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C#/.NET - convert string to long

12 points
Created by:
JustMike
3488

In C#/.NET string can be parsed to long in few ways.

1. long.Parse example

string text = "123";
long value = long.Parse(text);
Console.WriteLine(value);

Output:

123

2. long.TryParse example

string text = "123";
long value;

if (long.TryParse(text, out value))
	Console.WriteLine(value);

Output:

123

3. Convert.ToInt64 example

string text = "123";
long value = Convert.ToInt64(text);
Console.WriteLine(value);

Output:

123

4. TypeConverter.ConvertFrom example

TypeConverter converter = TypeDescriptor.GetConverter(typeof(long));

string text = "123";
long value = (long)converter.ConvertFrom(text);

Console.WriteLine(value);

Output:

123

5. Custom conversion example

Check this link: https://dirask.com/q/QD9EaD

6. Notes

The following methods long.Parse, long.TryParse, Convert.ToInyt64 and TypeConverter.ConvertFrom throw System.FormatException.

C# - string conversion

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