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Append TimeStamp to a File Name

...ing a time stamp to the file name with something like this DateTime.Now.ToString().Replace('/', '-').Replace(':', '.') . Is there a better way to do this? ...
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Why can't decimal numbers be represented exactly in binary?

...1/3, 1/9, 1/27, or any rational in decimal notation. We do it by adding an extra symbol. For example, a line over the digits that repeat in the decimal expansion of the number. What we need to represent decimal numbers as a sequence of binary numbers are 1) a sequence of binary numbers, 2) a radix p...
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Efficient list of unique strings C#

What is the most efficient way to store a list of strings ignoring any duplicates? I was thinking a dictionary may be best inserting strings by writing dict[str] = false; and enumerating through the keys as a list. Is that a good solution? ...
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django template display item value or empty string

...lt_if_none template filter, (doc). default_if_none will display the given string if the variable is 'None'. default will display the string if the variable evaluates to False, ie empty strings, empty lists etc {{ item.somefield|default_if_none:"" }} {{ item.somefield|default:"" }} ...
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How can I get LINQ to return the object which has the max value for a given property? [duplicate]

...2); Thanks Nick - Here's the proof class Program { static void Main(string[] args) { IEnumerable<Item> items1 = new List<Item>() { new Item(){ ClientID = 1, ID = 1}, new Item(){ ClientID = 2, ID = 2}, new Item(){ ClientID = 3...
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Populate XDocument from String

...thing and I am trying to figure out whether I can load an XDocument from a string. XDocument.Load() seems to take the string passed to it as a path to a physical XML file. ...
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How do I create a nice-looking DMG for Mac OS X using command-line tools?

...Create a new DMG, writeable(!), big enough to hold the expected binary and extra files like readme (sparse might work). Mount the DMG and give it a layout manually in Finder or with whatever tools suits you for doing that (see FileStorm link at the bottom for a good tool). The background image is us...
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How to supply value to an annotation from a Constant java

... Compile constants can only be primitives and Strings: 15.28. Constant Expressions A compile-time constant expression is an expression denoting a value of primitive type or a String that does not complete abruptly and is composed using only the following: Literals of p...
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Ignoring a class property in Entity Framework 4.1 Code First

...public class Customer { public int CustomerID { set; get; } public string FirstName { set; get; } public string LastName{ set; get; } [NotMapped] public int Age { set; get; } } [NotMapped] attribute is included in the System.ComponentModel.DataAnnotations namespace. You can al...
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How can I easily convert DataReader to List? [duplicate]

... [Field("id")] public int? CustomerId; [Field("name")] public string CustomerName; } ... using (DataReader reader = ...) { List<CustomerDTO> customers = reader.AutoMap<CustomerDTO>() .ToList(); } (AutoMap(), is an extension met...