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Normal Topic ValidateAnchorPoint not firing (Read 2468 times)
Mann Madhan
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ValidateAnchorPoint not firing
Dec 5th, 2021 at 7:22am
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Dear team,
public Form2()
        {
            InitializeComponent();
            diagram1.ValidateAnchorPoint += new EventHandler<LinkValidationEventArgs>(ValidateAnchorPoint);
}
private void ValidateAnchorPoint(object sender, LinkValidationEventArgs e)
        {
            if (CountLinks(e.Node, e.AnchorIndex, e.Link) > 0)
                e.Cancel = true;
        }
when the event will fire? or i am doing some thing wrong
  
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Slavcho
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Re: ValidateAnchorPoint not firing
Reply #1 - Dec 6th, 2021 at 6:42am
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Hi,

This is fired when choosing AnchorPoint from a node's AnchorPattern property. It won't raise if node.AnchorPattern is null.

Regards,
Slavcho
Mindfusion
  
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madhan1
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Re: ValidateAnchorPoint not firing
Reply #2 - Dec 6th, 2021 at 7:23pm
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Dear sir,

Code (Java)
Select All
  TableNode tbResources1 = diagram1.Factory.CreateTableNode(210, 10, 100, 200);
            tbResources1.RowHeight = 25;
            tbResources1.RedimTable(1, itemIDs.Count);
            tbResources1.Caption = "Senses";
            tbResources1.Font = new Font(FontFamily.GenericSansSerif, 9.0F, FontStyle.Italic, GraphicsUnit.Pixel);
            tbResources1.Pen = new MindFusion.Drawing.Pen(Color.FromArgb(192, 192, 192));
            tbResources1.CaptionHeight = 20;
            tbResources1.CaptionBrush = new MindFusion.Drawing.SolidBrush(Color.White);
            tbResources1.CaptionBackBrush = new MindFusion.Drawing.SolidBrush(Color.FromArgb(247, 150, 70));
            for (int i=0;i<itemIDs.Count;i++)
            {
                tbResources[0, i].Text = itemIDs[i][1].ToString();
                tbResources1[0, i].Text = itemIDs[i][2].ToString();
                tbResources1.Rows[i].AnchorPattern = new AnchorPattern(new[] { new AnchorPoint(0,50) });

            }

            diagram1.Nodes.Add(tbResources1);



but the links are return as o only
  
nodes_002.png (Attachment deleted)
if you want something then go and grab it
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Slavcho
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Re: ValidateAnchorPoint not firing
Reply #3 - Dec 7th, 2021 at 7:46am
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Index reported to ValidateAnchorPoint event is of the AnchorPoint within AnchorPattern.Points array, so it's always first point in your case. It seems you are trying to prevent connecting a link to specific rows of the table. You can achieve that by handling the LinkCreating validation event -

Code
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void OnLinkCreating(object sender, LinkValidationEventArgs e)
{
	var table = e.Destination as TableNode;
	if (table != null && e.ChangingDestination && e.TableRow some condition)
		e.Cancel = true;
}


You might want to handle LinkModifying the same way.

Regards,
Slavcho
  
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