Comment Feed for Channel 9 - for Iterations - Day 1 - Part 14 http://ecn.channel9.msdn.com/o9/ch9/2a23/1e14d67f-de4c-47a6-bc20-9e10015e2a23/day01part14_100_ch9.jpg Channel 9 - for Iterations - Day 1 - Part 14 When working with data or objects (such as controls) in applications, you often need to loop or, rather, iterate through groups. This video explains how to work with a simple “for iteration” statement. Since we'll be working with lots of different groups (such as collections of objects and collections of data) we’ll need to understand a little about how to navigate through the collection, or list, of those items. Download the source code in c# Download the source code in VB.Net en Thu, 23 May 2013 11:17:20 GMT Thu, 23 May 2013 11:17:20 GMT Rev9 Re: for Iterations - Day 1 - Part 14 i understand the theory of what the for loop is doing etc just fine. but this line i get confused...
message = message + i.ToString() + System.Environment.NewLine;
when i go through loop in my head i come to the conclusion you shouldnt need the "message +" part.. as in effect "message" has no value/string. yet when you remove it only "9" is displayed. also if you put "message = i.ToString() + message + System.Environment.NewLine;"  the NewLine is being initiated.
 
if you could clear this up for me i would appreciate it! cheers 

posted by james

]]> http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634263159770000000 Thu, 25 Nov 2010 21:06:17 GMT http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634263159770000000 james Re: for Iterations - Day 1 - Part 14 posted by james

]]> http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634263243240000000 Thu, 25 Nov 2010 23:25:24 GMT http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634263243240000000 james Re: for Iterations - Day 1 - Part 14 @james: System.Environment.NewLine doesn't have to be initiated.

He did create message and on every loop, he is recreating message with what was there, the loop counter, then a new line character.  Without the new line character there, it would look like this:
56789

instead of:
5
6
7
8
9

posted by Clint

]]> http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634269637020000000 Fri, 03 Dec 2010 09:01:42 GMT http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634269637020000000 Clint Re: for Iterations - Day 1 - Part 14 This is the same as message = message + i.ToString() + System.Environment.NewLine;

posted by Kristian

]]> http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634270751430000000 Sat, 04 Dec 2010 15:59:03 GMT http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634270751430000000 Kristian Re: for Iterations - Day 1 - Part 14 when the variable is set to this string userValue = myTextBox.Text = "2";
myResultReturned.Text = "You have won a million dollars";
LOL, I know this is probably wrong but the point I am asking/illustrating is that why does the first line take a value in and why does the second line read a value out... how does the code know the difference of what it is displaying / running onto the screen versus taking in???

posted by Christian

]]> http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634311856980000000 Fri, 21 Jan 2011 05:48:18 GMT http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634311856980000000 Christian Re: for Iterations - Day 1 - Part 14 I have no idea what I am doing wrong. This is my code: 

private void myButton_Click(object sender, RoutedEventArgs e)

       {

string message = "";

for (int i = 0; 1 < 10; i++)

           {

               message = message + i.ToString() + System.

Environment.NewLine;

            }

            myTextBlock.Text = message;
and for some reason it has a green line under myTextBlock and said there is unreachable code detected. What am I doing wrong?

posted by magicwin31

]]> http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634334089440000000 Tue, 15 Feb 2011 23:22:24 GMT http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634334089440000000 magicwin31 Re: for Iterations - Day 1 - Part 14 posted by shamelesstoad

]]> http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634339454140000000 Tue, 22 Feb 2011 04:23:34 GMT http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634339454140000000 shamelesstoad Re: for Iterations - Day 1 - Part 14 @shamelesstoad that worked, thank you so much.

posted by magicwin31

]]> http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634348138450000000 Fri, 04 Mar 2011 05:37:25 GMT http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634348138450000000 magicwin31 Re: for Iterations - Day 1 - Part 14 posted by Jorge

]]> http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634348721550000000 Fri, 04 Mar 2011 21:49:15 GMT http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634348721550000000 Jorge Re: for Iterations - Day 1 - Part 14 Why does the next code just writes down "9"? I mean, shouldnt it start with "1", print it, goes for the "2", prints it and so? I tried this code as i've done it several times in Java and it does print the whole secuence instead of just "9", so why isnt this working here?
privatevoid myButton_Click(object sender, RoutedEventArgs e)
        {
for (int i = 0; i < 10; i++)
            {
                mytxtBlock.Text = i.ToString() + System.Environment.NewLine;
            }
        }
 
 

posted by Jorge

]]> http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634348730510000000 Fri, 04 Mar 2011 22:04:11 GMT http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634348730510000000 Jorge Re: for Iterations - Day 1 - Part 14 posted by Jorge

]]> http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634348731620000000 Fri, 04 Mar 2011 22:06:02 GMT http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634348731620000000 Jorge Re: for Iterations - Day 1 - Part 14 posted by Griffin Wiebel

]]> http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634371291860000000 Thu, 31 Mar 2011 00:46:26 GMT http://channel9.msdn.com/Series/Windows-Phone-7-Development-for-Absolute-Beginners/for-Iterations#c634371291860000000 Griffin Wiebel