Posts by Jéf Bueno • 67,331 points
1,254 posts
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answer33
viewsA: 'Game.Server.Gameobjects.Gameplayer' does not implement interface Member 'Game.Logic.Igameplayer.Addprestige(bool)'
The problem is the method signature AddPrestige, interface has only one parameter boolean and its implementation of the method takes two parameters, a boolean and a eRoomType. You need to make your…
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answers3339
viewsA: Save image in directory without Savefiledialog
As long as Picturebox contains a valid image, you can recover it using the property Image of the component and save it using the method Image.Save() private void SalvarImagem() {…
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answer2514
viewsA: Access to the shipment file boleto . NET
You are the one who generates the shipment file, at the time of generating it is set sets the path that will save the file. See the example of a complete shipment file generation (from Bradesco…
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answer34
viewsA: c# cmd if writing something else shows a msg
Just make one condition, simple string input = Console.ReadLine(); if (input == "tree") { Console.WriteLine("tree"); } else { Console.WriteLine("o que escreveu não foi reconhecido!"); }…
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answer2213
viewsA: C# When you open form 2 wait 5 seconds and open form 3
Particularly, I find it extremely unnecessary to use a timer for this type of operation. Use a timer when you want to repeat something within a certain time, or else for cases that need a little…
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answer131
viewsA: Customer entity type is not part of the model for the current context
Besides complicating much which is extremely simple (implement a second repository instead of working directly with EF), this tutorial is wrong. In the context, the DbSet with the model Cliente.…
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answer83
viewsA: In python, how can I simulate a read-only property in classes?
Declare a property getter-only, using the developer @property class IPInfo(object): def __init__(self, ip): self._ip = ip; @property def ip (self): return self._ip ip = IPInfo(object) ip.ip = 'aqui…
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answer198
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viewsA: Separate front-end and back-and from executable
You must make the project Main receive references of the other projects, hence the Main will can access all public items of other projects. Within the project Main, click on References and in Add…
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answers1425
viewsA: Nameerror: name 'ana' is not defined
It turns out that you are trying to execute code made for Python 3.* using Python 2.*. Swap input for raw_input that will work. You will probably need to change the comments to be able to use the…
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answer967
viewsA: Open or Form1 or form2 on winform program startup
Yes, this is completely possible. For this you can use the parameters in the method Main. How will you call the executable by the prompt, just do C: Algumapasta > nomenAplicacao.exe…
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answers934
viewsA: I can’t post with Webapi
The attribute Route should not be there. This attribute is used to set a route to a method, so it shouldn’t be applied in the class. Also, its value is wrong if you want your route to be…
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answers726
viewsA: How to identify a key in Textbox?
First you need to activate the KeyPreview in the Textbox parent control, just set the property to true. Then you need to use the event KeyDown of the Textbox. This event is triggered whenever a key…
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answers570
viewsA: cmd.Commandtype = Commandtype.Text - Pq use?
It turns out that the property pattern CommandType is the CommandType.Text. That’s why it works even without you explaining it. This does not mean that your command will work without it, it will…
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answer37
viewsA: Clean Form1 and add new things like the game maker’s Rooms system
You can simulate this using a Tabcontrol. Change the properties ItemSize and SizeMode tabcontrol tabControl.ItemSize = new Size(0, 1); tabControl.SizeMode = TabSizeMode.Fixed; You can also switch…
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answer77
viewsA: Set variable in form designer
First, you should not move the self-generated code by Visual Studio (basically, the method InitializeComponent that is in partial .Designer). If you open this partial you will see that in Summary of…
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answer804
viewsA: Statement from the Arraylist?
The two statements below have the same effect. List<String> lista = new ArrayList<String>(); ArrayList<String> lista2 = new ArrayList<String>(); The only difference is that…
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answer74
viewsA: Login Beanstalk API
I created an account at Beanstalk just so I could test this. There are two things wrong with your code: The requisition nay should be made about HTTPS (I know the example in the manual itself shows…
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answers449
viewsA: How to create summation with "sum" with multiple queryover columns
I can’t think of a "Nhibernate" way to do this. The solution would be to execute a pure query var query = "select C.prop1 + C.prop2 from Classe as C"; var sum =…
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answers394
viewsA: Is it possible to add string Connection within a class?
You can pass the connection directly as a parameter of SqlConnection, after all the return of ConfigurationManager.ConnectionStrings["Conexao"] is a simple string. This doesn’t seem like a good…
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answers3574
viewsA: What are the functions of an ORM?
The tag description itself already gives enough information about what a ORM is. What is? The acronym means Object-Relational Mapping, mapping relational object in free translation. It is a…
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answer1460
viewsA: Colorize line in datagridview c#
You will need to use the event CellFormating. private void dgvRequisicao_CellFormatting(object sender, DataGridViewCellFormattingEventArgs e) { valor = Convert.ToDouble((string)e.Value); if (valor…
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answers458
viewsA: How to convert Camelcase to snake_case in C#?
Just out of curiosity, you can do with regex too, but it’s a little slower string stringSnake = Regex.Replace(input, "(?<=.)([A-Z])", "_$0", RegexOptions.Compiled);…
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answers1131
viewsA: How does the (anti-)EAV (Entity Attribute Value) standard work?
