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I need some help in foreach:

my code:

var Content = "nickname:Steven ID:01 nickname:pascal ID:02 nickname:nils ID:03";
            var v = Content.Split().Where(l => l.StartsWith("nickname:")).ToList();
            var c = Content.Split().Where(l => l.StartsWith("ID:")).ToList();
            for(int i = 0; i < v.Count(); i++)
            {
                var x = v[i];
                foreach (var o in c)
                {
                    var b = o;
                    listBox1.Items.Add(x + " - " + b);
                }
            }

Output:

nickname:Steven - ID:01
nickname:Steven - ID:02
nickname:Steven - ID:03
nickname:pascal - ID:01
nickname:pascal - ID:02
nickname:pascal - ID:03
nickname:nils - ID:01
nickname:nils - ID:02
nickname:nils - ID:03

I want only display the nickname and the ID but something is wrong.. I dont know how I can fix this.

best regards

If you want to use a regex alternative,

var Content = "nickname:Steven ID:01 nickname:pascal ID:02 nickname:nils ID:03";
var list = Regex.Matches(Content, @"nickname:(.+?)\s+ID:(\d+)")
            .Cast<Match>()
            .Select(m => new
            {
                Name = m.Groups[1].Value,
                ID = m.Groups[2].Value
            })
            .ToList();

foreach multiple times and display two arrays, If you want to use a regex alternative, var Content = "nickname:Steven ID:01 nickname:pascal ID:02 nickname:nils ID:03"; var list = Regex. If the result of any expression is an array, a!forEach() returns a two-dimensional array. Two-dimensional arrays can be useful when processing data, but not all functions support them. Two-dimensional arrays are auto-flattened into one-dimensional arrays upon being stored in a process variable, node input, typed rule input, or custom data type field.

You don't need two loops, that's why it is giving the result you don't want. Remember, Inner loop runs completely for each value of outer loop

I have corrected the code for you:

var Content = "nickname:Steven ID:01 nickname:pascal ID:02 nickname:nils ID:03";
        var v = Content.Split().Where(l => l.StartsWith("nickname:")).ToList();
        var c = Content.Split().Where(l => l.StartsWith("ID:")).ToList();
            for(int i = 0; i < v.Count(); i++)
            {
                var x = v[i];
                var ids = c[i];
                Console.Write(x.ToString() + " - ");
                Console.WriteLine(ids.ToString());

            }

Iterate 2 arrays in a single foreach loop, It did produce the desired result, the below piece of code shows my implementation,. foreach (array_combine($codes, $names)  You should note, there is no jQuery forEach method, which I think many developers expect. The jQuery each method has two parameters, an array and a callback. The callback method has two values passed to it, the current index and the item value, which is the opposite of the array and Lodash forEach methods.

Try this:

var Content = "nickname:Steven ID:01 nickname:pascal ID:02 nickname:nils ID:03";
var strs=Content.Split(' ');
for(int i = 0; i < strs.Count(); i+=2)
{
var name = strs[i].Split(':')[1];
var id = strs[i+1].Split(':')[1];
Console.WriteLine(name + " - " + id);

    }

Loop over multiple arrays simultaneously, Loop over multiple arrays (or lists or tuples or whatever they're called in your language) and display the i th element of each. Use your language's 03 C-Vals PIC 9 OCCURS 3 TIMES. 01 I PIC 9. foreach (i; 0 .. min(s1.length, s2.length, a1​.length)) Both a definition for any number of collections and two A foreach loop reads a set of objects (iterates) and completes when it's finished with the last one. The collection of objects that are read is typically represented by an array or a hashtable. NOTE: The term iteration is a programming term that references each run of a loop. Each time a loop completes a cycle, this is called an iteration.

The problem is only with how you loop. Below is how you can correctly loop.

for (int i = 0; i < v.Count(); i++)
{
    listBox1.Items.Add(v[i] + " - " + c[i]);
}

Iterate associative array using foreach loop in PHP, Both arrays can combine into a single array using a foreach loop. Array: Arrays in PHP is a type of data structure that allows to storing multiple elements of  A Foreach element runs a subworkflow iteratively over an array of input parameters or attributes. You can select the arrays over which the subworkflow is run, and can pass the values for the elements of such an array when you run the workflow. The subworkflow runs as many times as the number of elements that you have defined in the array.

Multiple foreach statements - PHP, Hi All - How do I handle using multiple foreach loops? array and 10 elements in the second one, every element in the first array is inserted 10 times -> 100 rows. The data for both is coming from a readdir and then a converted thumbnail. forEach() executes the callback function once for each array element; unlike map() or reduce() it always returns the value undefined and is not chainable. The typical use case is to execute side effects at the end of a chain. forEach() does not mutate the array on which it is called (although callback, if invoked,

The two ways of iterating through arrays: list(), each(), and foreach , For example, an array may have keys 0, 1, 2, 5, 3, 6, 7. That is, it can have its keys out of order or entirely missing. As a result, code like this should generally be  Multiple Script Blocks Another feature of ForEach-Object is that it can take multiple script blocks. If you specify two script blocks, the first will be treated as the so-called begin block, while the second is the process block that's run once for each pipeline object. If you specify three, it's the same, and the third is the end block.

Combining two arrays using nested foreach loops, I have made the assumption that there is a 1:1 relationships between the $​attributes and $values array elements. With that I mean the array key  Using foreach to Loop Through PHP Arrays 27 May 2010 / 2 Comments Often you need to move through all the elements in a PHP array so that you can do something with each element’s value.

Comments
  • You should look at a regex pattern => (nickname:(\w+)\s+ID:(\d+)). Tested here
  • How do I add this now to listbox?
  • @FreddyGerogin You have a list of Name,ID pairs and you don't know how add them to a listbox? Have you tried anything before commenting?
  • I have tried many but this dont works, listbox1.items.add(list);
  • Those "many ways" seem missing a simple loop. As I said, it is a list. foreach(var x in list) listbox1.Items.Add(x.Name + "-" + x.ID);