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TileView.GetChildRowCount(Int32) Method

Returns the number of tiles in the group with the specified unique identifier.

Namespace: DevExpress.XtraGrid.Views.Tile

Assembly: DevExpress.XtraGrid.v23.2.dll

NuGet Packages: DevExpress.Win.Grid, DevExpress.Win.Navigation


public int GetChildRowCount(
    int rowHandle


Name Type Description
rowHandle Int32

An integer value that specifies a unique identifier of the group for which to return the number of child tiles.


Type Description

An integer value that specifies the number of tiles in the group with the specified rowHandle.


If tiles are grouped using the TileViewColumns.GroupColumn property of the TileView.ColumnSet collection, you can use the TileView.GetParentRowHandle, TileView.GetChildRowHandle, GetChildRowCount and TileView.IsGroupRow methods to operate tiles based on tile handles and groups.

See the Rows topic for more information on tile handles and the Data Grouping section in the Tile View topic for details on the grouping feature.


The following example shows how to get a handle for the group to which a particular tile belongs, and iterate visible tiles in this group.

// Get a handle of the group to which a particular tile belongs (tile with the 0 handle in this example).
int groupHandle = tileView1.GetParentRowHandle(0);
// Check whether a handle corresponds to a group of tiles.
if (tileView1.IsGroupRow(groupHandle)) {
    // Get the number of tiles in the group.
    int groupTileCount = tileView1.GetChildRowCount(groupHandle);
    for (int i = 0; i < groupTileCount; i++) {
        // Get a handle for the tile  with the current index in the group.
        int childRowHandle = tileView1.GetChildRowHandle(groupHandle, i);
        // Check whether the tile is visible.
        if (tileView1.IsTileVisible(childRowHandle) == DevExpress.XtraGrid.Views.Grid.RowVisibleState.Visible) {
            // Get an underlying data object (DataRowView in this case), and perform the required actions.
            var row = tileView1.GetRow(childRowHandle) as System.Data.DataRowView;
            // ...

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the GetChildRowCount(Int32) method.


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See Also