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QUESTION
I tried to have a console app that takes 5 numbers and fills an array with it but The issue with this code is that, it only accepts 4 numbers and fills the last index with null, how could I fix that?
...ANSWER
Answered 2021-Jun-08 at 14:09In the code string[] numbers = new string[4]; means numbers array size is 4 and array starts with 0 index. Hence last index is not null. Change the string[4] to string[5]. Hope this will solve your problem.
QUESTION
I've been attempting to format this string for a text box as it's getting typed in. The output result that I would like is as follows:
user presses '0': output:'0 / / '
user presses '6': output:'06/ / '
user presses '2': output:'06/2 / '
etc.
What I currently have:
...ANSWER
Answered 2021-Jun-07 at 17:45You can use the MaskedTextbox with the input mask 00/00/0000
.
Edit you can also set the ValidatingType
property to DateTime
type.
QUESTION
I've created a WPF with a TextBox inside it. I allow the user to enter only numbers, backspace, and minus sign. I would like to allow the user to write minus sign only in the first position, before all the rest numbers. I've tried the following code:
...ANSWER
Answered 2021-May-07 at 12:29This may help: TextBox.SelectStart and TextBox.SelectLength
This will tell you where the caret is within the textbox. You can use it to check you are at the start of the text box
QUESTION
writing a windows Form program that takes user input, and changes the color of the label accordingly. and when the program reaches 2 words it repeats itself. it works fine until it reaches the second word, where there I added a method to restart from the beginning after "validating and changing color", I can see the program validated the word, but when it comes to change the color, it just skips that part and starts from the beginning.
...ANSWER
Answered 2021-Apr-28 at 20:01There needs to be a delay between setting the color to green/red and resetting all label colors to black. Here is a way to do it, however it may not be the best way. I first create a background worker and hook into the DoWork and RunWorkerCompleted events. Inside DoWork we create the delay using the Thread Sleep. Inside of RunWorkerCompleted we reset the label colors and call form load.
QUESTION
So I'm building this RPG turn based game for a class. I'm not trying to get my homework done for me, but this one problem is REALLY spinning me out, I've been at this for like 3 hours and I can't figure out how to fix this problem.
Essentially, I have an update method that controls whos turn it is (either the player or the computer)
...ANSWER
Answered 2021-Apr-21 at 05:28 void PlayerTurn()
{
// ...
while (Attacker == null)
{
// ...
if (k.KeyChar == '5') {
HealAlly();
break;
}
}
// ...code that depends on Attacker...
}
QUESTION
I'm trying to make an army list builder for a miniatures strategy game.
I'd like to know the correct method to read a SQL table cell value and to put it for each unit into a ComboBox.text field, but only into the field.
The ComBoBox collection items should not be modified (I need them to remain as it is). I just want the ComboBox.text value to be modified with the red framed value, and for each unit
For the record, currently, I read the others table informations and load them into the others ComboBoxes this way :
...ANSWER
Answered 2021-Apr-06 at 14:45Function for retrieving your data via sql query
QUESTION
I must capitalize first letter of every word but with keypress event using C#. Right now every letter in the textbox gets capitalized, I added the code I use. I cant figure out how to capitalize just the first letter, or what am I doing wrong. Can you help me?
...ANSWER
Answered 2021-Mar-29 at 18:59You will need to keep track of previous key presses if you must go this route:
QUESTION
I am new to C#, but I am trying to create a console application in which the user should be able to press a key in order to adjust one of the bools. Here is the code for detecting user input:
...ANSWER
Answered 2021-Mar-24 at 22:54The method that you're looking for is ConsoleKeyInfo.KeyChar. You can compare chars by wrapping the letter in single quotes (e.g. 'a'
)
QUESTION
Fixed, but now it automatically presses enter when it gets to the Main();
thing and I can't actually input anything in time. Anyone know what's wrong?
ANSWER
Answered 2021-Mar-04 at 12:30I've reworked your code into something that is more C#-like :-) - find this below.
Highlights:
- You use
int.TryParse()
correctly, but do the conversion again inside the true code block, usingint.Parse()
. - No need to call
System.Environment.Exit(1);
to terminate the program, just let it end. - The call
main()
is actually a recursive call - where a method (function) calls it self. Usable sometimes, but i often leads to a StackOverflow exception. In this case, you get some strange behaviour...
QUESTION
I go far back to make clear the context. First, I noticed today that if there are several controls on the form, you cannot use the arrow keys because the controls (e.g. ComboBox, textbox) take the cursor and focus. Therefore, I created a second form ("SteuerForm" (Steering Form)). There are no controls on this. I also found out that you can only get the arrow keys with the KeyDown
event. The KeyDown
event is disadvantageous when it comes to certain characters: "Shiftkey" and "Oem7" are output instead of the specific letter (e.g. Ä
). That's why I actually wanted to use KeyPress
. Eventually, I wrote a class ("Class_Key"). It contains a list(Of string)
with certain key names that I must have.
Now I want the Private Sub new_message()
in Form1 to be called when the string letzte_Taste
(last_key
) changes.
Edit: I want some event in the Class_Key Class to fire a method (new_message) in the main form. How can I do that? The event is supposed to be fired when the string letzte_Taste changes from one (eg "Up"
) to another (eg "Down"
).
SteuerForm.vb
...ANSWER
Answered 2021-Feb-23 at 22:56I did it! This is my solution.
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