Strange string limit problem

[xyz]

I have a form that has a text box that allows multi-line text. When I
read an 80K file into it, only 64K characters are stored and
displayed. However, if I copy from the 80K file using the Windows
clipboard commands and then paste into the text box, all the
characters are stored and displayed.

This is how I read the file into the text box. It works fine until
the file exceeds 64K.

F = FreeFile
Open "tagtmp2.tm p" For Input As F
frmForm1!txtEdi t.Text = Input(LOF(F), F)
Close F

I have tried reading the file with LINE INPUT # into a string or
variant variable and then tried to assign the string to the text box
variable. E.g, txtEdit.Text = MyData and it also gets truncated.
This also happens concatenating character-by-character.

Since pasting into the text box works fine, I am assuming that I
should be able to store 2^32 characters into the txtEdit.Text string
as defined for VB for a varying string. The fact that only 2^16
characters are stored means that the text box is being interpreted as
a fixed string which has this smaller limit.

Does anybody know how to do this?

Thanks,
xyz

[Randy Birch]

Re: Strange string limit problem

While strings can be 2^32 characters, edit controls (text boxes) are limited
to 64k.

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbcon98/html/vbconcontrollimitations.asp

--

Randy Birch
MVP Visual Basic

http://www.mvps.org/vbnet/

Please respond only to the newsgroups so all can benefit.


"xyz" <xyz@mailinator .com> wrote in message
news:04mnqvsq6t qt3hdlla8nqk8np kshk77s91@4ax.c om...
:
: I have a form that has a text box that allows multi-line text. When I
: read an 80K file into it, only 64K characters are stored and
: displayed. However, if I copy from the 80K file using the Windows
: clipboard commands and then paste into the text box, all the
: characters are stored and displayed.
:
: This is how I read the file into the text box. It works fine until
: the file exceeds 64K.
:
: F = FreeFile
: Open "tagtmp2.tm p" For Input As F
: frmForm1!txtEdi t.Text = Input(LOF(F), F)
: Close F
:
: I have tried reading the file with LINE INPUT # into a string or
: variant variable and then tried to assign the string to the text box
: variable. E.g, txtEdit.Text = MyData and it also gets truncated.
: This also happens concatenating character-by-character.
:
: Since pasting into the text box works fine, I am assuming that I
: should be able to store 2^32 characters into the txtEdit.Text string
: as defined for VB for a varying string. The fact that only 2^16
: characters are stored means that the text box is being interpreted as
: a fixed string which has this smaller limit.
:
: Does anybody know how to do this?
:
: Thanks,
: xyz
:

[xyz]

Re: Strange string limit problem

I was able to go beyond the 64K limit by changing my controls.

Yes, it is true that the Text Box control has a 64K limit, but the
Rich Text Box control does not have this limit.

Replacing the control was relatively effortless. All I had to do was
define it as MultiLine with vertical scrollbar and to set the
RightMargin to the ScaleWidth on the Form_resize() procedure.

Thanks for the reference.

xyz.

=========
On Sat, 08 Nov 2003 00:15:00 GMT, "Randy Birch"
<rgb_removethis @mvps.org> wrote:
[color=blue]
>While strings can be 2^32 characters, edit controls (text boxes) are limited
>to 64k.
>
>http://msdn.microsoft.com/library/de...imitations.asp[/color]