I want a method that tells me the text length is same as Compared text

Question

Hello, I need help to make sure this method will tell me the comparision is the same in length: Here's what I have : private bool Matched(string Target, string text){ return text.ToLower().Trim().Length.Equals(Target.ToLower().Trim().Length); } Do correct me if there is a mistake. I'd also like to know if I didn't put in the Length will it affect the evaluation ?

Rajanikant Hawaldar · Answer

what you want to return? please tell us clearly everything with descriptive.

Tangara G · Answer

Hi Rajan, My apologies but now I have a problem and I am not sure what is wrong with the way it is written: public bool (string a, string b) { if (!bool method) { return false; } else if (bool method == true) && (a == b) { return false; } else if (bool method -== true) && (!a == b){ return false; } else if(bool method == true) && (a .ToLower().Trim().Equals(Target.Trim()){ return true; } return true; } Is there anything wrong with this method cos I can't get the test right? And I wonder if we can use while bool method == true and then put a break if it is false for both conditions to make the method more efficient? What is your view on this?

Rajanikant Hawaldar · Answer

@Tangara G, Yes you can, private bool Match(String a, String b) { if ( bool method) { // write your code here return true ; } else { // write your code here return false ; } }

Tangara G · Answer

Hi Rajan, Just to be clear, I want something like bool Match(String a, String b) { if(bool method) //then carry out and then follows by the String comparision in terms of length and also if it is the same word ignoring casing. So the final end is true right for this case? Will I need to put a return a false some where ? cos the whole flow is that if everything matches including the bool method is confirmed to be true then it will return true ultimately. If one par of it it will return false, it doesn't have to spell out explicity right?

Rajanikant Hawaldar · Answer

You can call one or more methods inside method

Tangara G · Answer

Hi Rajan, Fogive me but I was really blurred when it comes to if else statement. Now, I know that you can't have something that return true right away if there is other condition. My next question is : if I embed a bool method inside this existing method will it cause any problem ? I mean should I use while or ? private static bool Matched( string Target, string text) put another bool method here to check if it passed before those other conditions should I use while inside?

Tangara G · Answer

Hi Rajanikant, Can I know why the last part will return true or false? If I removed all the conditional statement and only left with return say isTextMatched = text.ToLower().Trim().Equals(Target.ToLower().Trim()); Will it return true or false if is supposed to be true. But, I read that bool default is false so I am really confused.

Rajanikant Hawaldar · Answer

Hello Tangara G, modified jignesh code and still you can modify it as per your requirement. private static bool Matched( string Target, string text) { // use below as required. // IsNullOrEmpty : Checks null and empty // IsNullOrWhiteSpace : Checks null, empty and whitespace if ( string .IsNullOrEmpty(Target)) // IsNullOrWhiteSpace { throw new ArgumentNullException( " '" + Target + "' is null or empty" ); //return false; } else if ( string .IsNullOrEmpty(text)) { throw new ArgumentNullException( " '" + text + "' is null or empty" ); //return false; } else if ( string .IsNullOrEmpty(Target) && string .IsNullOrEmpty(text)) { throw new ArgumentNullException( " '" + Target + "' and '" + text + "' is null or empty" ); //return false; } else { // Created isTextMatched and isLengthMatched for code readability. // Trims text and checks text equality bool isTextMatched = text.ToLower().Trim().Equals(Target.ToLower().Trim()); // Trims text and checks text length equality bool isLengthMatched = text.ToLower().Trim().Length.Equals(Target.ToLower().Trim().Length); return isTextMatched && isLengthMatched; // this returns true / false. } }

Tangara G · Answer

ok. But, what if I want to throw in checking if the string is empty or none and it must not be empty or null into the mix ? How do I write a method or function that contains all that ?

Jignesh Kumar · Answer

Hi, If you want to compare only string lenght then you method code is perfect and will give correct output.

Nisha Regil · Answer

Please try this reference link. https://www.tutorialsteacher.com/articles/compare-strings-in-csharp. Hope this would be useful.

Tangara G · Answer

Hi Jignesh, I would like to clarify your 3rd point : // bool check = Program.Matched("ABC", "xyz"); //This will return true because we are only comparing string length not both strings What do you mean by not comparing both strings in terms of length? I need the length to be the same, so do I need to add in the .Length ? and preferably by adding .Length inside the exisiting method...if it's possible.

Tangara G · Answer

Hi Nisha, It is not just the length I am comparing, it is also the entire text that I am comparing and also if there is spacing, then I got to trim it because I am comparing against a specific text that is varying in length and may changes in the future. I hope the above gives you a more clearer picture what I am looking for in a method. At this point, I am not sure without putting in the .Length it will simply just compares the no of characters in the string.

Jignesh Kumar · Answer

Hi, in above example you are comparing to string lenfth only so if you want to compare string then you should remove length. Lets check with length and response for two different strings. private static bool Matched( string Target, string text) { return text.ToLower().Trim().Length.Equals(Target.ToLower().Trim().Length); } // bool check = Program.Matched("ABC", "abc"); //Above will return true // bool check = Program.Matched("ABC", "abc "); //above will return true as we are using trim() method // bool check = Program.Matched("ABC", "xyz"); //This will return true because we are only comparing string length not both strings Now lets check without .Length private static bool Matched( string Target, string text) { return text.ToLower().Trim().Equals(Target.ToLower().Trim()); } // bool check = Program.Matched("ABC", "abc"); //Above will return true // bool check = Program.Matched("ABC", "abc "); //above will return true as we are using trim() method // bool check = Program.Matched("ABC", "xyz"); //This will return false because we are only comparing string not length of string Hope it will help you to understand both usage.

Nisha Regil · Answer

Please refer links below https://stackoverflow.com/questions/42057956/comparing-string-lengths-in-c-sharp https://docs.microsoft.com/en-us/dotnet/csharp/how-to/compare-strings You will not need to convert to toLower() to check Length.