Infragistics2.Win.UltraWinTree.v8.1
Level Property
See Also  Example
Infragistics.Win.UltraWinTree Namespace > UltraTreeNode Class : Level Property

Gets the node level.

Syntax

Visual Basic (Declaration) 
Public ReadOnly Property Level As Integer
C# 
public int Level {get;}

Remarks

Root nodes are level 0. Children of the root are Level 1, etc.

Example

The following sample code illustrates some of the information exposed by a mode.

Visual BasicCopy Code
    Imports Infragistics.Win.UltraWinTree

    Private Sub button19_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles button19.Click

        Dim node As UltraTreeNode

        ' Get the top node. This is the first node that
        ' is currently scrooled to the top of the tree.
        node = Me.ultraTree1.TopNode

        ' Loop over all visible nodes (this bypasses nodes
        ' whose 'Visible' property is false as well as
        ' nodes with a collpased parent node)
        While Not node Is Nothing

            ' Write node's key.
            Debug.WriteLine("node key: " + node.Key)

            ' Indent the rest of the output.
            Debug.Indent()

            ' Write out the node handle's value. The handle is
            ' just an integer that uniquely identifies a node
            ' during a session, even across different tree
            ' controls. However, be aware that this handle is
            ' only valid during the session and is therefore
            ' not persistable.
            Debug.WriteLine("handle: " + node.Handle.ToString())

            ' Write out some additonal information about the node
            Debug.WriteLine("text: " + node.Text)
            Debug.WriteLine("level: " + node.Level.ToString())
            Debug.WriteLine("index: " + node.Index.ToString())
            Debug.WriteLine("visible: " + node.Visible.ToString())
            Debug.WriteLine("expanded: " + node.Expanded.ToString())
            Debug.WriteLine("check state: " + node.CheckedState.ToString())
            Debug.WriteLine("full path: " + node.FullPath.ToString())

            Debug.WriteLine("style: " + node.NodeStyleResolved.ToString())

            Debug.WriteLine("tip style: " + node.TipStyleNodeResolved.ToString())

            Debug.WriteLine("ShowExpansionIndicator: " + node.ShowExpansionIndicatorResolved.ToString())

            Debug.WriteLine("AllowAutoDragExpand: " + node.AllowAutoDragExpandResolved.ToString())

            If node.AllowDeleteResolved = True Then
                Debug.WriteLine("allow the deletion of this node.")
            End If

            If node.DrawImageBackgroundResolved = DefaultableBoolean.True Then
                Debug.WriteLine("will draw a backround image if one is set.")
            End If

            If node.HasExpansionIndicator = True Then
                Debug.WriteLine("has an expansion indicator.")
            End If

            If node.HotTrackingResolved = True Then
                Debug.WriteLine("supports hot tracking.")
            End If

            If node.LabelEditResolved = True Then
                Debug.WriteLine("allow user editing of this node's text.")
            End If

            If node.EnabledResolved = True Then
                Debug.WriteLine("is enabled.")
            Else
                Debug.WriteLine("is disabled.")
            End If

            If node.IsInView = True Then
                Debug.WriteLine("is in view.")
            Else
                Debug.WriteLine("is not in view.")
            End If

            If node.IsActive = True Then
                Debug.WriteLine("is active.")
            End If

            If node.IsDraggable = True Then
                Debug.WriteLine("is draggable.")
            End If

            If node.IsEditing = True Then
                Debug.WriteLine("is in edit.")
            End If

            If node.IsHotTracking = True Then
                Debug.WriteLine("is hot tracking.")
            End If

            If node.IsRootLevelNode = True Then
                Debug.WriteLine("is root node.")
            Else
                Debug.WriteLine("root node: " + node.RootNode.Key)

                If Not node.PrevVisibleNode Is Nothing Then
                    Debug.WriteLine("previous visible node: " + node.PrevVisibleNode.Key)
                End If
            End If

            If node.IsSelectable = True Then
                Debug.WriteLine("is selectable.")
            End If

            If node.ReserveCheckBoxSpaceResolved = True Then
                Debug.WriteLine("reserve space for a checkbox even if the NodeStyle is not a checkbox or option style.")
            End If

            If node.ReserveImageSpaceResolved = True Then
                Debug.WriteLine("reserve space for an image even if there isn't one.")
            End If

            Debug.WriteLine("double click action: " _
              + node.NodeDoubleClickActionResolved.ToString())

            Debug.WriteLine("width of the text: " _
             + node.TextWidth.ToString() _
             + " pixels.")

            Debug.WriteLine("height of the node: " _
             + node.ItemHeightResolved.ToString() _
             + " pixels.")

