2024 C# field name to string

C# field name to string

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Web8 hours ago · Teams. Q&A for work. Connect and share knowledge within a single location that is structured and easy to search. Learn more about Teams WebShort answer is to add library System.Linq.Dynamic as a reference and do: string columnName = "Supplier"; var s1 = Suppliers .Where (String.Format (" {0} == \"abc\"", columnName)) .Select (new {c.id, c.supplier}; Following is a complete working example of Dynamic Linq, where column-name is a parameter: using System; using …

c# - Accessing a variable using a string containing the variable

WebDec 30, 2015 · 2 Answers. First thing - thing is a field, not a property. Another thing is that you have to change parameter type to get it working: public class Base { public string thing = "Thing"; public T GetAttribute ( string _name ) { return (T)typeof (Base).GetField ( _name ).GetValue (this, null); } } BTW - you can get property/field value by ... WebFeb 17, 2024 · string [] columnNames = dt.Columns.Cast () .Select (x => x.ColumnName) .ToArray (); or in LINQ Query syntax: string [] columnNames = (from dc in dt.Columns.Cast () select dc.ColumnName).ToArray (); Cast is required, because Columns is of type DataColumnCollection which is a IEnumerable, not … marco erba città d\\u0027argento

c# - Get DataRow if column names in a string array have …

WebNow call the static method from code: class MyClass { public int Field; public string Property { get; set; } } var fieldName = GetMemberName ( (MyClass c) => c.Field); var propertyName = GetMemberName ( (MyClass c) => c.Property); // fieldName has … WebApr 11, 2024 · C# String: C# StringBuilder: 1) It represents an immutable string.: It represents a mutable string.: 2) It is unmodifiable: It is modifiable and dynamic: 3) The … WebJul 6, 2010 · Generally there are two widely used ways to name fields (always using camelCase ): Using an underscore prefix void F (String someValue) { _someValue = someValue; } Using this. to access the field and avoid name conflicts void F (String someValue) { this.someValue = someValue; } cs scandal\u0027s

c# - How can I convert string value to object property name

WebOct 9, 2013 · string input = "foo"; //magic to convert string value to be used //as a object property name goes here maybe... var success = cover.foo; Is there a way in C# that I can do such a thing? Possibly using reflection? I've tried but I always am returned with an object that doesn't really solve my problem. c# .net string reflection Share WebSep 11, 2015 · To get the data from these tables: var columnDetails = from info in indexColumnsTable.AsEnumerable () select new { TableSchema = info ["table_schema"], TableName = info ["table_name"], ColumnName = info ["column_name"], ConstraintSchema = info ["constraint_schema"], ConstraintName = info … cssc annual dinnerWebAug 18, 2015 · c# - Call OrderBy () with a field name as a string - Stack Overflow Call OrderBy () with a field name as a string [duplicate] Ask Question Asked 7 years, 7 months ago Modified 7 years, 7 months ago … marco erpent

"WebFeb 25, 2013 · First of all, you are actually using the fields of the object. If you truly want writable properties, then you want something like this: PropertyInfo [] properties = … " - C# field name to string

C# field name to string

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WebSep 22, 2024 · To set the name of individual properties, use the [JsonPropertyName] attribute. Here's an example type to serialize and resulting JSON: public class … WebJan 26, 2024 · You'd have to use Reflection to access the variable by name. Like this: class Foo { int namedField = 1; string vari = "namedField" void AccessField () { int val = (int) GetType ().InvokeMember (vari, BindingFlags.Instance BindingFlags.NonPublic BindingFlags.GetField, null, this, null); // now you should have 1 in val. } } Share

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WebDec 2, 2009 · Say, public void addAttribute (object variable) { Attributes = new Dictionary (); Attributes.Add (variable.Name, variable.Value); }... I guess this is also possible to do with reflection, getting all the nullable properties and looping through them then adding each to the dictionary... But for as long as there are any other ways ... WebFinding the Variable Name passed to a Function in C#. The class below contains the field city. I need to dynamically determine the field's name as it is typed in the class declaration i.e. I need to get the string "city" from an instance of the object city.

WebThe name of the last user to modify the collector configuration in a Historian server. ... : All Language Filter: Multiple Language Filter: Visual Basic Language Filter: Visual Basic … WebJun 1, 2024 · I'm trying to get a DataRow from a dtResult datatable if column name in [colName] list has a matching value as [grbByValue] list. my goal in the below code is to get [test1] and [test2] return data... Stack Overflow. ... Converting string to byte array in C#. Hot Network Questions Electrostatics as the infrared limit of a "sea of photons"

WebDec 10, 2024 · GetField (String) Method. This method is used to search for the public field with the specified name. Syntax: public System.Reflection.FieldInfo GetField (string name); Here, it takes the string containing the name of the data field to get. Return Value: This method returns an object representing the public field with the specified name if ...

WebMar 14, 2024 · In this article. A nameof expression produces the name of a variable, type, or member as the string constant. A nameof expression is evaluated at compile time …

WebThe name of the last user to modify the enumerated set configuration in a Historian server. ... : All Language Filter: Multiple Language Filter: Visual Basic Language Filter: Visual … c sscanf函数的用法Webpublic class Car : Vehicle { public string Make { get; set; } } and. var car = new Car { Make="Ford" }; I want to write a method where I can pass in the property name and it would return the property value. ie: public string GetPropertyValue(string propertyName) { return the value of the property; } marco erbetta prestitiWebIn my application I am allowing string length upto 255 characters while entering in Database. What I need is I have a field called ... What I need is I have a field called … marco ertmanWebJun 20, 2012 · here is a code snippet along with the dictionary definition while (rdr.Read ()) { string step = rdr.GetString (rdr.GetOrdinal ("Step")); string tag = rdr.GetValue (rdr.GetOrdinal ("Tag")).ToString (); string value = rdr.GetValue (rdr.GetOrdinal ("Value")).ToString (); AddDataToWorkflow (step, tag, SearchDictionary (value)); } – … css canonicalWebOct 7, 2008 · 7 Answers Sorted by: 109 You can't use .GetType () without an instance because GetType is a method. You can get the name from the type though like this: typeof (Foo).Name And as pointed out by Chris, if you need the assembly qualified name you can use typeof (Foo).AssemblyQualifiedName Share Improve this answer Follow edited Sep … cs scanner appWebSep 22, 2024 · To use a custom JSON property naming policy, create a class that derives from JsonNamingPolicy and override the ConvertName method, as shown in the following example: C#. using System.Text.Json; namespace SystemTextJsonSamples { public class UpperCaseNamingPolicy : JsonNamingPolicy { public override string … marco ercolanoWebFeb 2, 2016 · I have an XML file, I have a node and I read all ChildNodes. The name of the childNode match to a variable I have to set with the value of this childNode. In the loop, I'd like set : myvar1 to MyValue1; myvar2 to MyValue2; The C# Code : protected string myvar1; protected string myvar2; The XML content look like this : marco e rosa rifugio