How do I read from the entire array in c#

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I have this code here and I am trying to read the indexes of the array I need it to read all not just one at a time

Is this possible?

C#

string s = textBox1.Text;

           string[] arr = new string[]
   {
       "cat",
       "dog",
       "panther",
       "tiger"
   };

          if (s.Contains(arr[0]))
           {
string v = s.Replace(arr[0], "*********");
              //show message with work that isnt allowed
              MessageBox.Show("Can not use the word " + arr[0]);
               textBox2.Text = v;
           }
           else
           {
               textBox2.Text = s;
           }

Posted 19-Sep-15 15:34pm

Member 11002137

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PIEBALDconsult 20-Sep-15 0:21am

Ooorrr... convert your array of strings into a Regular Expression.

4 solutions

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George Swan · Answer 1 · 2015-09-19T21:09:00

I'd do something like this.

C#

string st = "Bob had a cat and a tiger";
           string[] arr = {
               "cat",
               "dog",
               "panther",
               "tiger"
           };
           foreach (var name in arr)
           {
               if (st.Contains(name))
               {
                   st = st.Replace(name, "****");
                   Console.WriteLine("Cannot use the word " + name);
               }

           }

           Console.WriteLine(st);//Bob had a **** and a ****

           //using linq
           st = "Bob had a dog and a panther";

               foreach (var name in arr.Where(name => st.Contains(name)))
               {
                   st = st.Replace(name, "****");
                   Console.WriteLine("Cannot use the word " + name);
               }
               Console.WriteLine(st);

            //using a StringBuilder with no 'where' clause
           st = "Bob had a dog and a panther";
           StringBuilder msb=new StringBuilder(st);

               foreach (var name in arr)
               {
                   msb.Replace(name, "****");
                   Console.WriteLine("Cannot use the word " + name);
               }
               Console.WriteLine(msb);

onelopez · Answer 2 · 2015-09-19T16:57:00

Solution 1

use a for loop to read

C#

for(int i = 0; i < arr.Length; i++){
 // arr[ i ]  do something here
}

Posted 19-Sep-15 16:57pm

onelopez

Abhinav S · Answer 3 · 2015-09-19T18:14:00

Solution 2

Arrays and many other collections implement an iterator interface that can help loop through the collection (or array).
Here are some examples of iterating through these arrays -
Iterators (C# and Visual Basic)[^]
How to: Iterate through an array[^]

Posted 19-Sep-15 18:14pm

Abhinav S

Member 11002137 · Answer 4 · 2015-09-19T23:34:00

ok thanks for the help guys I was able to use solution 3 and this is what I came up with

string s = textBox1.Text;

           string[] arr = new string[]
  {
      "cat",
      "dog",
      "panther",
      "tiger"
  };
          foreach (var name in arr)
          {
              if (s.Contains(name))
              {
                  s = s.Replace(name, "****");
               //   MessageBox.Show("Cannot use the word " + name);

           }
           else
           {
               textBox2.Text = s;
           }

however it will work but it don't read the last word in this case tiger

How do I read from the entire array in c#

4 solutions

Solution 3

Solution 1

Solution 2

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