[Original] filter Request Parameters

Can we use the system. Web. httpcontext. Current. Request. url. query. split method to obtain such a character? Name = caicaihui & Title = hahaha & page = 1

If we want to filter out one of the parameters, for example, filter out the page parameter to get the final result? Name = caicaihui & Title = hahaha what should I do? Here I have written three methods for your reference.

Method 1 use Arrays

Private   String Outrequest1 ( String Request)
{
String Query =   "" ;
String [] Para = System. Web. httpcontext. Current. Request. url. query. Split ( " ? & " . Tochararray ());
Foreach ( String Name In Para)
{
If ( ! Name. tolower (). Contains (request ))
{
Query + =   " & "   + Name;
}
}
Return   " ? "   + Query. trimstart ( ' & ' );
}

CallOutrequest1 ("Page")

Method 2 traverse request
Private   String Outrequest2 ( String Request)
{
String Query =   "" ;
Foreach ( String Name In Request. querystring. allkeys)
{
If (Name. tolower () ! = Request)
{
Query + =   " & "   + Name +   " = "   + Request. querystring [name];
}
}
Return   " ? "   + Query. trimstart ( ' & ' );
}

CallOutrequest2 ("Page")

Method 3 use regular expressions

Private   String Outrequest3 ( String Request)
{
Return RegEx. Replace (system. Web. httpcontext. Current. Request. url. query, request, "" );
}

CallOutrequest3 (@ "[& | \?] Page = \ D +")

CodeAspect:In the three methods, regular code is the simplest, but also difficult. Second, it is method 2, which is easy to understand.

Efficiency:Method 2> method 3> method 1