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  4. smart way to detect if System.Boolean true or false

smart way to detect if System.Boolean true or false

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csharp
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  • M musefan

    :laugh: haha, what a joke! You could make this so much simpler by just having...

    PDFIncludeWatermark_ = value.ToString().ToLowerInvarient().Contains("true") ? "true" : "false";

    I may or may not be responsible for my own actions

    V Offline
    V Offline
    Vladimir Svyatski
    wrote on last edited by
    #7

    I like your way of thinking... :laugh: Good optimization, you know.

    1 Reply Last reply
    0
    • L Luc Pattyn

      Contains!=Equals :~

      Luc Pattyn [Forum Guidelines] [My Articles] Nil Volentibus Arduum

      Please use <PRE> tags for code snippets, they preserve indentation, improve readability, and make me actually look at the code.

      A Offline
      A Offline
      AspDotNetDev
      wrote on last edited by
      #8

      Surely you mean: !Equals.Contains(Contains)

      [WikiLeaks Cablegate Cables]

      1 Reply Last reply
      0
      • V Vladimir Svyatski

        I've just found an "excellent" way to detect if boolean value is true or not in C#. Just great! Important, "value" variable is System.Boolean.

                    string valueStr = value.ToString();
                    if (valueStr.Equals("true", StringComparison.CurrentCultureIgnoreCase))
                    {
                        PDFIncludeWatermark\_ = "true";
                    }
                    else
                    {
                        PDFIncludeWatermark\_ = "false";
                    }
        
        OriginalGriffO Offline
        OriginalGriffO Offline
        OriginalGriff
        wrote on last edited by
        #9

        I'm not sure I trust computers that much. Can I suggest an improvement?

                    string valueStr = value.ToString();
                    if (valueStr.Equals("true", StringComparison.CurrentCultureIgnoreCase))
                    {
                        PDFIncludeWatermark\_ = "true";
                    }
                    else if (valueStr.Equals("false", StringComparison.CurrentCultureIgnoreCase))
                    {
                        PDFIncludeWatermark\_ = "false";
                    }
                    else
                    {
                        PDFIncludeWatermark\_ = "maybe";
                    }
        

        Real men don't use instructions. They are only the manufacturers opinion on how to put the thing together. Manfred R. Bihy: "Looks as if OP is learning resistant."

        "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
        "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt

        V T 2 Replies Last reply
        0
        • OriginalGriffO OriginalGriff

          I'm not sure I trust computers that much. Can I suggest an improvement?

                      string valueStr = value.ToString();
                      if (valueStr.Equals("true", StringComparison.CurrentCultureIgnoreCase))
                      {
                          PDFIncludeWatermark\_ = "true";
                      }
                      else if (valueStr.Equals("false", StringComparison.CurrentCultureIgnoreCase))
                      {
                          PDFIncludeWatermark\_ = "false";
                      }
                      else
                      {
                          PDFIncludeWatermark\_ = "maybe";
                      }
          

          Real men don't use instructions. They are only the manufacturers opinion on how to put the thing together. Manfred R. Bihy: "Looks as if OP is learning resistant."

          V Offline
          V Offline
          Vladimir Svyatski
          wrote on last edited by
          #10

          You're right, never, never rely on compiler. Damn machines :) If you need a job done, do it yourself.

          OriginalGriffO 1 Reply Last reply
          0
          • V Vladimir Svyatski

            You're right, never, never rely on compiler. Damn machines :) If you need a job done, do it yourself.

            OriginalGriffO Offline
            OriginalGriffO Offline
            OriginalGriff
            wrote on last edited by
            #11

            Oh, I trust the compiler. It's reality I don't trust.:~

            Real men don't use instructions. They are only the manufacturers opinion on how to put the thing together. Manfred R. Bihy: "Looks as if OP is learning resistant."

            "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
            "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt

            1 Reply Last reply
            0
            • V Vladimir Svyatski

              I've just found an "excellent" way to detect if boolean value is true or not in C#. Just great! Important, "value" variable is System.Boolean.

                          string valueStr = value.ToString();
                          if (valueStr.Equals("true", StringComparison.CurrentCultureIgnoreCase))
                          {
                              PDFIncludeWatermark\_ = "true";
                          }
                          else
                          {
                              PDFIncludeWatermark\_ = "false";
                          }
              
              B Offline
              B Offline
              Bernhard Hiller
              wrote on last edited by
              #12

              Happy debugging! Internationalization will make you happy. I experienced that a long time ago. See also my message in the Hall of Shame: http://www.codeproject.com/feature/HallOfSHame.aspx?msg=3432553#xx3432553xx[^]

              1 Reply Last reply
              0
              • OriginalGriffO OriginalGriff

                I'm not sure I trust computers that much. Can I suggest an improvement?

                            string valueStr = value.ToString();
                            if (valueStr.Equals("true", StringComparison.CurrentCultureIgnoreCase))
                            {
                                PDFIncludeWatermark\_ = "true";
                            }
                            else if (valueStr.Equals("false", StringComparison.CurrentCultureIgnoreCase))
                            {
                                PDFIncludeWatermark\_ = "false";
                            }
                            else
                            {
                                PDFIncludeWatermark\_ = "maybe";
                            }
                

                Real men don't use instructions. They are only the manufacturers opinion on how to put the thing together. Manfred R. Bihy: "Looks as if OP is learning resistant."

