Class DataGridTopLevelGroup

Represents the class that used to maintain the first-level of the Groups present in ICollectionViewAdv. It maintains the data structure for Grouping with ICollectionViewAdv. Iterate the DisplayElements property to get one-to-one mapping of the index with the TopLevelGroup items. Access all the Bottom-level and other nested level groups with the Groups property.

Inheritance
System.Object
NodeEntry
GroupEntry
Group
TopLevelGroup
DataGridTopLevelGroup
Implements
System.IDisposable
System.Collections.Generic.IEnumerable<NodeEntry>
System.Collections.IEnumerable
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.WinForms.DataGrid.Data
Assembly: Syncfusion.SfDataGrid.WinForms.dll
Syntax
public class DataGridTopLevelGroup : TopLevelGroup, IDisposable, IEnumerable<NodeEntry>, IEnumerable, IGroupRefresh, IGroupList

Constructors

DataGridTopLevelGroup(SfDataGrid, CollectionViewAdv)

Initializes a new instance of the DataGridTopLevelGroup class.

Declaration
public DataGridTopLevelGroup(SfDataGrid grid, CollectionViewAdv collectionView)
Parameters
Type Name Description
SfDataGrid grid

The grid which is grouped
CollectionViewAdv collectionView

The underlying collection view of the group.

Properties

RelationsCount

Gets the relations count of the group, that link grid and allow navigation from parent grid to child grid.

Declaration
public override int RelationsCount { get; }
Property Value
Type
System.Int32
Overrides

Methods

Dispose(Boolean)

Releases unmanaged and optionally releases the managed resources.

Declaration
protected override void Dispose(bool disposing)
Parameters
Type Name Description
System.Boolean disposing

True to release both managed and unmanaged resources; false to release only unmanaged resources.
Overrides

Invalidate(Int32, Int32)

Invalidates the particular data row based on the index.

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

The row index needs to invalidate.
System.Int32 count

The number of rows needs to invalidate.
Overrides

Implements

System.IDisposable
System.Collections.Generic.IEnumerable<T>
System.Collections.IEnumerable

Extension Methods