Chaesar in C#RSS

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  CodeLikeAl3o...

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  Chaesar in C#

  Dec 04, 2017 05:43 PM|CodeLikeAl3oSS|LINK

  Hello,
  I made something called Chaesar but I have a problem.

  Dictionary<string, string> English = new Dictionary<string, string>();
              English.Add("a", "§");
              English.Add("b", "╚");
              English.Add("c", "{");
              English.Add("d", "A");
              English.Add("e", "Ä");
              English.Add("f", "█");
              English.Add("g", "Õ");
              English.Add("h", "T");
              English.Add("i", "├");
              English.Add("j", "e");
              English.Add("k", "ƒ");
              English.Add("l", "!");         
              English.Add("m", "á");
              English.Add("n", "┤");          
              English.Add("o", "‗");   
              English.Add("p", "8");    
              English.Add("q", "Ì");
              English.Add("r", "*");
              English.Add("s", "&");
              English.Add("t", "^");
              English.Add("u", "%");
              English.Add("v", "$");
              English.Add("w", "#");
              English.Add("x", "@");
              English.Add("y", "(");
              English.Add("z", "╣");
              English.Add(" ", " ");
              for (int i = 0; i < textBox1.TextLength; i++)
              {
                  string MyChar = textBox1.Text[i].ToString();
                  textBox2.Text += English[MyChar];
              }
          }

  everything works, but if I type in the textbox for example: "A" I get error, so my question is:
  how can I make it with words like: "a", "A", "b", "b".

  (sorry for my bad English)
  and this is the first time I'm here, sorry if Im post in the wrong place

• • Reply
  mgebhard

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  Re: Chaesar in C#

  Dec 04, 2017 06:07 PM|mgebhard|LINK

  string.ToLower();

• • Reply
  A2H

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  Re: Chaesar in C#

  Dec 04, 2017 07:58 PM|A2H|LINK

  As mgebhard suggested you need to use ToLower to make your comparison case insensitive. however you will still get exception on second iteration onwards as after first replacement text in textbox will be like A§ and this '§' value doesnt exist on dictionary as key.  You might consider using the below Linq code to replace the characters from Dictionary

   var formattedvalue = English.Aggregate(user_email.Text, (current, value) => current.ToLower().Replace(value.Key, value.Value));
  
              user_email.Text = formattedvalue;

  make sure you add the below namespace to your page

  using System.Linq;

  • Sample Working Demo

  Thanks,
  A2H
  My Blog | Dotnet Funda
• • Reply
  Cathy Zou

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  Re: Chaesar in C#

  Dec 05, 2017 08:59 AM|Cathy Zou|LINK

  Hi CodeLikeAl3oSS,

  Working sample as below:

    <asp:TextBox ID="textBox1" runat="server" OnTextChanged="TextBox1_TextChanged" AutoPostBack="true"></asp:TextBox>
              <br />
              <asp:TextBox ID="textBox2" runat="server"></asp:TextBox>

  CodeBehind:

   protected void TextBox1_TextChanged(object sender, EventArgs e)
          {
              textBox2.Text = "";
              Dictionary<string, string> English = new Dictionary<string, string>();
              English.Add("a", "§");
              English.Add("b", "╚");
              English.Add("c", "{");
              English.Add("d", "A");
              English.Add("e", "Ä");
              English.Add("f", "█");
              English.Add("g", "Õ");
              English.Add("h", "T");
              English.Add("i", "├");
              English.Add("j", "e");
              English.Add("k", "ƒ");
              English.Add("l", "!");
              English.Add("m", "á");
              English.Add("n", "┤");
              English.Add("o", "‗");
              English.Add("p", "8");
              English.Add("q", "Ì");
              English.Add("r", "*");
              English.Add("s", "&");
              English.Add("t", "^");
              English.Add("u", "%");
              English.Add("v", "$");
              English.Add("w", "#");
              English.Add("x", "@");
              English.Add("y", "(");
              English.Add("z", "╣");
              English.Add(" ", " ");
              for (int i = 0; i < textBox1.Text.Length; i++)
              {
                  string MyChar = textBox1.Text[i].ToString().ToLower();
                  textBox2.Text += English[MyChar];
              }
          }

  Output:

  
  Best regards 

  Cathy

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