Class GridIndexDictionary

Implements a collection with index / value pairs stored in a System.Collections.Hashtable and lets you insert, remove, or move values in the collection and indexes will be updated.

Inheritance
System.Object
TypedDictionaryBase
GridIndexDictionary
Implements
System.Collections.IDictionary
System.Collections.ICollection
System.Collections.IEnumerable
System.ICloneable
System.Runtime.Serialization.ISerializable
Inherited Members
System.Object.Equals(System.Object)
System.Object.Equals(System.Object, System.Object)
System.Object.GetHashCode()
System.Object.GetType()
System.Object.MemberwiseClone()
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.ToString()
Namespace: Syncfusion.Windows.Forms.Grid
Assembly: Syncfusion.Grid.Windows.dll
Syntax
public class GridIndexDictionary : TypedDictionaryBase, IDictionary, ICollection, IEnumerable, ICloneable, ISerializable
Remarks

GridModelHideRowColsIndexer and GridModelRowColSizeIndexer store row, column sizes, and hidden states in a GridIndexDictionary.

Constructors

GridIndexDictionary(Hashtable, Type)

Initializes a new instanceGridIndexDictionary and specifies the hash table and type of values this collection holds.

Declaration
protected GridIndexDictionary(Hashtable hashtable, Type memberType)
Parameters
Type Name Description
System.Collections.Hashtable hashtable

The inner hash table to be associated with this GridIndexDictionary.
System.Type memberType

The type of values this collection holds.

GridIndexDictionary(SerializationInfo, StreamingContext)

Initializes a new instanceGridIndexDictionary from a serialization stream.

Declaration
protected GridIndexDictionary(SerializationInfo info, StreamingContext context)
Parameters
Type Name Description
System.Runtime.Serialization.SerializationInfo info

An object that holds all the data needed to serialize or de-serialize this instance.
System.Runtime.Serialization.StreamingContext context

Describes the source and destination of the serialized stream specified by info.

GridIndexDictionary(Type)

Initializes a new instance ofGridIndexDictionary and specifies the type of values this collection holds.

Declaration
public GridIndexDictionary(Type memberType)
Parameters
Type Name Description
System.Type memberType

The type of values this collection holds.

Properties

Item[Int32]

Gets or sets the value at the specified index.

Declaration
public object this[int key] { get; set; }
Parameters
Type Name Description
System.Int32 key
Property Value
Type
System.Object

LargestKey

Gets the largest index in the collection.

Declaration
public int LargestKey { get; }
Property Value
Type
System.Int32

MemberType

Gets the MemberType. Used internally.

Declaration
public Type MemberType { get; }
Property Value
Type
System.Type

SmallestKey

Gets the smallest index in the collection.

Declaration
public int SmallestKey { get; }
Property Value
Type
System.Int32

Methods

Add(Int32, Object)

Adds an index / value pair.

Declaration
public void Add(int key, object value)
Parameters
Type Name Description
System.Int32 key

The index for the value.
System.Object value

The value.

Clone()

Creates an exact copy of this GridIndexDictionary.

Declaration
public GridIndexDictionary Clone()
Returns
Type Description
GridIndexDictionary

A GridIndexDictionary with all values copied over.

Contains(Int32)

Checks if the collection has an entry at the specified index.

Declaration
public bool Contains(int key)
Parameters
Type Name Description
System.Int32 key

The index for the value.
Returns
Type Description
System.Boolean

True if a value exists at the index; False otherwise.

CopyTo(Object[], Int32)

Copies the values to a one-dimensional System.Array instance at the specified index.

Declaration
public void CopyTo(object[] array, int index)
Parameters
Type Name Description
System.Object[] array

The one-dimensional System.Array that is the destination of the values copied from the GridCellModelCollection.
System.Int32 index

The index in the array where copying begins.

GetHashTable()

Gets the hash table. Used internally.

Declaration
public Hashtable GetHashTable()
Returns
Type Description
System.Collections.Hashtable

returns Hash table.

