Opening a file more than 1Meg in size,plz...thanks

[mrdarkwarez]

How do i open a file more than 1meg in size and display its contents in a textbox??

much appreciated!!

[parksie]

A textbox can't display that much text. It's not the buffer, it's because it can't reference that high a number. You'd need to use a RichTextBox instead.

[Jop]

Be sure to...

...open the file in binary mode

http://www.vb-world.net/files/openstatement/

[Pentax]

...or using the command
Text1.Loadfile ("C:\largefile.txt")

I know this is (for some reason) not so popular among many programmers, but it works well for me.

[Jop]

nah...

The reason I told him to use Binary mode is because I heard it was alot faster than the other methods, ok, your's is easier but for large files I believe it's better to use Binary, and it sounds cool

[mrdarkwarez]

the textbox doesn't have a method call loadfile


i got an error message trying
Text1.Loadfile("C:\somelargefile.txt")

[Jop]

It's meant for the RichTextBox from Microsoft (Press CTRL + T) and add it to your project.

[mrdarkwarez]

one last things.. how much data can the rich text box hold...

in other words.. is there a limit on the file size i can display in the RTB?

Much Appreciated

I think its 2 or 3 gigabytes....

[Asaf_99]

I think that 2-3 GB is enough and nobody enters that much text.

every char on a textbox is one Byte, so imagine 1 MB is 10000000 Bytes, so it's like 10000000 characters. 1000 MB is 1000 MB. so it's 100000000000 characters. Times 3 it's 300000000000 characters, and that's a lot!

Summary:
1 Byte = 1 Char
1 MB = 10000000 Chars
1 GB = 10000000000 Chars
3 GB = 30000000000 Chars
30000000000 chars is a lot!!!

More posts for me!

[Pentax]

Originally posted by Jop
The reason I told him to use Binary mode is because I heard it was alot faster than the other methods

Well, I use RichTexBox and LoadFile, and it only took a few seconds to open a Mp3-file of 3800 kB.
So it's fast enough.
Pentax

[Jop]

Well, I use RichTexBox and LoadFile, and it only took a few seconds to open a Mp3-file of 3800 kB.
So it's fast enough.

Ohh it probably uses Binary mode too then

Sorry for the incovidence...

[Pentax]

it probably uses Binary mode too then

Well, that's of course possible.
I thought of Open file As Binary and all that stuff when you wrote open in binary mode.
What does incovidence mean?
Pentax

[Konan555]

You try loading a file byte by byte from a file nto RAM - It's very slow

[Jop]

Well, that's of course possible.
I thought of Open file As Binary and all that stuff when you wrote open in binary mode.
What does incovidence mean?
Pentax

I meant the LoadFile method, I mentioned Open File ... As Binary before. That was not what I meant mate

[DiGiTaIErRoR]

Originally posted by Asaf_99

Summary:
1 Byte = 1 Char
1 MB = 10000000 Chars
1 GB = 10000000000 Chars
3 GB = 30000000000 Chars
30000000000 chars is a lot!!!

You're wrong.
1 char = 8 bits
8 bits = 1 byte
1024 bytes = 1 KB
1,048,576 bytes = 1 MB(1024 KB)
1,073,741,824 bytes = 1 GB(1024 MB)
1,099,511,627,776 bytes = 1 TeraByte(TB, 1024 GB)
You get the picture I hope.
1024 / 8 = 128
multiples of two!
128 / 2 = 64
62 / 2 = 32
..16
..8
..4
..2
..1
If it were:
1000 / 8 = 125
125 / 2 = 62.5
you can't have 62.5 bits!

[Jop]

1 char = 8 bits
8 bits = 1 byte

So that'll make 1 Char = 1 byte Isn't that the same as Asaf_99 said?

[DiGiTaIErRoR]

Yes, 1 character is 1 byte, but 1000 bytes is not a kilobyte, it takes 1024 byte to make a kilobyte.

[Jop]

Yeah I overlooked that part in his post, sorry!

[parksie]

On type names:

4 bits = 1 nibble
2 nibbles = 1 byte

And here's the explanation for why a text-box can't load more than 64K:
The text box is one of the original Windows controls, and as such, is 16bit. This means it can only address a maximum of 2^16 bytes = 65536 bytes. The RichTextBox is 32bit, so it can use 2^32 bytes = 4294967296 bytes (4 gigs).