GridControl.GetChildRowHandle(Int32, Int32) Method

Returns the handle of the row contained within the specified group row, at the specified position.

Namespace: DevExpress.Xpf.Grid

Assembly: DevExpress.Xpf.Grid.v23.2.dll

NuGet Package: DevExpress.Wpf.Grid.Core

Declaration

C#

public int GetChildRowHandle(
    int rowHandle,
    int childIndex
)

VB.NET

Public Function GetChildRowHandle(
    rowHandle As Integer,
    childIndex As Integer
) As Integer

Parameters

Name	Type	Description
rowHandle	Int32	An integer value that specifies the group row’s handle.
childIndex	Int32	A zero-based integer that specifies the child row’s position within the specified group row.

Returns

Type	Description
Int32	An integer value that represents the handle of the row contained within the specified group row, at the specified position.

Remarks

Group row handles are negative (start from -1). The GetChildRowHandle method returns the invalid row handle (DataControlBase.InvalidRowHandle) if the specified group row doesn’t contain a child row at the specified position. The invalid row handle is also returned if the specified row handle doesn’t correspond to a group row.

To obtain the number of child rows within the specified group row, use the GridControl.GetChildRowCount method.

To learn more, see Identifying Rows and Cards.

Related GitHub Examples

The following code snippets (auto-collected from DevExpress Examples) contain references to the GetChildRowHandle(Int32, Int32) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-select-all-group-subitems-when-a-group-row-is-clicked-wpf-e4617/CS/GridGroupSelect/GroupChildSelector.cs#L44

for (int i = 0; i < childRowCount; i++) {
    int childRowHandle = grid.GetChildRowHandle(groupRowHandle, i);
    if (GetMode(grid.View) == ChildSelectionMode.Hierarchical

how-to-create-search-window-with-find-previous-and-find-next-buttons-in-gridcontrol-t127527/CS/DevExpress.Example01/SearchBehavior/SearchWindow.xaml.cs#L246

while(++i < this._Grid.GetChildRowCount(groupRowHandle)) {
    int rowHandle = this._Grid.GetChildRowHandle(groupRowHandle, i);
    if(this._Grid.IsGroupRowHandle(rowHandle)) {

VB.NET

how-to-select-all-group-subitems-when-a-group-row-is-clicked-wpf-e4617/VB/GridGroupSelect/GroupChildSelector.vb#L50

For i As Integer = 0 To childRowCount - 1
    Dim childRowHandle As Integer = grid.GetChildRowHandle(groupRowHandle, i)
    If GetMode(grid.View) = ChildSelectionMode.Hierarchical AndAlso grid.IsGroupRowHandle(childRowHandle) AndAlso grid.IsGroupRowExpanded(childRowHandle) Then

how-to-create-search-window-with-find-previous-and-find-next-buttons-in-gridcontrol-t127527/VB/DevExpress.Example01/SearchBehavior/SearchWindow.xaml.vb#L241

While Threading.Interlocked.Increment(i) < _Grid.GetChildRowCount(groupRowHandle)
    Dim rowHandle As Integer = _Grid.GetChildRowHandle(groupRowHandle, i)
    If _Grid.IsGroupRowHandle(rowHandle) Then