                T Offline
                T Offline
                Tallmaris
                wrote on last edited by
                #13

                The else section should return "filenotfound" I believe! ;P

                else
                {
                PDFIncludeWatermark_ = "filenotfound";
                }

                FTFY :-D

                OriginalGriffO R 2 Replies Last reply
                0
                • T Tallmaris

                  The else section should return "filenotfound" I believe! ;P

                  else
                  {
                  PDFIncludeWatermark_ = "filenotfound";
                  }

                  FTFY :-D

                  OriginalGriffO Offline
                  OriginalGriffO Offline
                  OriginalGriff
                  wrote on last edited by
                  #14

                  I disagree: the concepts of truth and falsehood do not have anything to do with file systems! However, in the real world I doubt the existence of "absolute truth" and "absolute falsehood" so a "maybe" response seems reasonable... :laugh:

                  Real men don't use instructions. They are only the manufacturers opinion on how to put the thing together. Manfred R. Bihy: "Looks as if OP is learning resistant."

                  "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
                  "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt

                  T 1 Reply Last reply
                  0
                  • OriginalGriffO OriginalGriff

                    I disagree: the concepts of truth and falsehood do not have anything to do with file systems! However, in the real world I doubt the existence of "absolute truth" and "absolute falsehood" so a "maybe" response seems reasonable... :laugh:

                    Real men don't use instructions. They are only the manufacturers opinion on how to put the thing together. Manfred R. Bihy: "Looks as if OP is learning resistant."

                    T Offline
                    T Offline
                    Tallmaris
                    wrote on last edited by
                    #15

                    eheh, you are right. Anyway, I was just quoting one of the most famous WTF: http://thedailywtf.com/Articles/What_Is_Truth_0x3f_.aspx[^] :D

                    OriginalGriffO 1 Reply Last reply
                    0
                    • T Tallmaris

                      eheh, you are right. Anyway, I was just quoting one of the most famous WTF: http://thedailywtf.com/Articles/What_Is_Truth_0x3f_.aspx[^] :D

                      OriginalGriffO Offline
                      OriginalGriffO Offline
                      OriginalGriff
                      wrote on last edited by
                      #16

                      Not seen that before - thanks!

                      Real men don't use instructions. They are only the manufacturers opinion on how to put the thing together. Manfred R. Bihy: "Looks as if OP is learning resistant."

                      "I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
                      "Common sense is so rare these days, it should be classified as a super power" - Random T-shirt

                      1 Reply Last reply
                      0
                      • T Tallmaris

                        The else section should return "filenotfound" I believe! ;P

                        else
                        {
                        PDFIncludeWatermark_ = "filenotfound";
                        }

                        FTFY :-D

                        R Offline
                        R Offline
                        Rick Shaub
                        wrote on last edited by
                        #17

                        Dang! Beat me to it. Marking it as "news" is pretty hilarious.

                        1 Reply Last reply
                        0
                        • V Vladimir Svyatski

                          I've just found an "excellent" way to detect if boolean value is true or not in C#. Just great! Important, "value" variable is System.Boolean.

                                      string valueStr = value.ToString();
                                      if (valueStr.Equals("true", StringComparison.CurrentCultureIgnoreCase))
                                      {
                                          PDFIncludeWatermark\_ = "true";
                                      }
                                      else
                                      {
                                          PDFIncludeWatermark\_ = "false";
                                      }
                          
                          B Offline
                          B Offline
                          Baruch23
                          wrote on last edited by
                          #18

                          Dear VUnreal, Please find below a simplified code segment that may help you in achieving your code in one line using a helper class. please feel free to add additional checks and safeguards, and rewrite the helper as an extension to the string class.

                          string valueStr = value.ToString();
                          TruthChecker tc=new TruthChecker();
                          // now notice how simple: we do not use 'if', just call our helper once:
                          PDFIncludeWatermark_ = tc.CheckIfTrue();

                          class TruthChecker
                          {
                              private static List<string> \_truths = null; // static - optimaze time as the calculation is only done if needed and even so , only once!
                              List<string> Truths { get { return \_truths!=null ? \_truths : (\_truths = FindAllTruths() ); } }
                          
                              TruthChecker() {
                              }
                          
                              private static List<string> FindAllTruths() {
                                   List<string> allTruths = new List<string>();
                                   char\[\] t = {'t','r','u','e'};
                                   for(int i=0;i<Math.Pow(2,t.Length); i++) {
                                      StringBuilder sb = new StringBuilder();
                                      for(int j=0; j<t.Length; j++) {
                                          int k = (i>>j)&1;
                                          sb.Append(t\[j\]+('A'-'a')\*k);
                                      }
                                      allTruths.Add(sb.ToString());
                                  }
                                  return allTruths;
                              }
                          
                              public string CheckIfTrue(string tru)
                              {
                                  try {
                                      var v = 
                                          from t in Truths
                                          where t == tru
                                          select t;
                          
                                      if (v.ElementAt(0).ToString().Length == "true".Length) {
                                          return "true";
                                      }
                                  } catch (Exception ex) {
                                      tru = ex.Message;
                                  }
                                  return "false";
                              }
                          }
                          

                          Please visit IOCCC.org to learn more about useful coding techniques.

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                          • M musefan

                            :laugh: haha, what a joke! You could make this so much simpler by just having...

                            PDFIncludeWatermark_ = value.ToString().ToLowerInvarient().Contains("true") ? "true" : "false";

                            I may or may not be responsible for my own actions

                            R Offline
                            R Offline
                            R Erasmus
                            wrote on last edited by
                            #19

                            depends what type of programming style you're into. Some might find the mentioned method easier/simpler to read/understand.

                            "Program testing can be used to show the presence of bugs, but never to show their absence." << please vote!! >>

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