger( specifically for this).
(2) A windows service in Client keeps polling this table after say every 30 sec.
(3) If records are found do the refresh.

Hope this helps.

Thanks,
Alomgir Miah
Live Life King Size

c# SMS project

Member 183508320-Jul-05 0:02

Member 1835083

20-Jul-05 0:02

hi.. i am planning to build an application that involves sms. the concept is mobile phone1 sends a messsage that contains keywords (example BALANCE) to another mobilephone2 that is connected to a computer. Once received, it accesses the computer's database. The information is retrieved and then is sent to the mobile phoneA.
The problem is i don't know where to start. can u guys give me a clue? i also need resources of existing application for my documentations.. please help.. tnx

Help me!

hoale19-Jul-05 23:32

hoale

19-Jul-05 23:32

Hi all!
I write a C# class and compile to DLL file, then I register it thus DCOM. How can I use it in C# remote application?
Thanks!

Help me!

hoale19-Jul-05 23:30

hoale

19-Jul-05 23:30

Hi all!
I write a C# class and compile to DLL file, then I register it thus DCOM. How can I use it in C# application?
Thanks!

Re: Help me!

DavidNohejl20-Jul-05 3:40

DavidNohejl

20-Jul-05 3:40

Well if it is C# class then you can reference your dll in another C# project... COM registration is unnecessary in this case.
Just right click on References in Project EXplorer (assuming you use Visual Studio) and add your dll... you can then simply use all public classes in that dll.

David

Re: Help me!

hoale20-Jul-05 22:39

hoale

20-Jul-05 22:39

Thanks! But i want to call some methods of class on another machine!
System.Type type = Type.GetTypeFromProgID("ProgID","ServerAddress");
object obj = System.Activator.CreateInstance(type);
How do I use obj to call some method of it!
Thanks for your help!

hoale

textbox validation

dhol19-Jul-05 23:14

dhol

19-Jul-05 23:14

Hi
I am completely new to c# .so i am just into basics.
just now i am beginning to work with windows forms

now i have to add a text box and a insert button
now when iam entering the text it should be inserted when the button is clicked.
now wht i need is that when the text box is empty and when i clicked the button , it should show a message saying that textbox is empty

I Think this is very smalll problem. But as iam new, pls guide me to do it .

j o h n

Re: textbox validation

S. Senthil Kumar20-Jul-05 0:32

S. Senthil Kumar

20-Jul-05 0:32

Subscribe to the button's click event (Double click on the button in Forms Designer, if you're using VS) and then inside the event handler, check if the textbox's Text property is equal to String.Empty

Regards
Senthil
_____________________________
My Blog | My Articles | WinMacro

Re: textbox validation

Luis Alonso Ramos20-Jul-05 8:08

Luis Alonso Ramos

20-Jul-05 8:08

void myButton_Click(object sender, EventArgs e)
{
    if(myTextBox.TextLength > 0)
    {
        // Do anything to insert the text somewhere
    }
    else
    {
        // Text box is empty
        MessageBox.Show(this, "Textbox is empty!", "Error!", MessageBoxButtons.OK,
            MessageBoxIcon.Warning);
    }
}

I hope this helps! Smile | :)

-- LuisR

Luis Alonso Ramos
Intelectix - Chihuahua, Mexico

Not much here: My CP Blog!

Listbox problem

nidhelp19-Jul-05 22:43

nidhelp

19-Jul-05 22:43

Hi.

Any idea how do i...

i) arrange/sort people's names displayed in a listbox in alphabetical order AND by their surnames?

ii) search for people by name? (my code now can only search by their ID no.)

Thz a lot!

Re: Listbox problem

tatchung19-Jul-05 23:40

tatchung

19-Jul-05 23:40

Hi!

Im new to c# but I'l try my best to be of help.

i) the answer is posted just about 5 topic post below yours

ii) I think its either you create 2 search buttons one for the ID no and the other for the name or create a dropdownlist that triggers the search function when you select one of the items inside it. Name or ID.

of course its only logic I still have to figure out how to do it by code. hehe

hope that helps...even for bit Big Grin | :-D

Amazon Inventory Management

Anonymous19-Jul-05 22:04

Anonymous

19-Jul-05 22:04

hi how can i use Amazon Inventory Management Service ?
i write application with useing Amazaon ECS 4 but it alow me only to search in amazon and i don't know how can i creat and manipulate Inventory in amazon .
please help me.
my email: mtaghiloo@yahoo.com
majid taghiloo

raise event from a web service with c#

fady_sayegh19-Jul-05 22:00

fady_sayegh

19-Jul-05 22:00

hi to all,

i made a web service to communicate with an sql server database.

how can i, raise an event from my web service and catch it in my c# win application. i want to do that because in my c# win application i need to get the sql server informationnal messages (user messages)

i tried to use the delegate, but i think i missed something, does any one have an example.

best regards and thanks in advance

fady

How to Insert Row in winform Datagrid ?

