user-input

Why my textbox TextChanged event gets fired after I enter “only” one character in my text box?

由 最后都变了- 提交于 2019-12-01 06:05:26
private void NameVal_TextChanged(object sender, EventArgs e) { String text = NameVal.Text; } As soon as I enter the first letter of my Name this program gets executed . How do I make the program wait until I finish entering the whole string for the field (such as Name ex: James) is entered. If you want to determine when the user has finished typing, you can catch the leave event instead - this is fired when the focus is lost on that text box - ie the user clicks outside of the textbox: private void NameVal_Leave(object sender, EventArgs e) { //Do your stuff String text = NameVal.Text; } If you

How to restrict user input character length of HTML5 input type=“number”?

由 牧云@^-^@ 提交于 2019-12-01 05:56:31
How do I restrict user input to a given length in an HTML5 input[type=number] textbox? the answers to How can I limit possible inputs in a HTML5 "number" element? do not handle illegal inputs <input class="quantity" type="number" min="0" max="99999" maxlength="5" /> $("quantity").keyup(function(){ var $field = $(this); if ($field.val().length > Number($field.attr("maxlength"))) { var value = $field.val().slice(0, 5); $field.val(value); } }); I know the maxlength attribute is not supported, but I use it to obtain the given length. The above code works fine in firefox, but in chrome and safari

How to handle both integer and string from raw_input?

由 て烟熏妆下的殇ゞ 提交于 2019-12-01 05:46:03
问题 Still trying to understand python. It is so different than php. I set the choice to integer, the problem is on my menu I need to use letters as well. How can I use integer and string together? Why can I not set to string than integer? def main(): # Display the main menu while True: print print " Draw a Shape" print " ============" print print " 1 - Draw a triangle" print " 2 - Draw a square" print " 3 - Draw a rectangle" print " 4 - Draw a pentagon" print " 5 - Draw a hexagon" print " 6 -

How to make a batch file that send application an input char

由 早过忘川 提交于 2019-12-01 05:29:18
问题 I'm writing a batch file that launch an application. app.exe After the application is launched, I'm getting a list of options in the console, and the program waits for input, for example: a: start session b: end session c: end How do I make the batch type a ? 回答1: Other than using echo as @npclaudiu suggested, you could also write the expected input to a text file and then have the app read the file: app.exe <input.txt This works if the app expects more than one line of input. 回答2: First,

Batch Script Programming — How to allow a user to select a file by number from a list of files in a folder?

由 蓝咒 提交于 2019-12-01 05:04:40
问题 I have a folder with N files in it. I'm trying to figure out how to do the following: Display a list of the files with numbers next to them for selection: 01 - FileA.pdf 02 - FileB.pdf 03 - FileC.pdf ... Then, have the user select which file he wants to use by typing in the corresponding number. I have no idea where to even begin with this one. 回答1: The following batch script should do what you want, the explanation follows below: @ECHO OFF SET index=1 SETLOCAL ENABLEDELAYEDEXPANSION FOR %%f

How to restrict user input character length of HTML5 input type=“number”?

由 谁都会走 提交于 2019-12-01 04:18:41
问题 How do I restrict user input to a given length in an HTML5 input[type=number] textbox? the answers to How can I limit possible inputs in a HTML5 "number" element? do not handle illegal inputs <input class="quantity" type="number" min="0" max="99999" maxlength="5" /> $("quantity").keyup(function(){ var $field = $(this); if ($field.val().length > Number($field.attr("maxlength"))) { var value = $field.val().slice(0, 5); $field.val(value); } }); I know the maxlength attribute is not supported,

Turn a User Input String to Upper Case Java

由 对着背影说爱祢 提交于 2019-12-01 04:05:07
This may seem like a silly question, but after going through pages of google, i havnt been able to find the answer i want. s1.setName(JOptionPane.showInputDialog("Enter Name: "); For the above piece fo code, how would i format the data the user entered to be all capitals? Any help here would be appreciated. The String class has a toUpperCase() method on it. JOptionPane.showInputDialog(..) returns a String, so you can use: JOptionPane.showInputDialog("Enter name: ").toUpperCase(); See String.toUpperCase() Remember that String is immutable, so this creates a duplicate string 来源： https:/

What is a more elegant solution to these nested if/elseif statements?

由 假装没事ソ 提交于 2019-12-01 02:44:01
问题 I'm building a website that contains users with user profiles. Many of the fields in the profile are optional. There is an opportunity for a lot of user-generated content, and so I need to display the author of this content in many different locations of the site (comments, posts, etc.). In the user's profile, he is able to (optionally) fill out his "first name", his "last name", and a "display name". To display the author, I wrote a helper method that looks through a provided array of these

R Shiny store the user input from multiple dynamically generated textAreaInput fields in an object in the server part

由 妖精的绣舞 提交于 2019-12-01 01:23:53
New to shiny and struggling with this for more than two days now. I have created an application where the user loads .csv data file and chooses one or more variables whose names appear in the application as check boxes. When a checkbox is checked, a new checkbox appears under with the same name and when it is clicked too, a textAreaInput appears next to it where the user can add variable names that constitute the target variable as a scale. Here is an oversimplified version of the application: library(shiny) ui <- fluidPage( mainPanel( fileInput(inputId = "file", label = "Choose File",

Running C scripts with terminal instead of Xcode

由 南楼画角 提交于 2019-12-01 01:15:12
Currently I am developing a couple of C programs on my mac using Xcode. There however is 1 problem. My study requires me to use some sort of input field through the coding. So for instance if the users wants to run the program 10 times or wants the program to create 10 answers. I am using "atoi(argv[1])" just to get the input from the user. This is exactly the problem. As soon as I run the program it just starts to bug, which is normal I quess because he is waiting for the input and not receiving it or something else. Anyways I tried to solve this problem with this link: How to run command
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