C# Discussion Boards - CodeProject

Re: Merge MenuStrip in MDI form [modified]

Eddy Vluggen5-Apr-09 5:59

5-Apr-09 5:59

Does it help if you alter the MergeOption to Append? Or could it be that the constructor isn't creating the mnuChild-component?

I are troll Smile | :)

modified on Sunday, April 5, 2009 12:07 PM

Re: Merge MenuStrip in MDI form

baranils5-Apr-09 6:21

baranils

5-Apr-09 6:21

Thank you

No, it does not change anything

BUT I have the solution
It is necesary to set the head item (File in this case) to MatchOnly
Then set each items in the child menu to the needed value (Insert, append...)

A little bit tedious is the need to set the Exit item in the Main menu at the end

To do that it is necessary to sell all items in the child menu to Insert with the proper index

Extract the in-betweens...

jas0n234-Apr-09 23:52

jas0n23

4-Apr-09 23:52

Hey All!

I've been readin' up on Regular Expressions alot lately because I need to Extract words inbetween HTML tags for example I need to extract the words 'extract this!':

<title>Extract this!</title>

and also:

<a href="http://www.ilikethissite.com/">Extract this URL</a>

I have followed many examples and read MSDN and I just can't get it to work. Can anyone please shed some light on this matter? Thanks in advance

Jay.

j.t.

Re: Extract the in-betweens...

Christian Graus4-Apr-09 23:59

Christian Graus

4-Apr-09 23:59

Use regex grouping to match the bits you want to keep and build a new string, or to match the bits you want to remove, and then remove them.

Christian Graus

Driven to the arms of OSX by Vista.

"I am new to programming world. I have been learning c# for about past four weeks. I am quite acquainted with the fundamentals of c#. Now I have to work on a project which converts given flat files to XML using the XML serialization method" - SK64 ( but the forums have stuff like this posted every day )

Re: Extract the in-betweens...

jas0n235-Apr-09 0:29

jas0n23

5-Apr-09 0:29

Yay! Thanks lots Christian Graus.

j.t.

Re: Extract the in-betweens...

12Code5-Apr-09 1:08

12Code

5-Apr-09 1:08

jay_t55 wrote:
need to extract the words 'extract this!':

<title>Extract this!

Here you go..

string str = "<title>Extract this!</title>";
Regex RE = new Regex(@"(<title> )(\w|\S|\s )+(</title> )");
MatchCollection MC = RE.Matches(str);

if (MC.Count == 0) MessageBox.Show("No match");
foreach (Match M in MC)
{
    string trimStr = "</title>";
    MessageBox.Show(M.ToString().Trim(trimStr.ToCharArray()));
}

8.Kelvin()
{   
  while (!(the machine can program itself))
     Wont_stop_coding = true;
}

Re: Extract the in-betweens...

jas0n235-Apr-09 2:06

jas0n23

5-Apr-09 2:06

Wow! Thank you so much 8Kelvin, very much appreciated!! Big Grin | :-D

Jay.

j.t.

Re: Extract the in-betweens...

#realJSOP5-Apr-09 3:01

#realJSOP

5-Apr-09 3:01

What you want is an HTML parser (google is your friend). Don't mess around with regex because you'll spend a lot of time trying to figure it out. Believe me - downloading a parser will be much faster.

"Why don't you tie a kerosene-soaked rag around your ankles so the ants won't climb up and eat your candy ass..." - Dale Earnhardt, 1997
-----
"...the staggering layers of obscenity in your statement make it a work of art on so many levels." - Jason Jystad, 10/26/2001

Re: Extract the in-betweens...

PIEBALDconsult5-Apr-09 4:16

PIEBALDconsult

5-Apr-09 4:16

Hear hear! This is a wheel best not reinvented.

Get string size in bytes

Harvey Saayman4-Apr-09 23:36

Harvey Saayman

4-Apr-09 23:36

Hey guys

I need to get the size of a string in bytes, how do i do that Confused | :confused:

Harvey Saayman - South Africa
Software Developer
.Net, C#, SQL
you.suck = (you.Passion != Programming & you.Occupation == jobTitles.Programmer)
1000100 1101111 1100101 1110011 100000 1110100 1101000 1101001 1110011 100000 1101101 1100101 1100001 1101110 100000 1101001 1101101 100000 1100001 100000 1100111 1100101 1100101 1101011 111111

Re: Get string size in bytes

Luc Pattyn4-Apr-09 23:39

Luc Pattyn

4-Apr-09 23:39

Harvey Saayman wrote:
the size of a string in bytes

what size? what is your purpose?

