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How to create multiline text nodes in WinForms TreeViewAdv control?
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Multiline text node
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)
' Paint a custom background around the text area:
Dim node As TreeNodeAdv = e.Node
Dim foreBrush As Brush = New SolidBrush(Color.Red)
Dim tSize As System.Drawing.SizeF = e.Graphics.MeasureString("MultiLine " & Constants.vbLf & "Text", 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 " & Constants.vbLf & "Text", node.Font, foreBrush, node.TextBounds.Right + 2,node.Bounds.Y + (node.Height-node.TextBounds.Height)/2)
End Sub
