How to loop through two arraylist?

[Colin Rodrigues]

this is my data,

cinema1 4pm
cinema1 5pm
cinema1 7pm
cinema2 2pm
cinema2 4.45pm
cinema3 10.45am

These are 2 different coloumns which I get from a webservice which can be arranged into an arraylist or array.. Now what I need is..the data to be displayed as follows..

cinema1
4pm 5pm 7pm
-----------------
cinema2
2pm 4.45pm
-----------------
cinema3
10.45am

[GaryTexmo]

I don't know if separate arrays are appropriate in this case... you need some way to directly associate the times to the cinema. You may want to look at a key value pair, or perhaps having new data type that you can put in an array.

Perhaps that data type can be something like...

public class ScheduleItem
{
  public string CinemaName { get; set; }
  public List<DateTime> ShowTimes { get; set; }
  ...
}

Then you can have a list of ScheduleItems and output accordingly?

If you absolutely must use two independent arrays, you will need something else to define how your data maps together...

[Colin Rodrigues]

I could even do it using Dictionary..can u help me in that

[GaryTexmo]

You can, yes... but your value will still have to be another object, which are a list of times. Here is the MSDN page for a Dictionary, have a read and give it a try. If you run into problems, post what you've got and we'll take a look.

http://msdn.microsoft.com/en-us/library/xfhwa508.aspx

[NitinSawant]

use Linq group by clause on both the arraylists

[Colin Rodrigues]

Thanks guys for your help...however. .i have used a dictionary and two new arrays to store the data... my final output is like this..
arraylist1----arraylist2
Cinema1 ----4pm 5pm 7pm
Cinema2---- 2pm 4.45pm
Cinema3----10.45am

Now my next task is to print alternate values from these arraylist into a html table..

it should look like this
=============== ===============
Cinema1
=============== ===============
4pm 5pm 7pm
=============== ===============
Cinema2
=============== ===============
2pm 4.45pm
=============== ===============