Tushar Bhatt19-Jul-05 21:29

Tushar Bhatt

19-Jul-05 21:29

Can anybody help me with code snippet that can guide me in inserting row in the datagrid control without any data source in the background(i.e. no data connection). I just want to use this datagrid as a source of collecting rows of data from the users. I want to handle insertion of data in database myself.

Re: How to Insert Row in winform Datagrid ?

Gavin Jeffrey19-Jul-05 22:04

Gavin Jeffrey

19-Jul-05 22:04

AFAIK you need to specify the datagrid with a datasource (i stand to be corrected and if somebody knows of a way to do this i would like to hear it). What you could do is just create a DataTable dynamically to add rows. You wouldn't need to link the datatable to anything except the datagrid.

Re: How to Insert Row in winform Datagrid ?

Tushar Bhatt20-Jul-05 19:07

Tushar Bhatt

20-Jul-05 19:07

Thanks.

Communication between windows and web application.

Navees Ahmed19-Jul-05 19:57

Navees Ahmed

19-Jul-05 19:57

Hi,

I am working on windows application which store data in xml and put media elements(like images) in folder. I am making zip file of xml and media element folder. Now I need to send this zip file on web server where my web application will unzip this file and will put xml data to sqlserver and place media elements to specific directory.

My question is, How I can send zip file to web application, I have considered FTP but it is not safe because it needs username and password, is there any other solution, if yes then please help me.

Thanks
navees

Re: Communication between windows and web application.

Gavin Jeffrey19-Jul-05 22:00

Gavin Jeffrey

19-Jul-05 22:00

Create a webservice method that accepts a byte[] as a parameter then just call the method with the zip as a byte[]. Then just rebuild the zip on the webservice side.

sort information in a listbox by name

nidhelp19-Jul-05 19:36

nidhelp

19-Jul-05 19:36

how do i sort information in a listbox by name (that is, alphabetical order)? im doing c# programming n using microsoft visual studio .net 2003.

Re: sort information in a listbox by name

Kodanda Pani19-Jul-05 21:03

Kodanda Pani

19-Jul-05 21:03

Hi,

You can use the Sorted property of the list box to do this. Set the value of this property to "True".

Thanks and Regards
Pani.

nid codes for project

nidhelp19-Jul-05 19:23

nidhelp

19-Jul-05 19:23

hi.. im new to c#.. got to do a project to display data (that was downloaded from another PC to my PC) on bar graphs like those u can find in www.advsofteng.com/gallery_bar2.html > graph titled 'Product Revenue For Last 3 Years'.. i nid the codes to produce such a graph and which reflects my data on the graph..

In order for the graph to b displayed, i nid to let user click on tree view (on the tree view there's medicine 1, medicine 2 and medicine 3).. Under each of the medicine, user shd b able to click on any of the months (jan to dec) and a graph will display the date and time of medicine taken for dat particular month..

If the patient did not take medicine on certain dates eg. 2 july and 6july, it shd reflect bars on all the dates except on 2july n 6 july.

thz a lot! any help is appreciated..

ps: im using microsoft visual studio .net 2003

Virtual Keyboard help plz

arun_appu19-Jul-05 18:22

arun_appu

19-Jul-05 18:22

i have created an on screen Virtual keyboard
what i did was i found the handle for the web browser form and directly used the send keys fn:-

IntPtr webHandle = FindWindow("WindowsForms10.Window.8.app3", "Web Browser");
if (webHandle == IntPtr.Zero)
{
MessageBox.Show("Form is not running.");
return;
SetForegroundWindow(webHandle);
SendKeys.Send("{a}");
}
The problem is that no keys are going inside WebBrowser control.
Please help me urgently.
Thankyou
Arun Appukuttan

Re: Virtual Keyboard help plz

Nick Parker19-Jul-05 18:32

Nick Parker

19-Jul-05 18:32

That isn't enough, you need to get the handle to the textbox you want to send text to. You might try EnumChildWindows where you pass it the handle to the browser control. You might also consider calling SendMessage and passing it WM_SETTEXT (0x000C) with the handle to the textbox instead of using SendKeys.

[DllImport("user32.dll")]
static extern bool EnumChildWindows(IntPtr hwndParent, EnumWindowsProc lpEnumFunc, ref IntPtr lParam);

- Nick Parker
Microsoft MVP - Visual C#
My Blog | My Articles

ListView Item Selection

takkung19-Jul-05 18:05

takkung

19-Jul-05 18:05

Hi everybody!!
I 've a problem about ListView In my Windows Form Application. I 've created a song playlist editor that use list view to display the songs and I have move up and move down button for move the song up and down in the list view. But when I push the move up or move down button the row selection will disappear because it lost focus.
Does anyone know how can I preserve the row selection of list view because it doesn't have SetSelected method like ListBox Control?
Thank you and sorry for about my English.

Re: ListView Item Selection

Nick Parker19-Jul-05 18:16

Nick Parker

19-Jul-05 18:16

takkung wrote:
Does anyone know how can I preserve the row selection of list view because it doesn't have SetSelected method like ListBox Control?

Yep, set the ListView.HideSelection[^] property to false.

- Nick Parker
Microsoft MVP - Visual C#
My Blog | My Articles

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