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How to create Multiline text nodes in TreeViewAdv control

 

MultiLine text node can be created using OwnerDrawNode property. Subscribe to the event BeforeNodePaint and change the size of the TreeNodeAdv according to the size of the string.Size of the string could be calculated by using MesureString method.Then draw the text using Draw method

C#

// Creating multiline text nodes

private void treeViewAdv1_BeforeNodePaint(object sender, Syncfusion.Windows.Forms.Tools.TreeNodeAdvPaintEventArgs e)

{

// Paint a custom background around the text area:

TreeNodeAdv node = e.Node;

Brush foreBrush = new SolidBrush(Color.Red );

System.Drawing.SizeF tSize = e.Graphics.MeasureString( "MultiLine \nText", node.Font );

e.Node.Height = tSize.ToSize().Height;

e.Graphics.FillRectangle(new SolidBrush(Color.LightBlue ), e.Node.Bounds.X , e.Node.Bounds.Y , e.Node.Bounds.Width , e.Node.Height );

e.Graphics.DrawString("MultiLine \nText", node.Font, foreBrush, node.TextBounds.Right + 2,node.Bounds.Y + (node.Height-node.TextBounds.Height)/2);

}

VB

' Creating multiline text nodes

Private Sub TreeViewAdv1_BeforeNodePaint(ByVal sender As Object, ByVal e As Syncfusion.Windows.Forms.Tools.TreeNodeAdvPaintEventArgs) Handles TreeViewAdv1.BeforeNodePaint

Dim node As TreeNodeAdv

Dim foreBrush As Brush

Dim tSize As SizeF node = e.Node

foreBrush = New SolidBrush(Color.Red)

tSize = e.Graphics.MeasureString("MultiLine " & vbCrLf & "Text", node.Font

e.Node.Height = tSize.ToSize().Height

e.Graphics.FillRectangle(New SolidBrush(Color.LightBlue), node.Bounds)

e.Graphics.DrawString("MultiLine " & vbCrLf & "Text", node.Font, foreBrush, node.TextBounds.Right + 2, node.Bounds.Y + (node.Height - node.TextBounds.Height) / 2)

End Sub

Article ID: Published Date: Last Revised Date: Platform: Control:
1493 04/30/2011 07/10/2014 WinForms TreeViewAdv
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