            Debug.WriteLine("bounds: " _
             + node.Bounds.ToString())

            Debug.WriteLine("image size: " _
             + node.ImageSizeResolved.ToString())

            Debug.WriteLine("# of sibling nodes: " _
             + node.ParentNodesCollection.Count.ToString())

            ' Reset the output indent level
            Debug.IndentLevel = 0

            ' get the next visible node
            node = node.NextVisibleNode

        End While

    End Sub

C#Copy Code
       using System.Diagnostics;
       using Infragistics.Win.UltraWinTree;


       private void button19_Click(object sender, System.EventArgs e)
       {

           UltraTreeNode node;

           // Get the top node. This is the first node that
           // is currently scrooled to the top of the tree.
           node = this.ultraTree1.TopNode;

           // Loop over all visible nodes (this bypasses nodes
           // whose 'Visible' property is false as well as
           // nodes with a collpased parent node)
           while (node != null)
           {
               // Write node's key.
               Debug.WriteLine( "node key: " + node.Key );

               // Indent the rest of the output.
               Debug.Indent();

               // Write out the node handle's value. The handle is
               // just an integer that uniquely identifies a node
               // during a session, even across different tree
               // controls. However, be aware that this handle is
               // only valid during the session and is therefore
               // not persistable.
               Debug.WriteLine("handle: " + node.Handle.ToString());

               // Write out some additonal information about the node
               Debug.WriteLine( "text: " + node.Text );
               Debug.WriteLine("level: " + node.Level.ToString());
               Debug.WriteLine("index: " + node.Index.ToString());
               Debug.WriteLine("visible: " + node.Visible.ToString());
               Debug.WriteLine("expanded: " + node.Expanded.ToString());
               Debug.WriteLine("check state: " + node.CheckedState.ToString());
               Debug.WriteLine("full path: " + node.FullPath.ToString());

               Debug.WriteLine("style: "
                   + node.NodeStyleResolved.ToString() );

               Debug.WriteLine("tip style: "
                   + node.TipStyleNodeResolved.ToString() );
               
               Debug.WriteLine("ShowExpansionIndicator: "
                   + node.ShowExpansionIndicatorResolved.ToString() );
               
               Debug.WriteLine("AllowAutoDragExpand: "
                   + node.AllowAutoDragExpandResolved.ToString() );
           
               if ( node.AllowDeleteResolved )
                   Debug.WriteLine("allow the deletion of this node.");
           
               if ( node.DrawImageBackgroundResolved
                       == DefaultableBoolean.True )
                   Debug.WriteLine("will draw a backround image if one is set.");
           
               if ( node.HasExpansionIndicator )
                   Debug.WriteLine("has an expansion indicator.");
           
               if ( node.HotTrackingResolved )
                   Debug.WriteLine("supports hot tracking.");
           
               if ( node.LabelEditResolved )
                   Debug.WriteLine("allow user editing of this node's text.");
               
               if ( node.EnabledResolved )
                   Debug.WriteLine("is enabled.");
               else
                   Debug.WriteLine("is disabled.");
               
               if ( node.IsInView )
                   Debug.WriteLine("is in view.");
               else
                   Debug.WriteLine("is not in view.");
               
               if ( node.IsActive )
                   Debug.WriteLine("is active.");
               
               if ( node.IsDraggable )
                   Debug.WriteLine("is draggable.");
               
               if ( node.IsEditing )
                   Debug.WriteLine("is in edit.");
               
               if ( node.IsHotTracking )
                   Debug.WriteLine("is hot tracking.");
               
               if ( node.IsRootLevelNode )
                   Debug.WriteLine("is root node.");
               else
                   Debug.WriteLine("root node: "
                       + node.RootNode.Key );
               
               if ( node.PrevVisibleNode != null )
                   Debug.WriteLine("previous visible node: "
                       + node.PrevVisibleNode.Key );
               
               if ( node.IsSelectable )
                   Debug.WriteLine("is selectable.");
   
               if ( node.ReserveCheckBoxSpaceResolved )
                   Debug.WriteLine("reserve space for a checkbox even if the NodeStyle is not a checkbox or option style.");
   
               if ( node.ReserveImageSpaceResolved )
                   Debug.WriteLine("reserve space for an image even if there isn't one.");
               
               Debug.WriteLine("double click action: "
                   + node.NodeDoubleClickActionResolved.ToString() );
               
               Debug.WriteLine("width of the text: "
                   + node.TextWidth.ToString()
                   + " pixels." );
               
               Debug.WriteLine("height of the node: "
                   + node.ItemHeightResolved.ToString()
                   + " pixels." );
               
               Debug.WriteLine("bounds: "
                   + node.Bounds.ToString() );

               Debug.WriteLine("image size: "
                   + node.ImageSizeResolved.ToString() );

               Debug.WriteLine("# of sibling nodes: "
                   + node.ParentNodesCollection.Count.ToString() );

               // Reset the output indent level
               Debug.IndentLevel = 0;

               // get the next visible node
               node = node.NextVisibleNode;
           }

       }

See Also