The name itself is quite explanatory. This standard serves to bring a certain dynamicity in the structure of the data that will be saved in the database. As you well know, usually a table is created…
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viewsA: User Control C#
Turns out you’re asking for an instance of Control in its method, even if its object is of a type derived from it the received instance will be of Control. You just need to convert this object to…
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answers120
viewsA: What is the syntax of literal objects in Javascript?
That is the creation of an object with the properties teste1, teste2 and teste3. What you have on the left side is the property identifier, on the right side is the value. It’s the same thing as…
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answers4980
viewsA: How to determine the last element of a list in a foreach?
There are some cases where using the method Last can end up causing an iteration across the entire collection, for example, when the collection is the result of a Linq query. This would make the…
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answers188
viewsA: Get information from multiple files in one directory
Use Files.Walk and a repeat loop. See: Files.walk(Paths.get("C:\\teste2")).forEach(path -> { if (Files.isRegularFile(filePath)) { BasicFileAttributes attributes = Files.readAttributes(path,…
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answers331
viewsA: Reading HTML pages with . NET Core
You’ll have to use the new class HttpClient in System.Net.Http, that is available no Nuget. A very simple example of how to use: using(var client = new HttpClient()) { var response = await…
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viewsA: Is there a C# feature similar to PHP __call?
As far as I know, it doesn’t exist. For the simple fact that C# is completely different from PHP. If you try to call a method that does not exist in C#, the application will not compile and ready.…
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viewsA: Read all txt files in a folder
Simple, using the method getFileName of Path. Like the Files.Walk returns a collection of Path's, logo the object filePath within the forEach is an instance of Path.…
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answers837
viewsA: How to get the creation date of a file that is on an FTP server c#
First, you don’t need an extra component to do the operations listed in the pho3nix, it is possible to do everything with the . "pure" NET, even more a simple operation like the one you want. What’s…
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answers145
viewsA: dataGridView1_CellDoubleClick does not work!
His answer solves the "problem", but does not clarify anything. For knowledge purposes, I’ll try to explain to you what happens very briefly (well, it’s a little longer than I imagined). When you…
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answer92
viewsA: Migrations error c# MVC
Why was that name left? It was to be Moves This is because dbo is schema SQL Server default. You can change this using the attribute Table in your class. Ex.: [Table("test.Movimentacoes")] public…
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answer324
viewsA: Failure in Powershell, it cannot be initialized, file blocked by software restriction policies, how to fix?
The standard Powershell execution policy is a bit restrictive even, you can see which restriction policy is active with cmdlet Get-ExecutionPolicy And you can use the cmdlet Set-ExecutionPolicy to…
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answer96
viewsA: Insert an array into a Key Json
Yes, it is possible. In class GetClienteBO, change public Email emails { get; set; } public Telefones telefone { get; set; } for public List<Email> emails { get; set; } public…
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answers2607
viewsA: Mysqldb - insert value of a variable in the database
You need to pass the values of the variables within the Insert. By doing this VALUES (id, idade, nome, email) you are passing the literals (id, idade, nome, email) and not the values of the…
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answer53
viewsA: Comboboxes that share the same Datasource, swap the selection together
It turns out that the ComboBox ends up creating (even without the real intention of the programmer) BindingContext for both of us ComboBoxes, since you are using the same object as DataSource. To…
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answer2685
viewsA: C# Convert object to an unknown list of objects
Your premise is somewhat wrong. Even though you have an instance object there is how to know the 'truth' type of this object. At least in C#, all inheritance works this way: the "top-of-the-layer"…
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answers258
viewsA: How to compare with Guid Mvc
You just need to compare the property with Guid.Empty Ex.: cliente.ClienteGuid == Guid.Empty; About the code presented: This second if, is not necessary, this way it will even work, but will bring…
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answer193
viewsA: Typing in the Textbox
You can use the event Enter of MaskedTextBox that will be triggered whenever the user clicks on the component and inside it uses the method Select, in this way: In the method below, it is also…
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answers563
viewsQ: Prompt Expression<Func<T, bool>> via parameter using object that is in a foreach
I have a model called Entity, this model has links (1 - N) with three other models. public class Entity { // Outras propriedades removidas para brevidade public virtual List<SpecificInfo>…
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answer70
viewsA: Get BD (Mysql) Rows - Webservice Mysql C#
Missed passing the value of the parameter @Login to the query. Would that way: cmdMySQL.CommandText = "select * from core_members where `email` = @Login"; cmdMySQL.Parameters.AddWithValue("@Login",…
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answer288
viewsA: Error using Entity Framework Bulkinsert
It turns out that Bulkinsert only works with Databasefirst if you are using Entityframework 6. You can confirm this at package Codeplex page. At Stackoverflow, there’s a question [from two years…
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answers5129
viewsA: What is the difference between using single and double quotes in C#?
Unlike PHP, in C#, they represent two different types. Single quotes are used to define a single character (type char). Double quotes serve to delimit a string (which is an immutable collection of…
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viewsQ: Is it possible to process data receipt in Camel Casing using Odata?
In the method Register class WebApiConfig i have configured a CamelCasePropertyNamesContractResolver public static void Register(HttpConfiguration config) { //Resto do código removido para brevidade…
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viewsA: Is it possible to create Webapi without the MVC structure?
[...] using VS2015, to create an API, it forces me to create the entire MVC structure together. No, he doesn’t make you do it. What happens is that you’re creating a project that already has a basic…