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Email address validation using ASP.NET MVC data type attributes
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If you are using .NET Framework 4.5, the solution is to use EmailAddressAttribute which resides inside System.ComponentModel.DataAnnotations.
Your code should look similar to this:
[Display(Name = "Email address")]
[Required(ErrorMessage = "The email addr...
Truncate number to two decimal places without rounding
Suppose I have a value of 15.7784514, I want to display it 15.77 with no rounding.
36 Answers
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The 'json' native gem requires installed build tools
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54
I believe those installers make changes to the path. Did you try closing and re-opening the CMD...
Given a number, find the next higher number which has the exact same set of digits as the original n
...in the correct place in O(n)).
An example will make this more clear:
123456784987654321
start with a number
123456784 987654321
^the first place from the right where the left-digit is less than the right
Digit "x" is 4
123456784 987654321
^find the smallest dig...
HttpClient not supporting PostAsJsonAsync method C#
I am trying to call a web API from my web application. I am using .Net 4.5 and while writing the code I am getting the error HttpClient does not contain a definition PostAsJsonAsync method.
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How do you extract a column from a multi-dimensional array?
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234
>>> import numpy as np
>>> A = np.array([[1,2,3,4],[5,6,7,8]])
>>> A...
Get the time difference between two datetimes
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This approach will work ONLY when the total duration is less than 24 hours:
var now = "04/09/2013 15:00:00";
var then = "04/09/2013 14:20:30";
moment.utc(moment(now,"DD/MM/YYYY HH:mm:ss").diff(moment(then,"DD/MM/YYYY HH:mm:ss"))).format("HH:mm:ss")
// outputs: "00:39:30"
If you have 24...
Evaluating string “3*(4+2)” yield int 18 [duplicate]
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14 Answers
14
Active
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linux 下巧妙使用squid代理服务器 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...访问速度，节约通信带宽
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原理：
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② 代理服务器接受到请求后，首先与访问控制列表中的访问规则相对照，如果...