Hide a Group and it's children

GoXam
#1

Hi Walter

Other than using a custom layer, is there any other way to a hide a group node and it’s children?
I tried the following but it only hides the group and not it’s children:

var groupPart = measureDiagram.Diagram.PartManager.FindNodeForData(group, model);
groupPart.Visibility = Visibility.Collapsed;

Thanks
Justin

#2

You should be able to set Part.Visible = false.

#3

Hi Walter

That works but it produces an unexpected behaviour. Consider the follow code:

private void BuildDiagram()
{
var diagram = ctlDiagram;

            diagram.StartTransaction("Test");

            var group = new GraphLinksModelNodeData<string>();
            group.IsSubGraph = true;
            group.Key = "TheGroup";
            group.Text = "Grouper";               
            group.Location = new Point(100, 100);
            diagram.Model.AddNode(group);
           

            var n1 = new GraphLinksModelNodeData<string> { Key = "32", Location = new Point(250, 80), Text = "Accounts Payable", SubGraphKey = "TheGroup" };
            var n2 = new GraphLinksModelNodeData<string> { Key = "10", Location = new Point(160, 210), Text = "Administration Expenses", SubGraphKey = "TheGroup" };
            var n3 = new GraphLinksModelNodeData<string> { Key = "22", Location = new Point(330, 210), Text = "Cash", SubGraphKey = "TheGroup" };
            var n4 = new GraphLinksModelNodeData<string> { Key = "16", Location = new Point(183, 329), Text = "Deprecitation", SubGraphKey = "TheGroup" };               

            diagram.Model.AddNode(n1);
            diagram.Model.AddNode(n2);
            diagram.Model.AddNode(n3);
            diagram.Model.AddNode(n4);                

            diagram.Model.AddLink(n1, null, n2, "T");
            diagram.Model.AddLink(n1, null, n3, "T");
            diagram.Model.AddLink(n2, null, n4, "T");


            var groupPart = diagram.PartManager.FindNodeForData(group, diagram.Model);
            groupPart.Visible = false;
           

            diagram.CommitTransaction("Test");                                           
        
    }


    private void cmdShow_Click(object sender, RoutedEventArgs e)
    {
        var group = ctlDiagram.Model.FindNodeByKey("TheGroup");
        var groupPart = ctlDiagram.PartManager.FindNodeForData(group, ctlDiagram.Model);

        ctlDiagram.StartTransaction("test2");
        groupPart.Visible = true;          
        ctlDiagram.CommitTransaction("test2");
                                                    
    }

Initially I call BuildDiagram() and then later on cmdShow_Click(). This produces the following:

Notice how the links are offset from the port they are supposed to connect to. The correct display should be this:

Thanks
Justin

#4

Although it might not look like it this is the same bug that you reported last week.
Let me check on its progress.