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

- before you ask a question here, search CodeProject, then Google
- the quality and detail of your question reflects on the effectiveness of the help you are likely to get
- use the code block button (PRE tags) to preserve formatting when showing multi-line code snippets

Re: Get string size in bytes

Harvey Saayman5-Apr-09 2:28

Harvey Saayman

5-Apr-09 2:28

Im trying to send a request to a IM(MXit) server, to protocol documentation states that the length of the request must be pre-pended to the request...

Re: Get string size in bytes

Luc Pattyn5-Apr-09 2:44

Luc Pattyn

5-Apr-09 2:44

Hi,

if the API you are using expects a Unicode string, then I would expect the length is the number of characters, not bytes.

in the more likely case the API expects a byte array, you would need an Encoding (maybe Encoding.ASCII, Encoding.UTF8, or new Encoding(1252)) and use its GetBytes() method. In such case the length would be the length of the byte[].

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

Re: Get string size in bytes

Eslam Afifi4-Apr-09 23:56

Eslam Afifi

4-Apr-09 23:56

You mean the size of the string in a specific encoding? for example,

Encoding.UTF8.GetByteCount(theString);

Or the size of a string object in memory? which depends on implementing platform[^]

Eslam Afifi

Getting the type from a string, any magic for this in C#?

ioctl514-Apr-09 22:30

ioctl51

4-Apr-09 22:30

If i have a string, lets say the string is "System.Float".

Is there anyway i can get the type from that string? (ie a float).

And do something like this:

Float f = new GetMagicTypes<"System.Float">();

Re: Getting the type from a string, any magic for this in C#?

Steve Echols4-Apr-09 23:15

Steve Echols

4-Apr-09 23:15

Huh?

You can get the type using: Type.GetType("System.Single"), etc, but you can't use that as a template argument.

And your example is going to create a GetMagicTypes object, not a float.

GetMagicTypes<float> f = new GetMagicTypes<float>();

What are you trying to accomplish?

- S
50 cups of coffee and you know it's on!
A post a day, keeps the white coats away!

Re: Getting the type from a string, any magic for this in C#?

ioctl514-Apr-09 23:26

ioctl51

4-Apr-09 23:26

What im doing is that im parsing the object type from xml, so i need a way to allocate an object of the type in the string.

Something like this then maybe:

Float f = new<type.gettype("system.float")>();

Ofcourse i could do this:

if("System.Float" == type)
Float f = new System.Float;
elseif("System.Boolean" == type)
Boolean b = new System.Boolean;

But that is an unnessecary thing if c# has support for string<->type conversion

Re: Getting the type from a string, any magic for this in C#?

Steve Echols4-Apr-09 23:46

Steve Echols

4-Apr-09 23:46

Well...you can't know at compile time what you're going to get at runtime, so you can't strongly type it.

If you want the xml value to be a float, then you'll have to coerce it.

float f;
float.TryParse(your xml value, out f);

Same with all the other types, int, bool, etc.

- S
50 cups of coffee and you know it's on!
A post a day, keeps the white coats away!

Re: Getting the type from a string, any magic for this in C#?

Luc Pattyn4-Apr-09 23:34

Luc Pattyn

4-Apr-09 23:34

Hi,

have a look at the Activator class and its CreateInstance method.

Smile | :)

Luc Pattyn [Forum Guidelines] [My Articles]

Re: Getting the type from a string, any magic for this in C#?

ioctl514-Apr-09 23:38

ioctl51

4-Apr-09 23:38

Awesome! many thanks, just what i was looking for

Re: Getting the type from a string, any magic for this in C#?

Steve Echols4-Apr-09 23:59

Steve Echols

4-Apr-09 23:59

This will still just get you an object, so if you want to do anything with it, you'll have to cast it to the type you want, which might be fine for what your doing?

- S
50 cups of coffee and you know it's on!
A post a day, keeps the white coats away!

Re: Getting the type from a string, any magic for this in C#?

PIEBALDconsult5-Apr-09 4:29

PIEBALDconsult

5-Apr-09 4:29

A) This may be a good place to use var.

B) Accessing Reflection can be time-consuming, so I prefer to cache the results.

C) Typically, in situations like this, I use a Dictionary. Here I might suggest a Dictionary<string,System.Reflection.ConstructorInfo>. Populate it with the expected/allowed types your application should support. Then something like:

var x = dic [ somestring ].Invoke() ;

would invoke the constructor and return an instance of whatever type was requested (or fail). However, it's Sunday morning and I'm still on my first cup of coffee, so I don't expect the above syntax to be correct (I'm pretty sure it isn't, but it should communicate the concept well enough).

D) If you want to support types that aren't known at compile time, you will need to learn how to dynamically load assemblies. There are several articles on that here.