Re: [OT] My First C# (warning - long post)

Frank Swarbrick wrote:
LX-i<lxi0007@xxxxxxxxxxxx> 02/01/07 7:51 AM >>>
Along those lines - is there a better way to search through an array other than "for (int i = 0; i < array.length; i++)"?

I'm not sure specifically what you are referring to, but, if we assume the
above code is something like
string array[] = new string[10];
for (int i = 0; i < array.length; i++)
{
doSomething(array[i]);
}

Not quite... but close enough.

You can replace it with

foreach (string s in array)
{
doSomething(s);
}

Is that what you're looking for?

Sort of. I've been doing some digging, and had found foreach() - I also found the DataSet's ReadXml method. This is what I've got at the current time...

protected DataSet keywords = new DataSet();
....
// This is executed in the constructor
protected void fillCobolKeywords() {
keywords.ReadXml("cobol_keywords.xml");
}
....
// Returns "true" if the word passed is a COBOL keyword
protected bool isCobolKeyword(String ickText)
{
bool ick = false;
DataTable dt = keywords.Tables[0];

foreach (DataRow dr in dt.Rows)
{
if (dr[0].ToString() == ickText)
{
ick = true;
}
}

return ick;
}

With this, though, if the keyword is "ACCEPT", it's still plowing through 350+ entries before returning. Could (should) I short-circuit it and return true in the loop - something like this...

// Returns "true" if the word passed is a COBOL keyword
protected bool isCobolKeyword(String ickText)
{
DataTable dt = keywords.Tables[0];

foreach (DataRow dr in dt.Rows)
{
if (dr[0].ToString() == ickText)
{
return true;
}
}

return false;
}

I appreciate the suggestion. foreach is pretty cool - I've used it in PHP quite a bit. I guess what I was looking for was an array.search method or something that may apply a more efficient searching algorithm than just "gimme one - is this it? nope, gimme another one - is this it? nope..." etc.

(The only reason I'm concerned with this sort of efficiency is that this ....er... whatever it is (class/component/process masquerading as OO) will run as part of a page post from our .NET CM site. If I'm rebuilding the indexes, it doesn't matter if it takes 20 seconds per program - but in that web page, it would be unacceptable.)

Hmm.... Maybe this needs to be a separate thread... Can an ASP.NET page spawn a thread that runs after the response has been sent to the user? Sounds like I've got more digging to do.... I wish I wasn't moving in 2 weeks! It seems like there's just too much to consider - I guess there's got to be something for the person who comes after me to do. :)

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