C# – How to UrlEncode without using System.Web

.net.net-client-profilec++urlencode

I am trying to write a windows client application that calls a web site for data. To keep the install to a minimum I am trying only use dlls in the .NET Framework Client Profile. Trouble is that I need to UrlEncode some parameters, is there an easy way to do this without importing System.Web.dll which is not part of the Client Pofile?

Best Solution

System.Uri.EscapeUriString() can be problematic with certain characters, for me it was a number / pound '#' sign in the string.

If that is an issue for you, try:

System.Uri.EscapeDataString() //Works excellent with individual values

Here is a SO question answer that explains the difference:

What's the difference between EscapeUriString and EscapeDataString?

and recommends to use Uri.EscapeDataString() in any aspect.

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C# – How to calculate someone’s age based on a DateTime type birthday

An easy to understand and simple solution.

// Save today's date.
var today = DateTime.Today;

// Calculate the age.
var age = today.Year - birthdate.Year;

// Go back to the year in which the person was born in case of a leap year
if (birthdate.Date > today.AddYears(-age)) age--;

However, this assumes you are looking for the western idea of the age and not using East Asian reckoning.

C# – How to cast int to enum

From an int:

YourEnum foo = (YourEnum)yourInt;

From a string:

YourEnum foo = (YourEnum) Enum.Parse(typeof(YourEnum), yourString);

// The foo.ToString().Contains(",") check is necessary for enumerations marked with an [Flags] attribute
if (!Enum.IsDefined(typeof(YourEnum), foo) && !foo.ToString().Contains(","))
{
    throw new InvalidOperationException($"{yourString} is not an underlying value of the YourEnum enumeration.")
}

Update:

From number you can also

YourEnum foo = (YourEnum)Enum.ToObject(typeof(YourEnum) , yourInt);

Best Solution

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C# – How to calculate someone’s age based on a DateTime type birthday

C# – How to cast int to enum

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