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Make the right condition with LINQ

A
Avante last edited by
There's an OBD in one table where 3 fields: ID, English word, translation.
For one of the purposes, I'm counting only verbs with that expression. All the verbs start with the "To" part.
```
words = wordsfromDB.Where(w => w.EnglishWord.StartsWith("To")).ToList();
```
Now I want to realize the possibility of counting only phrase verbs, I mean, "To give" doesn't count, and "To give up" counts.
I mean, he has to count all the records that start on "To" and that Have at least three words.
Help me make the right condition.
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terrea last edited by
Don't use regular expressions without special need. There's an operator in both pure SQL and LINQ to SQL for such requests. LIKEwhich also allows for the selection of text boxes:
```
words = wordsfromDB.Where(w => SqlMethods.Like(w.EnglishWord, "To % up")).ToList();
```
It's done in order faster than the SQL's "bones" with regular expressions.
In fact, the task is to look at a full-text search. There are both extended text requests and gramatic-collar kernels, not just English.
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Understand that your methods have different purposes, so it would be interesting to separate the responsibilities as follows:getAlunosByEscola Method to return the school student list, making an INNER JOIN with the table that stores the information from which school the director is linked.getAlunosByTurma Method to return the list of students from the classes of the teacher, making an INNER JOIN with the table that stores the information from which class the teacher is linked. You can also set unique profile permissions for your methods using the @PreAuthorized staying as follows:@PreAuthorize("hasRole('DIRETOR')") public List<Alunos> getAlunosByEscola(Map<String, Object> params, int offset, int size); @PreAuthorize("hasRole('DIRETOR') AND hasRole('PROFESSOR')") public List<Alunos> getAlunosByTurma(Map<String, Object> params, int offset, int size); But, if your architecture does not allow, another solution that you can try to address, would be to pass on your list of parameters some way to change the vineyard, that is, to make a different INNER JOIN according to the list received.Hug.Source: http://websystique.com/spring-security/spring-security-4-method-security-using-preauthorize-postauthorize-secured-el/
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How do you make a sql request with a condition?
Software Programming • mysql sql update • • obi

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update these two columns in the last table - RaharasomahaUPDATE logs SET e_date = %s, duration = %s ORDER BY e_date DESC LIMIT 1
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C# Size line
Software Programming • c sharp liabilities encoding ascii • • Kadir

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https://ru.wikipedia.org/wiki/Windows-1251 - single-bite code. Consequently, in the final set, each byte will match one row symbol with the same index. So you can first put the whole line into the bayt in this code and then irradiated by the mass, get the symbol codes.var str = "Привет"; byte[] bytes = Encoding.GetEncoding(1251).GetBytes(str); for (int i = 0; i < bytes.Length; i++) Console.WriteLine(str[i] + " - " + bytes[i]);
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How, under certain conditions, do not make a difference when the php is declared?
Software Programming • php yii2 yii • • rosemadder

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Obviously not.
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Save date value in SQL on en-US server
Software Programming • c sharp sql server • • juvenalb

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By over the 12th day, he makes you mistake, it's because in that field he belongs to you. mes. Below is an example to understand better:string fecha = "10/22/2016"; // 22 Octubre 2016 Console.WriteLine("Fecha ingresada: "+fecha); DateTime fechaFormateada = DateTime.ParseExact(fecha, "MM/dd/yyyy", null); Console.WriteLine("Fecha con formato: "+fechaFormateada); // 2016-10-22 12:00:00 AM Console.WriteLine("Fecha con formato corto: "+fechaFormateada.ToShortDateString()); // 2016-10-22 Console.WriteLine("Dia: " + fechaFormateada.Day); //22 Console.WriteLine("Mes: " + fechaFormateada.Month); //10 Console.WriteLine("Anio: " + fechaFormateada.Year);//2016 Console.ReadLine(); Generating as a result:Fecha ingresada: 10/22/2016 Fecha con formato: 10/22/2016 12:00:00 AM Fecha con formato corto: 10/22/2016 Dia: 22 Mes: 10 Anio: 2016 In the third line where the format is defined as "MM/dd/yyyy" It's for the format you use. For more information, check: https://msdn.microsoft.com/en-us/library/8kb3ddd4(v=vs.110).aspx
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How do you make the request for the table right?
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SELECT pa.product_id FROM product_attribute pa INNER JOIN ( SELECT product_id ,COUNT(*) Num FROM product_attribute GROUP BY product_id ) T ON T.product_id = pa.product_id WHERE attribute_id IN (12, 17) GROUP BY pa.product_id HAVING COUNT(*) = MAX(T.Num)
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I can't make the right request for SQL.
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SELECT products.id, products.name, products.image, AVG(reviews.rating) AS avg_rating FROM reviews JOIN products ON product_id=products.id WHERE products.id=$id
How do you make True and False non-active buttons on condition?
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After answering the question, take them. .setEnabled(false)and after the NEXT - .setEnabled(true):private void checkAnswer(boolean userPressedTrue) { mFalseButton.setEnabled(false); mTrueButton.setEnabled(false); ... } next:private void updateQuestion(){ mFalseButton.setEnabled(true); mTrueButton.setEnabled(true); ... } Actually, look, there's a lot of examples on the Internet that "right" write victorines.
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Cursor does not go after my variable and the code does not work on C#
Software Programming • c sharp • • jonetta

