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Page 720 of 2109
Get a specific field of the current type C#
To get a specific field of the current type in C#, you use the GetField() method from the System.Reflection namespace. This method returns a FieldInfo object that represents the field with the specified name, or null if the field is not found. Syntax Following is the syntax for getting a specific field using reflection − Type type = typeof(ClassName); FieldInfo fieldInfo = type.GetField("fieldName"); The GetField() method has several overloads that accept binding flags to control the search behavior − FieldInfo fieldInfo = type.GetField("fieldName", BindingFlags.Public | BindingFlags.Instance); Parameters name ...
Read MoreAdding an element into the Hashtable in C#
A Hashtable in C# is a collection that stores key-value pairs using a hash-based structure for fast lookups. To add elements to a Hashtable, you use the Add() method which takes a key and a value as parameters. Syntax Following is the syntax for adding elements to a Hashtable − Hashtable hashtableName = new Hashtable(); hashtableName.Add(key, value); You can also specify the initial capacity when creating the Hashtable − Hashtable hashtableName = new Hashtable(capacity); Parameters key − The key of the element to add (must be unique ...
Read MoreGet the hash code for this instance in C#
To get the hash code for this instance in C#, you use the GetHashCode() method. This method returns a hash code for the current object, which is useful for hash-based operations and collections like HashSet and Dictionary. Syntax Following is the syntax for getting the hash code of an instance − public virtual int GetHashCode() Return Value The GetHashCode() method returns a 32-bit signed integer that serves as the hash code for this instance. Objects that are equal should return the same hash code, though the reverse is not necessarily true. Using ...
Read MoreCheck if OrderedDictionary collection contains a specific key in C#
The OrderedDictionary collection in C# provides the Contains() method to check if a specific key exists in the collection. This method returns a boolean value − true if the key is found, false otherwise. Syntax Following is the syntax for checking if an OrderedDictionary contains a specific key − bool result = orderedDictionary.Contains(key); Parameters key − The key to locate in the OrderedDictionary collection. Return Value The method returns true if the OrderedDictionary contains an element with the specified key; otherwise, false. Using Contains() with Numeric Keys ...
Read MoreConvert the value of the specified Decimal to the equivalent 16-bit unsigned integer in C#
The Decimal.ToUInt16() method in C# converts a decimal value to its equivalent 16-bit unsigned integer (ushort). This method performs truncation, discarding the fractional part and keeping only the integer portion of the decimal value. Syntax Following is the syntax for the Decimal.ToUInt16() method − public static ushort ToUInt16(decimal value) Parameters value − The decimal number to be converted to a 16-bit unsigned integer. Return Value Returns a ushort (16-bit unsigned integer) that represents the truncated value of the specified decimal. The valid range is 0 to 65, ...
Read MoreCheck if OrderedDictionary collection is read-only in C#
The OrderedDictionary class in C# provides a collection that maintains the order of key-value pairs while allowing access by both key and index. To check if an OrderedDictionary is read-only, you use the IsReadOnly property. An OrderedDictionary is typically not read-only by default, meaning you can add, modify, and remove elements after creation. However, you can create a read-only wrapper using specific methods. Syntax Following is the syntax to check if an OrderedDictionary is read-only − bool isReadOnly = orderedDictionary.IsReadOnly; Following is the syntax to create a read-only wrapper − OrderedDictionary ...
Read MoreAdding new node or value at the start of LinkedList in C#
To add a new node or value at the start of a LinkedList in C#, you can use the AddFirst() method. This method adds the specified element at the beginning of the LinkedList, making it the first node. Syntax Following is the syntax for adding elements to the beginning of a LinkedList − linkedList.AddFirst(value); You can also add a LinkedListNode object − linkedList.AddFirst(new LinkedListNode(value)); Parameters The AddFirst() method accepts the following parameter − value − The value to add at the beginning of the LinkedList ...
Read MoreAdding the elements of the specified collection to the end of the List in C#
The AddRange() method in C# allows you to add all elements from a specified collection to the end of a List. This method is more efficient than adding elements one by one using Add() when you need to append multiple items from an existing collection. Syntax Following is the syntax for the AddRange() method − public void AddRange(IEnumerable collection) Parameters collection − The collection whose elements should be added to the end of the List. The collection itself cannot be null, but it can contain elements that are null. Using ...
Read MoreAdding the specified key and value into HybridDictionary in C#
The HybridDictionary class in C# provides a collection that combines the functionality of a ListDictionary for small collections and a Hashtable for larger collections. It automatically switches between these internal implementations based on the number of elements to optimize performance. HybridDictionary is part of the System.Collections.Specialized namespace and uses a ListDictionary when the collection is small (typically under 10 items) and switches to a Hashtable when it grows larger. Syntax Following is the syntax for adding key-value pairs to a HybridDictionary − HybridDictionary dictionary = new HybridDictionary(); dictionary.Add(key, value); Parameters key ...
Read MoreCopy ListDictionary to Array instance at the specified index in C#
The ListDictionary class in C# provides the CopyTo method to copy its elements to an array at a specified index. This method is useful when you need to convert dictionary data into array format or merge dictionary elements with existing array data. Syntax Following is the syntax for the CopyTo method − public void CopyTo(Array array, int index) Parameters array − The target array where elements will be copied. Must be of type DictionaryEntry[]. index − The zero-based index in the array at which copying begins. Using CopyTo with Index ...
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