C# Discussion Boards - CodeProject

md_refay11-Nov-09 11:29

11-Nov-09 11:29

i have interface
interface1<t,r>
{
list<t> returnall;
lsit<r> returnall1
}

i need to have the ability to pass r ot not when implemrnt interface and is that cas doesn't impelement methods that return r
thanks

md_refay

Re: interface with generic type

Christian Graus11-Nov-09 11:36

Christian Graus

11-Nov-09 11:36

md_refay wrote:
i need to have the ability to pass r ot not when implemrnt interface and is that cas doesn't impelement methods that return r

This makes no sense, did your post contain tags that have been stripped ? You can't do generic interfaces AFAIK.

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.

Re: interface with generic type

PIEBALDconsult11-Nov-09 12:46

PIEBALDconsult

11-Nov-09 12:46

Christian Graus wrote:
You can't do generic interfaces

IEnumerable<T> ?

Re: interface with generic type [modified]

Luc Pattyn11-Nov-09 12:27

Luc Pattyn

11-Nov-09 12:27

I have no idea what you mean. Your post doesn't make sense to me.
However, maybe this helps:

public interface Abase<T> {
    string Xyz(T arg);
}

public class A<T> : Abase<T> where T : class {
    public string Xyz(T arg) { return arg.GetType().ToString(); }
}

[EDIT]<> fixed[/EDIT]
Smile | :)

Luc Pattyn

I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages

modified on Wednesday, November 11, 2009 6:54 PM

Re: interface with generic type

PIEBALDconsult11-Nov-09 12:47

PIEBALDconsult

11-Nov-09 12:47

Did your angles get eaten?

Re: interface with generic type

Luc Pattyn11-Nov-09 12:57

Luc Pattyn

11-Nov-09 12:57

seems like my entire post got de-angled by the HTML mob.

Smile | :)

Luc Pattyn

I only read code that is properly indented, and rendered in a non-proportional font; hint: use PRE tags in forum messages

tablelayoutpanel

farokhian11-Nov-09 11:19

farokhian

11-Nov-09 11:19

Hi
I create a tablelayoutpanel in FormDesign and because it is a big one and i need another one in the same form;
Now i want to use it twice at the same time but i want to change the text of the labels of that tablelayout for the second one,and remove some controls of the first one in CODE.
How can i change them in CODE?

THX

Re: tablelayoutpanel

Christian Graus11-Nov-09 11:24

Christian Graus

11-Nov-09 11:24

By setting the text property on the labels. IF you need to use it twice at the same time, create the whole thing as a user control, and then put two of them on the form.

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.

Re: tablelayoutpanel

farokhian11-Nov-09 11:26

farokhian

11-Nov-09 11:26

THX;
how can create a user control?

Re: tablelayoutpanel

Christian Graus11-Nov-09 11:31

Christian Graus

11-Nov-09 11:31

I suggest you abandon this task and buy a basic book on winforms and read it.

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.

SQLite datatime

jashimu11-Nov-09 10:23

jashimu

11-Nov-09 10:23

Hi all, I am trying to insert data into sqlite datetime, but it seems like making my life really deficult.

this is what I have done to do this;

con.Open();<br />
                cmd = new SQLiteCommand();<br />
                cmd = con.CreateCommand();<br />
                cmd.Connection = con;<br />
                cmd.CommandText = " INSERT INTO Hall_Call_Up (Call,Time) VALUES ('1','" + dateTime.Now.ToString("YYYY-MM-DD HH:MM:SS") + "')";<br />
                cmd.ExecuteNonQuery();

this is giving me error saying "Unable to read data"

But if I connect to datagridview and I do this;
this.hall_Call_UpTableAdapter.Insert(1, DateTime.Now);
it is working.
Can some one please help me.

thanks

Re: SQLite datatime

Christian Graus11-Nov-09 11:19

Christian Graus

11-Nov-09 11:19

Use a parameterised query and pass in a DateTime.

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.

Re: SQLite datatime

jashimu12-Nov-09 4:22

jashimu

12-Nov-09 4:22

hi Christian Graus,

Sorry for delay. I am very very new to database. infact this is for the first time I need to use database i any of my application. Do you mind to help me little more by showing how it should be done. I appolize if I am asking too much.
this is how[] the SQLite is telling me to do. Since I have never used it I don't know honeslty speaking.

thanks again.

