TextBox.Text

Question

2.50/5 (2 votes)

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how would i go about

getting the y position of a TextBox.Text

what i mean is as follows :

i have a textbox with scroller

messages where writen to it

// inside the textbox

hello how are u?

whats up?

bla bla bla...

// now in this position i would like to append a button control
// but i cant fingure out how to get the position to set the control in
// im looking for somthing sort of a line index type property

MIDL

rtb_msg.Controls.Add(x_panel);
x_panel.Location = new Point(rtb_send.Width / 2 -x_panel.Width / 2,??? <big>Height</big> ???);

Posted 16-Jan-11 7:05am

eran65

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Sergey Alexandrovich Kryukov · Accepted Answer · 2011-01-16T07:22:00

Solution 1

In principle, you could do it. You can reproduce exact same text up the the point you need and calculate text metrics.
This is where to start:
http://www.devsource.com/c/a/Languages/Text-Metrics-in-the-Net-Framework-Part-I/[^], but...

Don't do it!

This is a very, very bad idea. You're going to spend disproportionally long time to obtain very unreliable result. When you do it, you will have to struggle will your edit control going on top of your button when focused -- what event should be showing your button on top again? you will have to catch all events of scrolling the text (you mentioned scrolling yourself) or modification of the text, because any of those will mess up your layout.

Most likely, you will get the satisfactory behavior a little later than never :) .

Posted 16-Jan-11 7:22am

Sergey Alexandrovich Kryukov

Updated 16-Jan-11 8:54am

v6

Comments

Manfred Rudolf Bihy 16-Jan-11 14:37pm

I agree that doing this is a bad idea! 5+
(I think bold and maybe screaming it would have sufficed though, that red is burning my eyes :) )

Sergey Alexandrovich Kryukov 16-Jan-11 14:56pm

Whatever you say, Manfred :-) This is because the page CSS made it orange which I did not like as well... :-) -- thanks for your vote.

Manfred Rudolf Bihy 16-Jan-11 15:24pm

Ahhhh, that looks better already!

Espen Harlinn 16-Jan-11 15:42pm

5+ Sounded like an odd idea - if he wan't from the US I would have put it down to a linguistic problem :)

Sergey Alexandrovich Kryukov 16-Jan-11 16:27pm

As I say to Griff, the idea is odd, explanation is more or less clear.

OriginalGriff 16-Jan-11 15:47pm

Espen: He may not be from the US - that is the default when you register, and many people don't bother to change it!

Sergey Alexandrovich Kryukov 16-Jan-11 16:25pm

Agree, I would say I saw more severe communication problems with inquirers from US -- you explain why. But why worse? Because people who do not bother to change the field during registration are more likely to be less careful in communicators as well, due to the personalities.

As to this Question, the idea was clear to me immediately despite of the language. That the idea was weird (well, immature), no so much the explanation.

OriginalGriff 17-Jan-11 2:53am

SAKryukov: Why worse? Simple - people who do not have good English to start with are less likely to notice they need to change the location, and (in some cases) think it makes them "sound better" if they seem to be American rather than Indian or Korean (for example). Silly, I know, but there you go...

OriginalGriff · Accepted Answer · 2011-01-16T07:49:00

Solution 2

SAKryukov is right - you will expend a lot of effort for a very low reward.

Have you considered using a GridView or a DataGridView instead? If you have a text column and a button column, that would keep them together.

Posted 16-Jan-11 7:49am

OriginalGriff

Comments

Sergey Alexandrovich Kryukov 16-Jan-11 14:53pm

That's correct - a 5.
There could be several nice designs.

Espen Harlinn 16-Jan-11 15:43pm

5+ The improved solution :)