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How much for each price you can validate your entry:private static double LeerPrecio(string title) { while (true) { Console.WriteLine(title); string userInput = Console.ReadLine(); double result; if (double.TryParse(userInput, NumberStyles.Any, CultureInfo.InvariantCulture, out result)) { return result; } Console.WriteLine("Debe escribir un precio, ejemplo: 5, 5.0."); } } /// de tu solicitud solo cambias manzana= LeerPrecio("Escriba el costo de la manzana por kilo:"); //aqui los demas productos.
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How is it right to make a linq request out of theud?
Software Programming • c sharp sql entity framework core ef core 3.1 • • nishika

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For LINQ to Entities, there is still an unbreakable restriction - after group by Only the key of the grouping or the result of the aggregation can be delivered. In your case, you want an entire object.This is due to the restriction of SQL itself. If you need such a request, you need to use the net SQL and the final functions. The final functions are not supported by any EF versions.But, just in case, I'll leave an extension for EF Core. https://github.com/linq2db/linq2db.EntityFrameworkCore - Use version 3. XExpansion uses LINQ from linq2db and has no restrictions on EF Core. I warn you, I'm the creator of this expansion.var rnQuery = from t in dbContext.TrainingObjects select new { RN = Sql.Ext.RowNumber().Over() .PartitionBy(t.ApplicationUserId) .OrderByDesc(t.Index) .ToValue(), tr = t, user = t.UserDetails.ApplicationUser }; var resultQuery = from q in rnQuery where q.RN == 1 select new { q.tr, q.user }; var result = resultQuery .ToLinqToDB() .ToList();
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C#. Thread.CurrentThread.IsBackground
Software Programming • c sharp multi point task • • Anderson

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On the first part of the question, I think it's a lack of documentation. The documentation says what happens when completed Basic, non-fund flow, but nothing is said about a case where the flow simply ceases to be the main flow without ending. I didn't find any reference to it. https://msdn.microsoft.com/en-us/library/system.threading.thread.isbackground(v=vs.110).aspx No https://github.com/dotnet/csharplang/blob/master/spec/basic-concepts.md#application-termination ♪Regarding the second part of the question:Thread is a physical (except in very extreme private cases) discharge flow that is directly consistent with operating system flows. The Task is the abstraction of an assignment that will ever be completed and the code may run in one or more, sometimes even in zero flows.For the use you've brought, the difference is effects Insignificant: The Task, as it appears in your question code, is carried out on the flow of the flow pool and Thread is created outside the pool. But there's a difference. Use♪For Thread, you can only call Joinand wait for it to be finished.For the Task Force, you may also establish continuation by ContinueWithto be completed in the future, at the end of this Task. Besides, you can wait for the end of the Task'a. asynchronoususing await♪ You can outside capture and process the exception that occurred in the implementation of the Task'a. It's all Thread.
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How to make condition with numero msql
Software Programming • php mysqli databank • • emerson

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EXPLICAL FORMASimple, just validate before UPDATE, about the value informed by the user. More or less like this:Start of your PHP code placed on the question$id = $_POST['id']; $dinheiro = $_POST['dinheiro']; $_SESSION['id'] = $id; //$_SESSION['dinheiro'] = $dinheiro; deixa essa parte para depois de validar Validation (Solution)// faz a busca pelas informações do usuário que irá fazer a transferência $consulta = "SELECT * FROM 'usuarios' WHERE id = '".$_SESSION['usuarioId'] ."'"; $result = mysqli_query($conn, $consulta); $rows = mysqli_fetch_assoc($result); // verifica se o dinheiro que ele informou para o deposito é maior // do que o valor que ele possui em banco // EDIT: Tinha esquecido do ";" if ($dinheiro > $rows['dinheiro']) $dinheiro = $rows['dinheiro']; With the condition, if it passes a higher value than it possesses, the value will be changed to the maximum value it has (which is registered in the bank). After doing this validation, there you can save the value of the money in the session:$_SESSION['dinheiro'] = $dinheiro; End of your PHP code placed on the question$recebe_dados1 = "UPDATE usuarios SET dinheiro = dinheiro -'$dinheiro' WHERE id = '".$_SESSION['usuarioId'] ."'"; $recebe_dados2 = "UPDATE usuarios SET dinheiro = dinheiro +'$dinheiro' WHERE id = $id"; $recebe_dados3 = "UPDATE usuarios SET depositado = depositado +'$dinheiro' WHERE id = '". $_SESSION['usuarioId'] ."'"; ♪$id = $_POST['id']; $dinheiro = $_POST['dinheiro']; $_SESSION['id'] = $id; //$_SESSION['dinheiro'] = $dinheiro; deixa essa parte para depois de validar // faz a busca pelas informações do usuário que irá fazer a transferência $consulta = "SELECT * FROM 'usuarios' WHERE id = '".$_SESSION['usuarioId'] ."'"; $result = mysqli_query($conn, $consulta); $rows = mysqli_fetch_assoc($result); // verifica se o dinheiro que ele informou para o deposito é maior // do que o valor que ele possui em banco // EDIT: Tinha esquecido do ";" if ($dinheiro > $rows['dinheiro']) $dinheiro = $rows['dinheiro']; $_SESSION['dinheiro'] = $dinheiro; $recebe_dados1 = "UPDATE usuarios SET dinheiro = dinheiro -'$dinheiro' WHERE id = '".$_SESSION['usuarioId'] ."'"; $recebe_dados2 = "UPDATE usuarios SET dinheiro = dinheiro +'$dinheiro' WHERE id = $id"; $recebe_dados3 = "UPDATE usuarios SET depositado = depositado +'$dinheiro' WHERE id = '". $_SESSION['usuarioId'] ."'";
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Sympy can't see IronPython 2.7.5
Software Programming • c sharp sympy ironpython • • jonetta