Re: SQLite datatime

curtmayers21-Apr-10 8:38

curtmayers

21-Apr-10 8:38

The string your using will create an incorrect and unparseable DateTime string (read the MS docs for the correct DateTime templates).

The template you DO want is this: "yyyy-MM-dd HH:mm:ss".

help on SAPI interfaces

Xelalem11-Nov-09 7:51

Xelalem

11-Nov-09 7:51

I am doing a speech recognition project for amharic ( Ethiopian) language. and i want to use sapi.Is there any interface used to extract the recognized phenomes; not the final recognized words...

tnx

modified on Wednesday, November 11, 2009 2:06 PM

Wireless Network

codefinder0911-Nov-09 7:43

codefinder09

11-Nov-09 7:43

Am working on a Software, Does anyone have an idea on Socket programming?.. i need to capture the wireless port of my laptop using C# code.. Pls help out Cheers!!

Re: Wireless Network

EliottA11-Nov-09 8:41

EliottA

11-Nov-09 8:41

First[^]
Second[^]
Third[^]
This one is just beyond your capability, isn't it?[^]

Check out the CodeProject forum Guidelines[^]
The original soapbox 1.0 is back![^]

split event handler or fire event as two events

Mr.Kode11-Nov-09 7:34

Mr.Kode

11-Nov-09 7:34

hello all...

i have logical trouble in my windows application

there is one eventHandler (Button1_click)
contains
two sqlcommands
the first sqlcommand insert into parent table (primary key table)
the second sqlcommand insert into references table

as expected the code generate sql exception because the referial constraint

the question is : how to solve this problem without adding new eventHandler and without modifying the tables relation?

best regards

Re: split event handler or fire event as two events

The Man from U.N.C.L.E.11-Nov-09 7:50

The Man from U.N.C.L.E.

11-Nov-09 7:50

You have to return the newly created ID's from the first insert and update your data before sending the second insert.
A better solution may be to parcel the whole data set up as xml, pass it into a stored procedure, then you can process the whole lot in one shot.

If you have knowledge, let others light their candles at it.
Margaret Fuller (1810 - 1850)
www.JacksonSoft.co.uk

Re: split event handler or fire event as two events

PIEBALDconsult11-Nov-09 9:29

PIEBALDconsult

11-Nov-09 9:29

The application shouldn't know or care about the details; all that should be handled in the Data Access Layer.

session & cookie

Arefeh Haghpnah11-Nov-09 7:09

Arefeh Haghpnah

11-Nov-09 7:09

Hi every Body. Big Grin | :-D

please tell me why do you we use cookie and session in web site?
thank you. Smile | :)

Re: session & cookie

The Man from U.N.C.L.E.11-Nov-09 7:29

The Man from U.N.C.L.E.

11-Nov-09 7:29

Cookies are used to persist data on the client so that it can be reused by your web page when it is next loaded. Session variable are similar, but on the server end. However as these are linked to a particular session ID they will go away after a bit when the client leaves your web site as they are stored in memory. However, cookies are saved to disk, and may be deleted by the end user.
Many sites do not use either, and don't need to.
It all depends what you want to do, and how you want your web app to work.

If you have knowledge, let others light their candles at it.
Margaret Fuller (1810 - 1850)
www.JacksonSoft.co.uk

Re: session & cookie

Arefeh Haghpnah12-Nov-09 21:25

Arefeh Haghpnah

12-Nov-09 21:25

thank you mr.

Restore main window from other process

Daniel Leykauf11-Nov-09 6:14

Daniel Leykauf

11-Nov-09 6:14

hi,

i have to restore a java window that is minimized in systray (process is: javaw.exe) and not shown in the taskbar.
i get the processid by process.getprocess but the mainwindowhandle is 0 if the window is minimized.
does anyone knows how i can get the main window handle? the window title is known.

thank you.

Re: Restore main window from other process

Paulo Zemek11-Nov-09 6:59

Paulo Zemek

11-Nov-09 6:59

I think the window is closed at this moment.
Can't you send a message to the process?

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