In VB.NET, I want to find out how many whole lines of text I could fit inside a multiline textbox. What is the best way to do this?
Considering that the WPF TextBox controls don't have a Multiline property, this is presumably for a WinForms application.
To determine how much text you can fit in a given size (the dimensions of the TextBox control) I would suggest using the TextRenderer.MeasureText method to determine the height of a single character. Divide the height of the TextBox control by the height of the character to get the number of lines visible at one time.
Keep in mind that the measurements of characters may potentially differ in so much that the measurement of an asterisk (*) may be very small, whereas the measurement of an octothorpe (#) may be much larger. The MSDN page seems to state however, that this is a non-issue as long as you use MeasureText(String, Font) and not any of the other overloads.
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In the design window, I have my controls formatted one way, but when I run my program, the formatting changes. The window looks larger and the digit button is no longer aligned. I have no clue how to fix this. I am taking an intro level course, so I can't fix this with code. When I wrote my first couple of programs, I didn't have an issue with resizing, but for the last two or three, they never hold their size.
My Program
the above issue please check the anchor tag of each control it should be Top left.
To hold the control position
1 Add panel control to form then dock it to form
2 Add the other
control it will hold the control position as well
I´m using a form with 11 individual labels, which each one is responsible to a specific letter/symbol. It´s necessary to create a effect similar to decoding/decrypting a sentence.
The form inits as: XcT25vCh##*&
and after some character-change effects it ends with: Normal Text
Everything is functioning perfectly, but when I reduce the space among the characters (to put them really in a narrow space), the subsequent character (label) overrides the previous one, make it hidden.
In other words, if I keep them in a fixed space (even being a justified font as Arial), everything is OK. But if I try to reduce the horizontal space among them, the right label overrides the previous one.
All labels are marked as TRANSPARENT BACKGROUND and it has no positive effect.
I tried also to set Autosize ON and OFF, again, without any positive effect.
How can I simulate a decrypting string without have to keep all characters with a fixed (and large) horizontal space among them?
Note that the problem is not related to the label itself (the character width), but to the fact of each one is capping the previous one.
Thank you.
Microsoft Access seems to limit the form width. This limit is ->very-< small...
Is there any way to bypass this limit?
I try to create a dynamic datasheet view which allows background coloring of rows, onClick events in specific fields, Locking of specific fields, logging of changes etc. I'm using a continous form, that dynamically defines field width, events, sorting, color and position to create this perfekt table, which works really well.
The only limitation for this I've found is the max form width, wich seems to be a simple integer, 32.767 . The size of this seems to be ->much<- smaller than a pixel (I've heard it's 567 per cm.), and so it limits at about 1.2 screen witdh of a HD screen. Thats WAY to small...
I'm not sure what you mean by 32.767 being smaller than a pixel? The max width for a form is 22 inches which is 31680 twips. That is ~1.2x the with of my monitor; you're right. But that seems pretty darn wide. Certainly not very small.
If you need wider than that you can use datasheet view for data entry, or multiple rows of controls in your continuous form, or multiple screens (i.e. tab ontrol, let the users click 'Next' to fill out more data).
This is a logical width to keep you from shooting your self in the foot. People don't like to scroll to the side a lot.
So I've created a graphing calculator style program to display vector lines and their resultant after addition.
My question is: for lines of greater size than the window size I have designated for display, how can I "zoom" in or out of that window with in the page. I have tried doubling the length of each line point, but to no avail.
Never seen a zoom on a single control. I supose you could just change the font size (on the MouseWheel event) of the textbox and that would give the same effect as zooming. If you want it keyboard based, you could use the key events and look for something like [ctrl]+ or [ctrl]-
Having VB textbox control with fixed width. How to measure or set font size of the control for given string length ? The string/text should fit into the textbox completly.
You can use Graphics.MeasureString to measure a string drawn with a specified font. For example, cycle through several font sizes and pick one that fits best into your textbox width.
Another way, which supposedly works better with non-ASCII characters, is TextRenderer.MeasureText. Suggested by this answer.