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How to parse a string into a nullable int
I'm wanting to parse a string into a nullable int in C#. ie. I want to get back either the int value of the string or null if it can't be parsed.
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How to send a stacktrace to log4j?
... The logger takes an object for its first argument and will toString() it. However the second argument has to be a Throwable and displays the stack trace.
– Peter Lawrey
Dec 3 '10 at 16:50
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Why doesn't Dictionary have AddRange?
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I've got some solution:
Dictionary<string, string> mainDic = new Dictionary<string, string>() {
{ "Key1", "Value1" },
{ "Key2", "Value2.1" },
};
Dictionary<string, string> additionalDic= new Dictionary<string, string>() {
{ "...
How can I get the assembly file version
...vi = System.Diagnostics.FileVersionInfo.GetVersionInfo(assembly.Location);
string version = fvi.FileVersion;
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Setting a property by reflection with a string value
...e to set a property of an object through Reflection, with a value of type string .
So, for instance, suppose I have a Ship class, with a property of Latitude , which is a double .
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Proper way to initialize a C# dictionary with values?
....NET 4.0 console application:
static class Program
{
static void Main(string[] args)
{
var myDict = new Dictionary<string, string>
{
{ "key1", "value1" },
{ "key2", "value2" }
};
Console.ReadKey();
}
}
Can you try to repro...
Nullable type as a generic parameter possible?
...>, and call the method with the non nullable parameter
static void Main(string[] args)
{
int? i = GetValueOrNull<int>(null, string.Empty);
}
public static Nullable<T> GetValueOrNull<T>(DbDataRecord reader, string columnName) where T : struct
{
object columnValue = read...
How can I determine if a String is non-null and not only whitespace in Groovy?
Groovy adds the isAllWhitespace() method to Strings, which is great, but there doesn't seem to be a good way of determining if a String has something other than just white space in it.
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What is Func, how and when is it used
...pe to reference a method that returns some value of T. E.g.
public static string GetMessage() { return "Hello world"; }
may be referenced like this
Func<string> f = GetMessage;
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im...
Why aren't variables declared in “try” in scope in “catch” or “finally”?
...hrow new ArgumentException("some operation that throws an exception");
string s = "blah";
}
catch (e as ArgumentException)
{
Console.Out.WriteLine(s);
}
This clearly is a problem - when you reach the exception handler, s will not have been declared. Given that catches are meant to handl...