GetObjectData(SerializationInfo, StreamingContext)

Implements the ISerializable interface and returns the data needed to serialize the GridIndexDictionary.

Declaration
public virtual void GetObjectData(SerializationInfo info, StreamingContext context)
Parameters
Type Name Description
System.Runtime.Serialization.SerializationInfo info

A SerializationInfo object containing the information required to serialize the object.
System.Runtime.Serialization.StreamingContext context

A StreamingContext object containing the source and destination of the serialized stream.

InsertIndex(Int32, Int32)

Inserts a specified number of values at a specific index and adjusts the index for subsequent values.

Declaration
public void InsertIndex(int index, int count)
Parameters
Type Name Description
System.Int32 index

The index where to start inserting values.
System.Int32 count

The number of values to insert.

Lookup(Int32, out Int32)

Determines if a System.Int32 value is stored at a specific index and returns its value.

Declaration
public bool Lookup(int key, out int result)
Parameters
Type Name Description
System.Int32 key

The index to look up.
System.Int32 result

The value at the specified index.
Returns
Type Description
System.Boolean

True if value exists; False otherwise.

Lookup(Int32, out Object)

Determines if a System.Object value is stored at a specific index and returns its value.

Declaration
public bool Lookup(int key, out object obj)
Parameters
Type Name Description
System.Int32 key

The index to look up.
System.Object obj

The value at the specified index.
Returns
Type Description
System.Boolean

True if value exists; False otherwise.

Lookup(Int32, out Single)

Determines if a System.Single value is stored at a specific index and returns its value.

Declaration
public bool Lookup(int key, out float result)
Parameters
Type Name Description
System.Int32 key

The index to look up.
System.Single result

The value at the specified index.
Returns
Type Description
System.Boolean

True if value exists; False otherwise.

MoveIndex(Int32, Int32, Int32)

Moves a specified number of values to a new index and adjusts the indexes of subsequent values.

Declaration
public void MoveIndex(int from, int count, int dest)
Parameters
Type Name Description
System.Int32 from

The index where to start moving values.
System.Int32 count

The number of values to move.
System.Int32 dest

The destination index.

OnInsert(Object, Object)

Invoked when the Key and value pair inserted into the dictionary.

Declaration
protected override void OnInsert(object key, object value)
Parameters
Type Name Description
System.Object key

Key value.
System.Object value

Corresponding value of that key.
Overrides

OnRemove(Object, Object)

Invoked when the Key and value pair removed from the dictionary.

Declaration
protected override void OnRemove(object key, object value)
Parameters
Type Name Description
System.Object key

Key value.
System.Object value

Corresponding value of that key.
Overrides

OnSet(Object, Object, Object)

Sets the new value.

Declaration
protected override void OnSet(object key, object oldValue, object newValue)
Parameters
Type Name Description
System.Object key
System.Object oldValue
System.Object newValue
Overrides

OnValidate(Object, Object)

Validates the key,value pair in the dictionary.

Declaration
protected override void OnValidate(object key, object value)
Parameters
Type Name Description
System.Object key
System.Object value
Overrides
Exceptions
Type Condition
System.ArgumentException

if key is Negative.

Remove(Int32)

Removes the value at the specified index.

Declaration
public void Remove(int key)
Parameters
Type Name Description
System.Int32 key

The Index.

RemoveIndex(Int32, Int32)

Removes a specified number of values at a specific index and adjusts the index for subsequent values.

Declaration
public void RemoveIndex(int from, int count)
Parameters
Type Name Description
System.Int32 from

The index where to start removing values.
System.Int32 count

The number of values to remove.

Explicit Interface Implementations

ICloneable.Clone()

Creates a new object that is a copy of the current instance.

Declaration
object ICloneable.Clone()
Returns
Type Description
System.Object

A new object that is a copy of this instance.

Implements

System.Collections.IDictionary
System.Collections.ICollection
System.Collections.IEnumerable
System.ICloneable
System.Runtime.Serialization.ISerializable

Extension Methods