c++

[Solved] c# How to show the total of values in a column in a listview? [closed]

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Hi Mario to get your values in 1 column try this…i used a simple list this will put values in first column List<string> lst = new List<string>(); lst.AddRange(new string[]{“one”,”two”,”three”,”four”}); foreach(var value in lst) { listView1.Items.Add(value); } if you want to put it in any other column try this List<string> lst = new List<string>(); lst.AddRange(new string[] … Read more

[Solved] In sqlite I would do, But how in mongodb c#

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You can get some inspiration for updating a document in the quick-tour documentation provided on the MongoDB site: http://mongodb.github.io/mongo-csharp-driver/2.5/getting_started/quick_tour/ Just look at the Updating Document section. But to save a click you can use the following code as an inspiration: // Setup the connection to the database var client = new MongoClient(“mongodb://localhost”); var database = … Read more

[Solved] C# Random number unique first number

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Generally, I don’t think there is any requirement that pseudorandom generators should generate unique numbers given unique seeds. The only think it happens is that, given a seed, the generator will always generate the same number sequence (obtained by calling multiple times the next method) and the sequence will repeat at some point. However, the … Read more

[Solved] #define to include header file c++

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#include “header.h” This is replaced by the compiler with the code of header.h. #define header This just defines a ‘mark’ (not sure how to call it). It can be used in some code like that #ifdef header puts(“It is defined!”); #else puts(“Oh no!”); #endif The underscores can be used in a variable’s names and also … Read more

[Solved] Garbage values are getting assigned

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Both global variables op and result need to be reset for each iteration of while loop. while(arr_value[vali]!=1000) { //Set global x value x=arr_value[vali]; //Solve expression //Print result solveExpression(expression,80,x) ; printf(“\n result %d\n”, result); //Next Value vali++; result=0; op=’\0′; // add this line to reset global variable } solved Garbage values are getting assigned

[Solved] Declaring C# variable with and without Constructor

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First one you are only declaring and in second you declaring and initializing. If you use any instance of a class without initializing, then you will get null reference exception as Object reference not set to an instance of an object solved Declaring C# variable with and without Constructor

[Solved] expected a “;” on strange place

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You should move MouseHookProc definition outside of main. C++ does not allow function definitions inside of other functions. Among other things, (LPTHREAD_START_ROUTINE)clicker is also wrong, there is no need to perform cast here, instead clicker function must have correct signature, void down(); is actually a function declaration, not invocation. 2 solved expected a “;” on … Read more

[Solved] Recursive function:What is the difference between C++ and Python?

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The C++ code doesn’t work perfectly. It’s undefined behavior and everything can happen. That includes working, just suddenly stopping to work tomorrow, or on Christmas eve and delete all your files… C++ standard draft n4527 (6.6.3/2 [stmt.return]): The expression or braced-init-list of a return statement is called its operand. A return statement with no operand … Read more

[Solved] How to replace the string inside { } with new value [closed]

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If you could use a different string for your template, something like this would work: string formattedText = string.Format( “{0} has deviated from GeoFence at {1} in {2}”, vehicleno, dt.ToString(“MM/dd/yyyy”), location); Alternatively, you could chain together Replace() calls using your template: string formattedText = s.Replace(“{Vehicle No}”, vehicleno).Replace(…).Replace(…); 1 solved How to replace the string inside … Read more