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Is it possible to look up if a string in contained in an Array, with a switch case?
string text = "blalbac";
string arr[] = {"a","b","c"};
switch (text)
{
case arr.Contains(filename):
//do..
break;
}
I’m not sure what you’re trying to do. Do you want something like
foreach(string item in arr)
{
if(text.Contains(item))
{
...
}
}
Related
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I have a string array as follows:
string[] stringArray = { "1122|false", "1123|true", "1124|true", "1125|false" };
In essence, it is broken down by id|active where for example id is say 1122 and active is true or false.
Say my id was 1123, how would I search this array to get the value of true in this case? I understand Substring needs to be used with IndexOf but not sure how to tie it together.
Little bit of LINQ and String.Split should do the trick.
string[] stringArray = { "1122|false", "1123|true", "1124|true", "1125|false" };
int id = 1123;
var itemWithGivenId = stringArray
.SingleOrDefault(s => int.Parse(s.Split('|')[0]) == id);
Console.WriteLine(bool.Parse(itemWithGivenId.Split('|')[1]));
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I can convert byte array to ASCII string in C# by Encoding.ASCII.Getstring() method.
But I don't know how to convert Span to String.
Added I want to use Span<byte>.ToArray().
Encoding.GetString does not accept Span<byte>.
But you can create a Extension Method:
public static class EncodingExtensions
{
public static string GetString(this Encoding encoding, Span<byte> source)
{
//naive way using ToArray, but possible to improve when needed
return encoding.GetString(source.ToArray());
}
}
Then you are able to call:
var foo = new Span<byte>();
var bar = Encoding.ASCII.GetString(foo);
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I'm writing a console application with a switch that contains a lot of commands, and the command called "help" that could output all cases in the switch without have to write them all.
switch(Console.ReadLine())
{
case "help":
Console.WriteLine("All switch cases");
break;
case "command1":
// Code
break;
}
I would sugest using a dictionary, for example:
var dict = new Dictionary<string, Action>
{
{ "help", doHelp },
{ "command1", doCommand1 }
};
// then you can do:
var action = dict["help"];
action();
// if you want to add another command later, use:
dict.Add("command2", () => doCommand2());
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I trying to make something like that:
// int counter; - this is changing in ther other parts of program
bool abc1; bool abc2; bool abc3; bool abc4;
if("abc" + counter == true)
{
//some code
}
Anyway, I need to convert string and int to bool name. How can I do this?
Use an array instead:
bool[] abc;
// ...
if (abc[counter] == true) {
{
// some code.
}
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i have got this error
Error 3 Cannot apply indexing with [] to an expression of type
my problem here
if (client["banhours"] == 0)
{
client["banhours"] = -1;
client["banreason"] = "Infinite time.";
client["banstamp"] = DateTime.Now.AddYears(100);
}
if (Account.State == Database.AccountTable.AccountState.Banned)
{
if (client["banhours"] != -1)
{
DateTime banStamp = client["banstamp"];
if (DateTime.Now > banStamp.AddDays(((int)client["banhours"]) / 24).AddHours(((int)client["banhours"]) % 24))
Account.State = Database.AccountTable.AccountState.Player;
}
}
client is >>>
Client.GameClient client;
Have you tried client.banhours or client.banreason?
If Client.GameClient is a class and those are properties or fields, they must not be accessed like an array or dictionary.