Visual Basic

Read file data when opening from...

3-Apr-06 18:57

Throw it in the bin and use a datagrid Smile | :)

Christian Graus - Microsoft MVP - C++

Taen_Karth3-Apr-06 15:05

3-Apr-06 15:05

I have developed a text editing software and I was wondering how to accomplish the following.

I have set all .rtf files to open with my program by default in Windows

I would like to know how to read the data from the .rtf file while my program opens

Thanks,

Taen Karth

Christian Graus3-Apr-06 15:09

3-Apr-06 15:09

You'll need to read this:

http://www.google.com.au/search?hl=en&q=rtf+file+format&meta=[^]

and write some code that reads that format.

Christian Graus - Microsoft MVP - C++

Taen_Karth3-Apr-06 15:27

3-Apr-06 15:27

I don't think I quite explained it well enough. I am using a RichtextBox control and VB.NET 2005.

I can read a .rtf fle into the richtextbox control using one simple command (.loadfile).

There has to be a more straight forward way to accomplish this.

Thanks,

Taen Karth

Christian Graus3-Apr-06 15:28

3-Apr-06 15:28

There's a single command which loads the RTF and you want something more simple ? I don't understand ?

Christian Graus - Microsoft MVP - C++

Taen_Karth3-Apr-06 15:33

3-Apr-06 15:33

Obviously...

When the programs opens it needs to load the file that called it as the default app to open in...

My questions is how do you capture the file that opened it.
When windows sets a program as default editor for a file type...when that file type is clicked and it opens the program how does the program know what called it?

Thanks,

Taen Karth

Christian Graus3-Apr-06 15:36

3-Apr-06 15:36

I'm not sure it does. Or do you mean how does it know what file was being passed to it ? I'd say the filename is passed as a parameter.

Christian Graus - Microsoft MVP - C++

Taen_Karth3-Apr-06 15:39

3-Apr-06 15:39

Yeah that is exactly what I mean. How does it discern the parameter and file that was passed to it and how do you code using it. I assume that the parameter it passes is the file system path to the file...which would enable me to use the .loadfile element of the richtextbox control to load the data.

Just not sure how to capture the parameter...

Thanks,

Taen Karth

Christian Graus3-Apr-06 15:42

3-Apr-06 15:42

Ah, OK. I still can't get that from the wording of the original question Smile | :)

Your program entry point is a static void main method. That method is passed an array of arguments. You can check that array, the first argument passed in there is going to be the file path, so you can capture it there, and use it accordingly.

Christian Graus - Microsoft MVP - C++

Taen_Karth3-Apr-06 15:52

3-Apr-06 15:52

hehe...sorry for the confusion but I, for the life of me, could not understand the logic of what was supposed to be happening. Now I understand it in theory and I am still too green to understand completely what you are telling me above.

I have no Static Void method in my project. If this is just an invisible method? WTF | :WTF:

that is assumed, how do I capture it?

Thanks,

Taen Karth

Christian Graus3-Apr-06 16:01

3-Apr-06 16:01

The syntax may be different for VB.

Man, I hate VB. It seems this is another thing that VB does by 'magic', instead of via code.

http://www.devx.com/vb2themax/Tip/18748[^]

It looks like you have to add the code to make things work in a more 'normal' way, via a main method.

Christian Graus - Microsoft MVP - C++

Taen_Karth3-Apr-06 16:06

3-Apr-06 16:06

AHA! That's the stuff! I remember reading that before now.

Thanks for bearing with me... D'Oh! | :doh:

and have a nice week! Big Grin | :-D

Thanks,

Taen Karth

Christian Graus3-Apr-06 16:09

3-Apr-06 16:09

My pleasure - glad to help.

Christian Graus - Microsoft MVP - C++

Help with array code

Solid Snake3-Apr-06 14:57

Solid Snake

3-Apr-06 14:57

Hello everyone. i posted before abot making a sudodu game generator and was given the answer that i need an array for that.

i would really apriciate if i could get some help with coding this array since this litte program is due Week 16 and my teacher is to senile to help me...

also i need to shed some light in how to generate blanks in a randomize code with only numbers.
i am not posting my code here because it is very long... but i could send it to people who would like to help me.

Thanks in advance

~Snake~

Christian Graus3-Apr-06 15:08

3-Apr-06 15:08

An array is created like this:

dim ints as int() = new int(20)

http://www.google.com.au/search?hl=en&q=vb.net+array&meta=[^]

lots of links there

Your only real option is to set a 'magic' number to equal nothing, -1 and 0 are commonly used for this.

Christian Graus - Microsoft MVP - C++

Solid Snake4-Apr-06 3:49

Solid Snake

4-Apr-06 3:49

that link would be good if it was for VB6 though, but that array creation you vill have to explain some more

Christian Graus4-Apr-06 13:45

4-Apr-06 13:45

VB6 is no longer supported, people will assume you're asking about VB.NET unless you say otherwise. VB6 is useless, I'd have to ask why your school teaches it. VB.NET 2005 Express is free, they should be using that, if you must learn VB.

Christian Graus - Microsoft MVP - C++

FrankyT4-Apr-06 13:57

FrankyT

4-Apr-06 13:57

ok here:

Dim i() As Integer 'create a array of ints with 0 length
For j As Integer = 0 To 1000000000
ReDim Preserve i(j) ' redefine the array in memory, keeping the existing values
i(j) = j
Next
return i
advice:
1) everything is reference in VB (except integral primatives like ints )
2) arrays are declared to have a lengthh adn don't like it when their boundries are broken
3) mixing .count and .length lead to trying to remember which is "0 based" and which is "1 based"
4) if you get an indexOutOfRange violation check your iterators
5) redim is your friend
6) collections are often a better choice
7) avoid mixing collections and arrays (collections are 1 based and always have >= 1 member)
8) use for each when ever applicable (another reason to avoid mixing arrays with collections)

this really should all be in your textbook. Look it up...

good luck

hey...slang is the vernacular for the vernacular...wow

Solid Snake5-Apr-06 6:56

Solid Snake

5-Apr-06 6:56

thank you, i will try some of this code ASAP ^^
Big Grin | :-D

and yes i agree, VB6 is old but i guess its all about the license stuff >_> Dead | X|

vb to vb.net

machman13-Apr-06 13:08

machman1

3-Apr-06 13:08

I have the source code of a vb program. What is the best way to convert or rewrite the code into vb.net?

Re: vb to vb.net

Christian Graus3-Apr-06 15:06