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I tried to reproduce and got the same result. A real deal of what's not the reason, maybe you have another architecture. That's why it was "older."Got it. http://ironpython.net Gathered from the source. http://mpmath.org Gathered from the source. http://www.sympy.org/en/index.html Example:Established a draft console applicationAdded NuGet, package: Install-Package IronPythonTransferred https://stackoverflow.com/questions/6721736/c-sharp-library-for-algebra-simplification-and-solving from the SO question on your F# referenceopen IronPython.Hosting let options = ["FullFrames", true :> obj] |> dict let engine = Python.CreateEngine options let paths = engine.GetSearchPaths() paths.Add @"C:\Program Files (x86)\IronPython 2.7\Lib" engine.SetSearchPaths paths // expression to simplify let expr = "0 + 1 * 1 * (x - 2) / (1 - 2) * (x - 3) / (1 - 3) * (x - 4) / (1 - 4)"; let scope = engine.CreateScope() let script = engine.CreateScriptSourceFromString(@" import codecs def my_unicode_escape_decode(x): return x codecs.unicode_escape_decode = my_unicode_escape_decode from sympy import * import clr from System import String expr = simplify('" + expr + @"') result = clr.Convert(expr, String) ") script.Execute scope |> ignore scope.GetVariable "result" |> printfn "%A" I had to change the code to get him to work, but maybe you'll have a Piton swallowed the original version.Your collection. paths It may be different - for convenience, I collated the designated libraries where IronPython is located.If there's any exceptions, ping me in. http://chat.stackexchange.com/rooms/50036/f
Generation ip from range. Less resource-intensive
Software Programming • c sharp • • Laycee

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There's no place to waste resources. But your example generates 256^3I mean, about 17 million addresses.Maybe don't come back. List♪ IEnumerable? Through yield return♪ Savings of memory 100 per cent:)I mean, it's...public static IEnumerable<IPAddress> IPAddressesRange(IPAddress firstIPAddress, IPAddress lastIPAddress) { var firstIPAddressAsBytesArray = firstIPAddress.GetAddressBytes(); var lastIPAddressAsBytesArray = lastIPAddress.GetAddressBytes(); Array.Reverse(firstIPAddressAsBytesArray); Array.Reverse(lastIPAddressAsBytesArray); var firstIPAddressAsUInt = BitConverter.ToUInt32(firstIPAddressAsBytesArray, 0); var lastIPAddressAsUInt = BitConverter.ToUInt32(lastIPAddressAsBytesArray, 0); for (var i = firstIPAddressAsUInt; i <= lastIPAddressAsUInt; i++) { var bytes = BitConverter.GetBytes(i); Array.Reverse(bytes); var newIp = new IPAddress(bytes); yield return newIp; } }
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How to make the button right after the label of any length
Software Programming • c sharp winforms • • Kadir

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We can use a way that is common in most GUI-Freimvors. We put counters in the base, like the net. And we're building an automatic change in size and substrate.using System.Windows.Forms; namespace WinForms { public partial class Form1 : Form { private Button button; private Label label; private TextBox textBox; private TableLayoutPanel tableLayoutPanel; public Form1() { //InitializeComponent(); textBox = new TextBox { Parent = this, Top = 50 }; tableLayoutPanel = new TableLayoutPanel { Parent = this, ColumnCount = 2, RowCount = 1, AutoSize = true, AutoSizeMode = AutoSizeMode.GrowAndShrink }; label = new Label { Parent = tableLayoutPanel, AutoSize = true, Margin = new Padding(0, 5, 0, 0), }; button = new Button { Parent = tableLayoutPanel, Left = label.Right, Margin = new Padding(0) }; label.DataBindings.Add(nameof(Label.Text), textBox, nameof(TextBox.Text)); } } } There's a TableLayoutPanel, it's in Label and Button. TableLayoutPanel has two columns and one line. Automatic change in size.Label, too, with automatic size changes. When it is extended or compressed, it changes the width of the TableLayoutPanel column, and the second column button is also moving.Useful reference: https://docs.microsoft.com/en-us/dotnet/framework/winforms/controls/walkthrough-arranging-controls-on-windows-forms-using-a-tablelayoutpanel ♪ And on the left of the menu, watch references.

Make the right condition with LINQ

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