How to expand or collapse the WPF TreeGrid (SfTreeGrid) by clicking any cell in the row?
You can expand or collapse the groups by click any cell in row by overriding ProcessOnTapped method in TreeGridRowSelectionController of WPF TreeGrid (SfTreeGrid).
treeGrid.SelectionController = new TreeGridSelectionControllerExt(treeGrid);
public class TreeGridSelectionControllerExt : TreeGridRowSelectionController
{
public TreeGridSelectionControllerExt(SfTreeGrid treeGrid) : base(treeGrid)
{
}
protected override void ProcessOnTapped(MouseButtonEventArgs e, RowColumnIndex currentRowColumnIndex)
{
if (currentRowColumnIndex.RowIndex <= this.TreeGrid.GetHeaderIndex())
return;
var node = TreeGrid.GetNodeAtRowIndex(currentRowColumnIndex.RowIndex);
if (node != null)
{
if (node.IsExpanded)
TreeGrid.CollapseNode(node);
else if (!node.IsExpanded)
TreeGrid.ExpandNode(node);
}
base.ProcessOnTapped(e, currentRowColumnIndex);
}
}
Conclusion
I hope you enjoyed learning about how to expand or collapse the WPF TreeGrid (SfTreeGrid) by clicking any cell in the row.
You can refer to our WPF TreeGrid feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started for configuration specifications.
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