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madiik

Member

From: floor above Yuuta

Joined: 2015-02-26

Posts: 514

[Tool] Substring with actual "null" check!

C# is a bit bad
because that ugly language lacks to check if the string exists or not by that length
for example:

string.Substring(1,5) == "!add "

this would return an error if player chats below 5 letters

wtf C#

anyway, if you ever need to: here's my workaround.

namespace Extension
{
    public static class StringExtension
    {
        public static string GetSubstring(this string s, int beg, int end = 0)
        {
            if (end != 0 && s.Substring(beg, end) != null)
                return s.Substring(beg, end);
            else if (end == 0 && s.Substring(beg) != null)
            {
                return s.Substring(beg);
            }
            else
                return null;
        }
    }
}

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shh i have returned

912468

Member

Joined: 2015-02-21

Posts: 212

Website

Re: [Tool] Substring with actual "null" check!

Can't you just use this:

try
{
    string.Substring(1, 5);
}
catch { }

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madiik

Member

From: floor above Yuuta

Joined: 2015-02-26

Posts: 514

Re: [Tool] Substring with actual "null" check!

Can't you just use this:

try
{
    string.Substring(1, 5);
}
catch { }

In this case, it would give you an error too and NOT even do it.
I've done this before, "try" and "catch." Still errored with Substring.

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shh i have returned

Different55

Forum Admin

Joined: 2015-02-07

Posts: 16,575

Re: [Tool] Substring with actual "null" check!

It's been way too long since I did anything in C# so I might be missing something but why not just assign null to the variable inside the catch statement instead of leaving the catch statement empty?

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"Sometimes failing a leap of faith is better than inching forward"
- ShinsukeIto

realmaster42

Formerly marcoantonimsantos

From: ̍̍̍̍̍̍̍̍̍̍̍̍̍̍̍̍̍̍̍̍̍̍̍̍̍̍̍̍̍

Joined: 2015-02-20

Posts: 1,380

Website

Re: [Tool] Substring with actual "null" check!

Can't you just do this:

if (string.StartsWith("!add"))
{}

but okie

try
{
    string.Substring(0, 5);
}
catch (Exception excep)
{
    try
    {
        string.Substring(0,4) //heres another cmd
    }
    catch(Exception except)
    {
      string.Substring(0,2)  //oh hi dere im anuter commund
    }
}

ALL MORE LENGTH ON TOP!
in bot words,
Top to below length number

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