yesterday i had completed coding of my block which has too may if..else blocks….which goes too approx. 20-30 lines… it does simple logic as under:
1. Gets Value from Querystring
2.and based on value redirect my page to appropriate page..
for doing the above thing i had written following code[looks like garbage]..
———————————————————————————————————
private void CacheAndTransfertoNext(){
string EntryPoint = Request.QueryString["EntryPoint"];
if (!String.IsNullOrEmpty(EntryPoint)){
if (_emppresnter.SaveEmployee()){
//Redirect on Next Page Based on EntryPoint Value
if (EntryPoint == “1″){
Response.Redirect(“Page1.asp”);}
else if (EntryPoint == “2″){
Response.Redirect(“page2.asp”);}
else if (EntryPoint == “3″){
Response.Redirect(“page3.asp”);}
else if (EntryPoint == “4″){
Response.Redirect(“page4.asp”);}
else if (EntryPoint == “5″){
Response.Redirect(“page5.asp”);}
else if (EntryPoint == “6″){
Response.Redirect(“page6.asp”);}
else if (EntryPoint == “7″){
Response.Redirect(“page7.asp”);}
}
else
{
Response.Redirect(“Default.aspx”);}
}
———————————————————————————————————
i thought that can’t i make it smaller..i got it using predicate..i had accompilished the task in four lines…:)
Here it is:
1. I need to create some classes[which are self explanatory].
URLList.cs
using System;
using System.Collections.Generic;
using System.Text;
using System.Configuration;
public class URLList{
private List<MyUrls> _bookerurl = new List<MyUrls>();public List<MyUrls> BookerUrlList{
get { return _bookerurl; }
set { _bookerurl = value; }}
public URLList(){
_bookerurl.Add(new BookerURL(“1″,“page1.asp”));_bookerurl.Add(new BookerURL(“2″,“page2.asp”));__bookerurl.Add(
new BookerURL(“3″,“page3.asp”));__bookerurl.Add(new BookerURL(“4″,“page4.asp”));__bookerurl.Add(
new BookerURL(“5″,“page5.asp”));__bookerurl.Add(new BookerURL(“6″,“page6.asp”));}
}
using System;
using System.Collections.Generic;
using System.Text;
public class MyUrls
{
public MyUrls(){
}
public MyUrls(string key, string value){
_key = key;
_value = value;
}
private string _key;public string Key{
get { return _key; }
set { _key = value; }}
private string _value;public string Value{
get { return _value; }
set { _value = value; }}
}
——————- Now Lets see my Function now..
private void CacheAndTransfertoNext()
{
string EntryPoint = Request.QueryString["EntryPoint"];if (!String.IsNullOrEmpty(EntryPoint)){
if (_emppresnter.SaveEmployee()){
URLList urlist = new URLList();
MyUrls _nexturl = urlist.BookerUrlList.Find(delegate(MyUrls url) { return url.Key == EntryPoint; });
string nextpageurl = (_nexturl != null) ? _nexturl.Value : ”Default.aspx”;
Response.Redirect(nextpageurl);
}
}
