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How to access object attribute given string corresponding to name of that attribute
...this and say i have a dataframe df1,and a variable x = 'df1' i.e. df1 as a string in var x. i want to print the shape of df like this, getattr(x, 'shape') or getattr('df1', 'shape'). I know this cannot be done with getattr, any other methods.
– ihightower
Feb 1...
How to specify mapping rule when names of properties differ
... LookupDetailsBO
{
public int ID { get; set; }
public string Description { get; set; }
}
and the other class is
public class MaterialBO
{
[MapTo(nameof(LookupDetailsBO.ID))]
public int MaterialId { get; set; }
[MapTo(nameof(LookupDetailsBO.Desc...
libcurl的使用总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...========================================*/
#include <iostream>
#include <string>
#include <vector>
#include <map>
#include “curl/curl.h”
using namespace std;
static char errorBuffer[CURL_ERROR_SIZE];
static int writer(char *, size_t, size_t, string *);
static bool init(CURL *&, char *,s...
Store print_r result into a variable as a string or text
...flow.com%2fquestions%2f9325067%2fstore-print-r-result-into-a-variable-as-a-string-or-text%23new-answer', 'question_page');
}
);
Post as a guest
Name
...
How to use concerns in Rails 4
...tags, through: :taggings
class_attribute :tag_limit
end
def tags_string
tags.map(&:name).join(', ')
end
def tags_string=(tag_string)
tag_names = tag_string.to_s.split(', ')
tag_names.each do |tag_name|
tags.build(name: tag_name)
end
end
# methods define...
How can I detect if this dictionary key exists in C#?
...if (entry.Street != null)
{
row["HomeStreet"] = entry.Street.ToString();
}
}
...with the inner conditional repeated as necessary for each key required. The TryGetValue is only done once per PhysicalAddressKey (Home, Work, etc).
...
Prompt for user input in PowerShell
...
Read-Host is a simple option for getting string input from a user.
$name = Read-Host 'What is your username?'
To hide passwords you can use:
$pass = Read-Host 'What is your password?' -AsSecureString
To convert the password to plain text:
[Runtime.InteropServ...
Read-only list or unmodifiable list in .NET 4.0
...oking for ReadOnlyCollection, which has been around since .NET2.
IList<string> foo = ...;
// ...
ReadOnlyCollection<string> bar = new ReadOnlyCollection<string>(foo);
or
List<string> foo = ...;
// ...
ReadOnlyCollection<string> bar = foo.AsReadOnly();
This creates...
Visual Studio debugger - Displaying integer values in Hex
...e', and nq for displaying with 'no quotes.' They can be used together:
my_string_func(),ac,nq
nq is useful inside DebuggerDisplay attributes, which can appear on a class:
[DebuggerDisplay("{my_string_func(),nq}")]
class MyClass
{
/* ...example continues below... */
...or on one or more fie...
How to bind a List to a ComboBox?
...ng (if so, look at using a BindingList)
public class Country
{
public string Name { get; set; }
public IList<City> Cities { get; set; }
public Country(string _name)
{
Cities = new List<City>();
Name = _name;
}
}
List<Country> countries = new...