Is there a way to get a property with a variable?

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I have a C# program that in the config file the user can specify Windows sounds to be played as a part of their routine. I have the sound in a variable "parameter" and it will have like "asterisk", "hand", "question", etc. In Java when I make Minecraft plugins, the enums have a .valueOf which I can pass a string and if that string matches one of the enum names, it returns it. I did System.Media.SystemSounds. and looked at what came up. There is no similar function (which I guess is expected, as it's not an enum I assume).

Is there a way to easily convert my string name into the matching SystemSound? I mean, I can switch on the string.ToLower() and make it that way but I'm hoping there is a one liner way.

Thanks!

is there a way to easily convert my string name into the matching SystemSound

Use a Dictionary<string, SystemSounds> and insert all your strings and sounds into this. Then later lookup the sound by the string key.

Otherwise, the term you are looking for is called reflection - Get property value from string using reflection in C#

how to get a property by variable in ts, you are not validating that it exists in the object in the correct way, it should be like this: if (obj[x] != undefined) { //do something }. Although it� It is a good practice to use the same name for both the property and the private field, but with an uppercase first letter. The get method returns the value of the variable name. The set method assigns a value to the name variable. The value keyword represents the value we assign to the property.

If you start with an enum like this:

public enum Foo
{
    Bar = 42, Qaz = 99
}

Then you can do this:

Dictionary<string, Foo> map =
    typeof(Foo)
        .GetEnumValues()
        .Cast<Foo>()
        .Zip(
            typeof(Foo)
                .GetEnumValues()
                .Cast<int>(),
            (n, v) => new { n, v })
        .ToDictionary(x => x.n.ToString(), x => (Foo)x.v);

Console.WriteLine((int)map["Bar"]);
Console.WriteLine((int)map["Qaz"]);

That outputs:

42
99

3 Ways To Access Object Properties in JavaScript, 3.1 Alias variable; 3.2 Dynamic property name A common way to access the property of an object is the dot property accessor syntax: When you get used to object destructuring, you will find that its syntax is a great way to� An array of Type objects representing the number, order, and type of the parameters for the indexed property to get.-or-An empty array of the type Type (that is, Type[] types = new Type[0]) to get a property that is not indexed.

You could use reflection.

enum MyEnum {
  Asterix, Hand, Question
}

public static void Main(string[] args)
{
  var field = typeof(MyEnum).GetField("Asterix");

  var myEnum = field.GetValue(field);

}

the myEnum variable takes value of MyEnum.Asterix, based on a string variable supplied to the typeof(MyEnum).GetField("Asterix") method.

When giving a variable a property value. Do you have to use this , But do I have to use this way of doing it? Can't I assign the value to the variable by writing var aProperty = james.job; access via dot-notation james.job ==> you will get the associated string VALUE of the job property-key, thus you get the� In c#, Property is an extension of the class variable and it provides a mechanism to read, write or change the value of the class variable without affecting the external way of accessing it in our applications. In c#, properties can contain one or two code blocks called accessors and those are called a get accessor and set accessor.

If you need to access static properties of class SystemSounds by name, you can use reflection, as follows:

var sound = System.Media.SystemSounds.Asterisk;
Console.WriteLine(sound);
var name = "Asterisk";
var soundByName = typeof(System.Media.SystemSounds).GetProperty(name).GetValue(null, null); // null, null because it's a static property
Console.WriteLine(soundByName);
Console.WriteLine(sound == soundByName); // Should output 'true'

Setting and Getting Property Values - Manual, Data object properties can be accessed using the object property access syntax. The following Each iteration will assign the next department in the list to the variable $department. Using the index directly in this way is likely to be fragile. You use a private variable when you want to do some sort of validation before setting the property, or basically abstract away what is happening inside your class with regards to that property. For example, if you want a given variable to be in a range:

get_object_vars - Manual, get_object_vars — Gets the properties of the given object It turns out the best way to get references to all of your objects member variables is NOT with the� An automatically implemented property (or auto-property for short), is a non-abstract non-extern property with semicolon-only accessor bodies. Auto-properties must have a get accessor and can optionally have a set accessor.

How to Dynamically Access Object Property Using Variable in , There are two ways to access or get the value of a property from an object — the dot ( . ) notation, like obj.foo , and the square bracket ( [] ) notation, like obj[foo] . Properties enable a class to expose a public way of getting and setting values, while hiding implementation or verification code. A get property accessor is used to return the property value, and a set property accessor is used to assign a new value. These accessors can have different access levels.

Set-Variable (Microsoft.PowerShell.Utility), The Set-Variable cmdlet assigns a value to a specified variable or changes the current This command shows how to change the visibility of a variable to Private. To see the Options property of all variables in the session, type Get- Variable� Get-ItemProperty returns an object for each item property that it gets. The object type depends on the object that is retrieved. For example, in a file system drive, it might return a file or folder. Notes. The Get-ItemProperty cmdlet is designed to work with the data exposed by any provider

Comments
  • It would be awesome if you could provide a minimal reproducible example of your progress so far.
  • Look at reflection usage in this post: stackoverflow.com/questions/2762531/…