Stoyo wrote on Jul 31^st, 2007 at 1:02pm:


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I couldn't find the reference for MindFusion.Diagramming.Xml, please advise.

Thanks.

Hi,

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What code should I put in these events?

I tried to put
tl.Arrange(FlowChart1)
FlowChart1.FitDocToObjects(0.5)
but the chart did not arranged well.

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I tried the following codes to move the root, and hit the error Object reference not found.

Dim rootNode As Node = tl.Root
rootNode.Move(600, 340) 

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If I would like to put a photo and a button in the nodes, what kind of controls should I use? 3rd party controls?

Thanks.

P/S : I have sent the XML to your email.

Hi Stoyo,

tl.ArrowStyle = Layout.TreeLayoutArrowType.Cascading3
tl.NodeDistance = 20
tl.LevelDistance = 50
tl.Arrange(FlowChart1)
FlowChart1.AntiAlias = Drawing2D.SmoothingMode.None
FlowChart1.ExpandButtonAction = ExpandButtonAction.ExpandTreeBranch
FlowChart1.ExpandButtonPosition = ExpandButtonPosition.OuterLowerLeft
FlowChart1.FitDocToObjects(0.5)
 

Above are my codes to initializate the TreeLayout object after getting the nodes and drawing the arrows.

(i) Now I'm having the problem that the chart is not rearrange after I clicked the Expand button.

(ii) After I called the FitDocToObjects function, I would like the the blank space covered by the backgroud instead of leaving a blank space.



(iii) I can't move the root node to the center of the page with below codes and hit error "Object reference not found."

Dim rootNode As Node = tl.Root
rootNode.Move(600, 340)
 

(iv) I would like to add some controls into the boxes, kindly guide me on that.

P/S : If you need the full source code just let me know.

Thanks a lot.

Regards.

(ii) Try setting some fixed Width and Height property values for the control. Otherwise it mght resize to become as big as DocExtents.

(iv) You can't use other controls and nodes in NetDiagram. If you just need to show a photo and a button, use the Box.Image property, and use additional attached boxes to mimic buttons.

Stoyan

Hi,

The Width and Height values you set are used as Width and Height of the generated DIV that contains the flowchart image. The DIV background color is set to the flowchart's BackColor. If the image is larger than the fixed-size DIV, there are scrollbars displayed. I am not much into HTML and don't know what is the effect of using % sizes, but from your screenshot it seems the DIV size is set to that of the enclosed image.

The total node count is FlowChart.Boxes.Count, in case you are using only Box nodes. You can find the number of levels by finding the largest distance from leaf nodes to the root. E.g. visit recursively IncomingArrows[0].Origin starting from each leaf node, counting how many levels you visit until the root.

Stoyan

If you are calling root.Move() before TreeLayout.Arrange(), enable the TreeLayout.KeepRootPos property. Otherwise Arrange will move the whole tree to the top-left of the diagram.

By distance I meant the number of levels between nodes, which you can find by passing an integer counter to the recursive function and increasing it with each recursive call.

Stoyan

Call the GetContentRect method after appling the layout to find out the width and height of the whole tree.

If you are calling FitDocToObjects after Arrange, you might not notice that the box has been moved.

Stoyan