alphanumeric

EditText input with pattern android

由 早过忘川 提交于 2019-12-10 03:02:36
问题 I am having a EditText in which I have to accept alphanumeric input from user which is specific to pattern, and hyphens '-' are inserted automatically. "XXX-XXX-XXXX" how to achieve that ? Is there any pattern tool in android ? 回答1: You can use addTextChangedListener to EditText Refer this question , which demonstrate it 回答2: You can achieve that with PatternedTextWatcher. Edit: EditText editText = (EditText) findViewById(R.id.edittext); // Add text changed listener for automatic dots

Regex - Without Special Characters

由 十年热恋 提交于 2019-12-09 02:51:21
问题 I'm using regex to validate username ^[a-zA-Z]+\.[a-zA-Z]{4,10}^' Unfortunately it doesn't affect if the the value contains special characters such as !@#$%^&*)(':; I would glad to get some help for Regex that contains: Alphanumeric only ( a-zA-Z0-9 ) Length between 4 - 10 characters. 回答1: The conditions you specified do not conform to the regexp you posted. the regexp you posted ^[a-zA-Z]+\.[a-zA-Z]{4,10}^ is erroneous I guess, because of the ^ in the end, it will never be matched to any

What is the regex to match an alphanumeric 6 character string?

由 被刻印的时光 ゝ 提交于 2019-12-08 14:44:11
问题 I need regex for asp.net application to match an alphanumeric string at least 6 characters long. 回答1: I’m not familiar with ASP.NET. But the regular expression should look like this: ^[a-zA-Z0-9]{6,}$ ^ and $ denote the begin and end of the string respectively; [a-zA-Z0-9] describes one single alphanumeric character and {6,} allows six or more repetitions. 回答2: I would use this: ^[\p{L}\p{N}]{6,}$ This matches Unicode letters ( \p{L} ) and numbers ( \p{N} ), so it's not limited to common

NSString to float…what happens if NSString is not numerical and contains alphanumeric characters?

由 那年仲夏 提交于 2019-12-08 05:16:28
问题 if NSString sample = @"1sa34hjh#@"; Float 64 floatsample = [sample floatValue]; what happens? what does floatsample contain? 回答1: Read the documentation. Return Value The floating-point value of the receiver’s text as a float, skipping whitespace at the beginning of the string. Returns HUGE_VAL or –HUGE_VAL on overflow, 0.0 on underflow. Also returns 0.0 if the receiver doesn’t begin with a valid text representation of a floating-point number. The best way to figure out the return value is to

How to achieve Natural(human alpha-numeric ) Sorting, for silverlight datagrids using ViewModel?

由 ╄→гoц情女王★ 提交于 2019-12-08 03:00:02
问题 In silverlight project that uses datagrid, I am using some column that defines "Label number" which is a Varchar. I want to sort this column as described in natural sort order as described in "http://www.interact-sw.co.uk/iangblog/2007/12/13/natural-sorting" or any possible way. When I look around datagrid I saw SortMemberPath="stringProperty" only. Hence, my sorting is just working like string sorting only. For example: Z1 Z10 Z2 Z20 where as I want it to sort like: Z1 Z2 Z10 Z20 It will be

Alpha-numeric sequence in SQL Server

由 余生长醉 提交于 2019-12-07 02:05:48
问题 I need to generate a 3 character alphanumeric sequence, in SQL Server 2008, as follows: 001, 002, ..., 999, A01, A02, ..., A99, B01, B02, ..., Z99 The next item in the sequence will get generated from a stored procedure and stored in a NCHAR(3) table column. 回答1: To get the next sequence you can add a Id like WITH seq AS ( SELECT ROW_NUMBER() OVER (ORDER BY x.alpha + y.number + z.number) AS Id, CONVERT(nchar(3), x.alpha + y.number + z.number) AS Result FROM ( VALUES ('0'), ('1'), ('2'), ('3')

NSString to float…what happens if NSString is not numerical and contains alphanumeric characters?

由 我只是一个虾纸丫 提交于 2019-12-06 19:23:25
if NSString sample = @"1sa34hjh#@"; Float 64 floatsample = [sample floatValue]; what happens? what does floatsample contain? Read the documentation . Return Value The floating-point value of the receiver’s text as a float, skipping whitespace at the beginning of the string. Returns HUGE_VAL or –HUGE_VAL on overflow, 0.0 on underflow. Also returns 0.0 if the receiver doesn’t begin with a valid text representation of a floating-point number. The best way to figure out the return value is to check the return value yourself. You can create a small program and save it as a file with a .m extension.

T-Sql - Order By on Alphanumeric

由 ☆樱花仙子☆ 提交于 2019-12-06 05:44:07
i have a list of alphanumeric tokens, say '1a', '1b', '02', '03', '10', '11', etc... Now, what's the best way to do an order by on this list of tokens? I am getting '1a', '1b', '10', '11', '02', '03', but i need it to be '1a', '1b', '02', '03', '10', '11' UPDATE ok, i am doing this after the suggestion but it's not working. declare @tokens table(token varchar(20)); insert into @tokens select '1a' select '1b' select '02' select '10' select * from @tokens order by case when ISNUMERIC(token) = 1 then right('0000000000'+token+'0',10) else right('0000000000'+token,10) end I am getting the response

Creating Oracle sequence that starts with alphanumeric

由 不羁岁月 提交于 2019-12-05 08:24:14
I want to create sequence to start with character inv and increment by 1 The values to be INV01 INV02 INV03 etc... CREATE SEQUENCE invoice_nun START WITH "INV" INCREMENT BY 1 Only integer valued sequences can be created. So the statement must be: CREATE SEQUENCE invoice_nun START WITH 1 INCREMENT BY 1; You can convert the fetched value to a string and add an appropriate prefix. select 'INV'||to_char(invoice_nun.nextval,'FM09999999') from dual; You can create a function to simulate a sequence returning appropriate string values create or replace function next_invoice_nun return varchar2 as

Alpha-numeric sequence in SQL Server

由 徘徊边缘 提交于 2019-12-05 06:07:19
I need to generate a 3 character alphanumeric sequence, in SQL Server 2008, as follows: 001, 002, ..., 999, A01, A02, ..., A99, B01, B02, ..., Z99 The next item in the sequence will get generated from a stored procedure and stored in a NCHAR(3) table column. To get the next sequence you can add a Id like WITH seq AS ( SELECT ROW_NUMBER() OVER (ORDER BY x.alpha + y.number + z.number) AS Id, CONVERT(nchar(3), x.alpha + y.number + z.number) AS Result FROM ( VALUES ('0'), ('1'), ('2'), ('3'), ('4'), ('5'), ('6'), ('7'), ('8'), ('9'), ('A'), ('B'), ('C'), ('D'), ('E'), ('F'), ('G'), ('H'), ('I'), (
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