'Declaration Public Overloads Sub ExpandAll( _ ByVal expand As ExpandAllType _ )
public void ExpandAll( ExpandAllType expand )
When called with Always, this method expands each node by setting the Expanded proeprty to true. The node expansion may still be cancelled in the UltraTree.BeforeExpand event."
If the node's ShowExpansionIndicator property is set to CheckOnExpand, the BeforeExpand event will fire normally and if nodes are added (or already present) the node will expand. If no children are present after the completion of the BeforeExpand event, the node will not expand and the expansion indicator will disappear as normal.
Imports Infragistics.Win.UltraWinTree Private Sub button11_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button11.Click Dim node As UltraTreeNode node = Me.ultraTree1.ActiveNode If node Is Nothing Then Return ' toggle the expansion state of this node and all its ' descendant nodes. If node.Expanded = True Then node.CollapseAll() Else node.ExpandAll(ExpandAllType.OnlyNodesWithChildren) End If ' Note: The following code toggles the expansion state ' of this node only (not all of its descendant nodes): 'node.Expanded = Not node.Expanded ' Note: To expand or collapse all of the nodes in the ' tree use the control's 'ExpandAll' or 'CollapseAll'. ' The following code illustrates: 'Me.ultraTree1.ExpandAll(ExpandAllType.OnlyNodesWithChildren) 'Me.ultraTree1.CollapseAll() End Sub
using Infragistics.Win.UltraWinTree; private void button11_Click(object sender, System.EventArgs e) { UltraTreeNode node = this.ultraTree1.ActiveNode; if ( node == null ) return; // toggle the expansion state of this node and all its // descendant nodes. if ( node.Expanded == true ) node.CollapseAll(); else node.ExpandAll( ExpandAllType.OnlyNodesWithChildren ); // Note: The following code toggles the expansion state // of this node only (not all of its descendant nodes): //node.Expanded = !node.Expanded; // Note: To expand or collapse all of the nodes in the // tree use the control's 'ExpandAll' or 'CollapseAll'. // The following code illustrates: //this.ultraTree1.ExpandAll( ExpandAllType.OnlyNodesWithChildren ); //this.ultraTree1.CollapseAll(); }
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2