That sounds nice. I will take a look at your suggestions and see how that could be done.

This was checking character by character:

String AllChars =...

I am doing a fuction where I want to check that a String contains only Letters between: "A-Z" and Numbers between: "0-9" and "_"

Instead of checking all one by one. Is there any approach to check...

My actual case is that I need to know how it is possible to pass a "string" from Form22 to Form4.

The test I could think of could be:

Lets say that Form22 has a textBox1 that has the string...

I am encounter a problem that I dont understand what is happening.

I use the Form application where I from Form4 will open Form22 like this wich works.


#pragma once
#include "stdafx.h"...

Thanks, mcriscolo, I think I could have found a solution also by adding Items and choosing "contextMenuStrip1" on the Form properties. I will check your method out also.
/j

Narue, I have to answer you well here because this is also not your first time you write this to me.
First I respect what you say, I dont want to be mean either. I begun programming in January this...

How is it possible to get a menu where you rightclick on the Form ?
I am not sure if this is the contextmenu. I tried to add this to the Form and also some
components to it but that did however not...

Found the solution here.

sr->BaseStream->Seek(Pos, System::IO::SeekOrigin::Begin);

When reading a txt file I am using .seekg to set the startpoint in the file to read from.
linepos has a value: 1002106
First I wonder what this value stands for excatly. As I have understand this...

Yes, this was the thread I was reading on but I missed it and as I saw it was as simple as this. I was imagining me something different.
It helped alot. Great !


for(int i = 0; i <...

In some way it is needed to refer to the previous vectordimension.
The problem is that I dont know how you refer to the previous dimension beginning and end and set this to some sort of an iterator...

What I try to find, is the equavilent to the vector ::iterator for the first code.
The first code iterates each Dimension from .begin() to the .end() and then continues
to next dimension for the 3...

I found out that "()" was needed. When iterating through the dimensions to show the "TextString" that was put into the List(Dimensions), only 1 MessageBox will appear.
As I have put "TextString" to...

When compiling the below code I will have a compileerror that says:
String3D : illegal use of this type as an expression
String2D : illegal use of this type as an expression
String1D : illegal use...

I think I will go with the loop then, I found out it was very fast also.
I did iterate a ListValue 200000000 times and it only took about 1 second.

/j

I understand. I have a wondering here. If you would use a for loop to iterate through a series of elements to replace a greater value to find the greatest value.
Will this be as fast as the...

yes you are right. I found the text inside. I should have looked there.
Thanks...

I am using a List where I wonder how it is possible to find the MaxValue searching trough
Value1[0] until Value1[3].
In this case it should return: 12
I have found a ::Max function but this will...

Yes it did look backwards:) , I didn´t think it did. I red about LastIndexOf here (http://msdn.microsoft.com/en-us/library/system.string.lastindexof.aspx)
I couldn´t find here where it described.. ...

Yes I know that MSDN exists but often the examples and info are not so clear there.
I did look up all members for the String^ before and also found LastIndexOf but as I understand this does not have...

I am using this in the std:: to check for the first occurance of " " backwards (rfind).
If I go managed .NET, I wonder if there is any simular method for this
using str->


...

Mitrmkar,

Thank you! Now it works...

When using pointers in .NET, you do use * and & to address pointers so the cavet ^ symbol should only meen a type as int and double I beleive like string for the std:: and then String^ for managed....

I have tried this approach to declare elements in the 2 Dimensions but with the same Error.
'Object reference not set to an instance of an object'


typedef List<String^>^ Vec1;
typedef...

I have also tried this approach to declare elements in the 2 Dimensions but with the same Error.


typedef List<String^>^ Vec1;
typedef List<Vec1> Vec2;

Vec2 List1;

for( int j = 0; j <...

Thanks Sci@Phy but if I run the program with the below code, I will still have the same Errormessage:) It seems that elements is Added but wonder what is being wrong.

'Object reference not set to...

I have come up with this code where I am creating a 2D list.
Then within a loop I think I am declaring 1000 elements to each dimension wich in the end
will have List[1000][1000].
However when I...

Thanks, a list it is but this declaration of a 2D vector in the previous post is this really for the System::IO namespace.

I know how to declare a 2D vector in the std:: namespace like this wich...

I know how to declare a 1D vector like below but how do you declare a 2D vector ?


List<String^>^ Vec1 = gcnew List<String^>();

Found a solutions to 'Pos' Positions for the ',' to parse out the values like this. Suppose this could be a solution.


//Create an instance of StreamReader to read from a file.
StreamReader^ sr...

When reading a file I am trying to split the line and put the comma delimited values into vectors.
It should be something I am doing wrong with the splitting of the line. It seems that ->Split only...

Ok, I thought something like that too. I will use vectors to store the values I read with the delimiter. I am guessing out some code but are not sure if I am on the right track to do as I do.
What I...

As I red, Peek() >= 0 will check if the eof file is reached like this.
However I dont really understand how it works when the line, "Line" will be delimited by the "Delimiter".
What comes out of...

I am using StreamReader to read a File. With the code below I am able to read a whole line.
What I wonder is how it is possible to read a comma delimited file like these lines.
How will I put the...

You are completely right about that. I have a large amout of code that I use after I red the values from the textfile. I mainly use the std:: namespace to substring, convert from text-number-text,...

(deleted post)

Yes you are right. When changing that, the test went down from 35 to 20 seconds.
Great to think about these details !

I am looking for fast conversions. I found out that converting with atof is much more faster than using the stringstream like the below tests.

What I look for now is a fast way to convert from...

:) Thank you a lot !, I will check this code out carefully to see what I can do and understand !

>> tokenize the buffer line by line, and then use one line however u want

I must be honest to say that I only know in words how to do this. I have never tokinized something. I have red...