Hi again,

I would like to know how to ask the UndoManager to record text editing (cells & captions in tableNode).

I could use diagram.CellEditing & diagram .CellEdited, but if the user presses ESC or doesn't change anything, how do I erase the ChangeItemCmd?

Thanks,
Marie

Another issue I have:

TableNode.ResizeToFitText doesn't seem to be a recorded action. If I resize the node manually, it's fine, but with that method it's not.

I'm not totally sure this is the cause of a problem I have, so I will describe it:
I have the following code that adds a cell to a table node:

// Count the number of items in that column
int count = 0;
for (int i = 0; i < tableNode.RowCount; i++)
{
    TableNode.Cell cell = tableNode[column, i];
    if (cell != null && cell.Text != null && cell.Text != string.Empty)
	  count++;
}

ChangeItemCmd changeItem = new ChangeItemCmd(tableNode, "Add " + text);

// Add row if necessary
if ((count + 1) >= tableNode.RowCount)
    tableNode.RowCount++;

// Add anchor point
AnchorPoint anchorPoint = GetAnchorPoint(column);
if (anchorPoint == null)
    return;

if (tableNode.Rows[count].AnchorPattern == null)
    tableNode.Rows[count].AnchorPattern = new AnchorPattern();
AnchorPattern anchorPattern = tableNode.Rows[count].AnchorPattern;

anchorPattern.Points.Add((AnchorPoint)anchorPoint.Clone());

// Set text & alignment
int number = count + 1;
tableNode[column, count].Text = text + " " + number;

if (column == OUT_COLUMN)
    tableNode[column, count].TextFormat.Alignment = StringAlignment.Far;

tableNode.ResizeToFitText(false, true);
changeItem.Execute(); 

Everything's fine, except that if I undo the change, my shapeNode button is painted outside the table's borders. That shapenode is attached to the bottom-right corner of the tablenode. After undo, it gets painted at the same position it used to be before the undoing of the cell's addition (outside the table's boundaries since it got smaller). This of course happens only in the case that the cell is added on a new row.

How can I fix those 2 problems (painting of the shapenode + resizeToFixText that is not recorded)?

Thank you,
Marie

Hi Stoyan,

-1- About the ChangeItemCmd: If it never gets executed nor disposed, it's fine? When is it going to be unloaded? I don't want to have memory problems...

-2- About the disappearing nodes after undoing delete: I'll try the composite command, but I think this should already be recorded by UndoManager. If this could be fixed this in future releases, it would be helpful.

-3- About ResizeToFitText that is not recorded: Is it normal or am I doing something wrong? How can I fix this?

-4- About ShapeNode that gets painted outside TableNode's boundaries: What can I do about it?

Thanks,
Marie

Hi Stoyan,

Thanks for you answer!

1) Perfect!

2) It is not recorded (no matter how many times I press undo). The only thing I do is

this.diagram.Nodes.Remove(NodeClicked); 

Its attached shape nodes are deleted by themselves (I think it is because of the node.SubordinateGroup.AutoDeleteItems parameter set to true). Could you try it? If you can't reproduce it, I'll add it to the 3) & 4) demo.

3) & 4) I will do that. Unfortunately, my priority have changed and since undo/redo is not as easy as I thought (but I understand, it's a really complex functionnality), it will take some time. Maybe I will find the answer doing that demo, if so I will post it here.

Regards,
Marie