C# Discussion Boards - CodeProject

Re: Keys shortcuts problem

Tavbi3-Nov-06 1:28

Tavbi

3-Nov-06 1:28

Hi,

I have just one more question. Can I check if ALT+F1 pressed?

Thanks,

Jure

Re: Keys shortcuts problem

Martin#7-Nov-06 1:32

Martin#

7-Nov-06 1:32

Hello,

Yes you can!

if (e.Alt && e.KeyCode == Keys.F1)

Hope it's not too late, but I didn't got your post.

All the best,

Martin

Re: Keys shortcuts problem

Tavbi8-Nov-06 4:15

Tavbi

8-Nov-06 4:15

Thanks, it's not too late.

Thanks again,
Jure

Linq - Problems with conversion [modified]

Storme2-Nov-06 1:05

Storme

2-Nov-06 1:05

Excuse me for being brief, but it is self explanatory.

So I make a query with linQ, and then try to make a 2nd query on the previous results, but there i get an error.

            List<clsHotel> q = from d in dbGet.Hotels()  // dbGet.Hotels() returns List<clsHotel><br />
                    select d;<br />
<br />
            if (chkHalfpension.Checked) {<br />
                List<clsHotel> z = from x in q     // Error occures here on q<br />
                                            where x.Naam == "Bon jour"   <br />
                                            select x;<br />
            }

It returns the following error on that line:

Error 1 Cannot implicitly convert type 'System.Collections.Generic.IEnumerable<hotelmanager.data.clshotel>' to 'System.Collections.Generic.List<hotelmanager.data.clshotel>'. An explicit conversion exists (are you missing a cast?)

If anyone could please help.

Thanks in advance !

-- Edit --

The weird thing is:

This code also doesnt works:

List<clsHotel> q = from d in dbGet.Hotels()  // dbGet.Hotels() returns List<clsHotel><br />
                    select d;<br />
<br />
                List<clsHotel> z = from vx in dbGet.Hotels()   // also gives error here<br />
                                   select vx;

It throws the same error, but the code is the same :s
Guess it's an bug in c#3.0 ?

-- modified at 8:18 Thursday 2nd November, 2006

Re: Linq - Problems with conversion

ed^nrgc2-Nov-06 6:27

ed^nrgc

2-Nov-06 6:27

instead of list, have you tried var?

Re: Linq - Problems with conversion

Storme2-Nov-06 6:52

Storme

2-Nov-06 6:52

Yes, keeps saying the same error.

I guess you can't do 2 of that select things in the same function, wich is to bad Frown | :(

Re: Linq - Problems with conversion

ed^nrgc2-Nov-06 6:55

ed^nrgc

2-Nov-06 6:55

Have you tried IEnumerable < string > < == remove spaces

Re: Linq - Problems with conversion

Storme2-Nov-06 7:05

Storme

2-Nov-06 7:05

This works ! (except i used clsHotel class, not string)

Thanks alot edboe ! Big Grin | :-D

Re: Linq - Problems with conversion

ed^nrgc2-Nov-06 6:59

ed^nrgc

2-Nov-06 6:59

Another option would be to create each search in a separate function/method.

Changing a Color on the fly

Gareth H2-Nov-06 0:53

Gareth H

2-Nov-06 0:53

What i want to be able to do is change a Color that i get from a method to a lighter version. E.g: If its red, make it a lighter shade of red.

Any ideas how i'd do this?

Regards,
Gareth.

Re: Changing a Color on the fly

Martin#2-Nov-06 1:06

Martin#

2-Nov-06 1:06

Hello,

I think this should do it.

Color _lightcolor = ControlPaint.Light(Color.Red);

Hope that helped you.

All the best,

Martin

Using a struct passed from a C# web service at the client

jvink2-Nov-06 0:26

jvink

2-Nov-06 0:26

Hi
If I output the result of a web-method as a struct defined in my web-service, how do I then use that outputted result (i.e. the struct and its properties, methods, etc.) in the calling client application?

Here is the struct:

public struct DataType_Shop_SKU
{
public Int32 SKUID;
public String Name;
public String WebDescription;
}

Here's the web-method:
public DataType_Shop_SKU GetSKU(int SKUID)
{
clsShop Shop = new clsShop();
try
{
MyDataTypeSKU = Shop.GetSKUBySKUID(SKUID); // populates the struct
}

Thank you for your help.

Re: Using a struct passed from a C# web service at the client

luckykhalid2-Nov-06 1:20

luckykhalid

2-Nov-06 1:20

Make a dll of the struct and refer it to both client and the server.

Regards
Khalid

Directory from File Name

Jon Hulatt2-Nov-06 0:22

Jon Hulatt

2-Nov-06 0:22

Hi All,

Given a string filename, eg:

string filename = @"c:\my folder\my second folder\myfile.txt";

Is there a neat-o way of getting the directory that the file is in, other than using string manipulation or regular expressions?

I'd expected that there would be a File class with a (read-only) property of Directory, such that one could get the directory a bit like this:-

string directory = new File(@"c:\my folder\my second folder\myfile.txt").Directory;

but I cannot find anything like that.

Thanks

Jon

using System.Beer;

Re: Directory from File Name

J4amieC2-Nov-06 0:24

J4amieC

2-Nov-06 0:24

Take a look at the System.IO.Path class which has a static method to do exactly what you want.

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How to get answers to your questions[^]

Re: Directory from File Name

Jon Hulatt2-Nov-06 0:28

Jon Hulatt

2-Nov-06 0:28

Excellent! Thanks Jamie, perfect.

using System.Beer;

Re: Directory from File Name

Guffa2-Nov-06 0:27

Guffa

2-Nov-06 0:27

Have a look at the System.IO.Path class.

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b { font-weight: normal; }

thinning of a image

s4_sabahatf2-Nov-06 0:18

s4_sabahatf

2-Nov-06 0:18

hi if some one knows the code for thinning of a image?

Re: thinning of a image

ed^nrgc2-Nov-06 6:29

ed^nrgc

2-Nov-06 6:29

define thinning

Re: thinning of a image

s4_sabahatf3-Nov-06 21:13

s4_sabahatf

3-Nov-06 21:13

reducing the pixels of a image into a single pixel

Re: thinning of a image

ed^nrgc6-Nov-06 2:39

ed^nrgc

6-Nov-06 2:39

s4_sabahatf wrote:
reducing the pixels of a image into a single pixel

You're kidding, right?

Re: thinning of a image

Member 211411428-Dec-10 3:28

Member 2114114

28-Dec-10 3:28

No, its no kidding, i see some sample image like this one
http://www.cs.ru.nl/~ths/rt2/col/h9/thinning.GIF[^]

checkbox control with a cross

Mridang Agarwalla2-Nov-06 0:17

Mridang Agarwalla

2-Nov-06 0:17

Hey guys,
A few days back i was using some application and I noticed a control which i had never seen before - it looked a like regular checkbox control but it had a tick mode and a cross mode. When in the cross mode a red color X would appear in it? I have only seen checkboxes that can be ticked or unticked but not of this kind. Ufortunately i forgot the name of the software In which i saw this! Anyone know where i could get a similar control for my C# app?

What is Callback and how to use it ?

hdv2122-Nov-06 0:13

hdv212

2-Nov-06 0:13

hi What is Callback and how to use it ?
and how to use IAsuncResult for Update UserInterface(ProgressBar) to show Completing operation ?
thanks .

Re: What is Callback and how to use it ?

ed^nrgc2-Nov-06 6:31

ed^nrgc

2-Nov-06 6:31

callback would be a method that is called when the operation completes.

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