Displaying custom context menu after document resize OR scroll

[Cameron Molyneux]

We display a context menu when the user clicks on a field in the document

We use the code

synopticPopup = new RadContextMenu();
synopticPopup.PlacementRectangle = plcRect;
synopticPopup.Placement = PlacementMode.RelativePoint;
synopticPopup.PlacementTarget = this.documenteditor.document;
synopticPopup.IconColumnWidth = 0;

to try and ensure the conext menu appears in the correct place but if we scroll the document OR we resize the window this does not work

is there a way to ensure it takes into account these things?
many thanks

[Martin Ivanov]

Hello Cameron,
You can set the PlacementTarget to the instance of RadRichTextBox and then get the proper coordinates from the event arguments, for example:

this.radRichTextBox1.MouseRightButtonDown += radRichTextBox1_MouseRightButtonDown;

void radRichTextBox1_MouseRightButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
        {
            Point p = e.GetPosition(this.radRichTextBox1);
            RadContextMenu synopticPopup = new RadContextMenu();

            synopticPopup.Placement = PlacementMode.RelativePoint;
            synopticPopup.PlacementTarget = this.radRichTextBox1;
            synopticPopup.IconColumnWidth = 0;
            synopticPopup.HorizontalOffset = p.X;
            synopticPopup.VerticalOffset = p.Y;
            synopticPopup.IsOpen = true;
            TextBlock block = new TextBlock();
            block.Text = "work";
            synopticPopup.Items.Add(block);
        }

Don't hesitate to contact us if you have other questions.

Greetings,
Martin
the Telerik team

[Cameron Molyneux]

unfortnately this doesnt help as this is based on where i click my mouse

I need to place the popup at the same place as the field (but I do not want to insert anything into the document as this gave us other problems)

So basically i need to find the field under the cursor and get the top X and Y for the field to place the pop up there

The reason for this is when I hit return in the text box I have displayed .. I want to move to the next field and the popup to move there also

This is proving very difficult to do!  maybe i'm missing something

[Martin Ivanov]

Hello Cameron,
You can create a document position, move it to the wanted inline element and then use the ActiveEditorPresenter to get the view point for this position, for example:

Inline elementUnderMouse = this.radRichTextBox1.Document.CaretPosition.GetCurrentInlineBox().AssociatedInline;
            if (elementUnderMouse.FieldStart == null)
            {
                return;
            }
            RadContextMenu synopticPopup = new RadContextMenu();

            DocumentPosition position = new DocumentPosition(this.radRichTextBox1.Document);
            position.MoveToInline(elementUnderMouse.GetAssociatedLayoutBoxes().First() as InlineLayoutBox, 0);
            Point p = this.radRichTextBox1.ActiveEditorPresenter.GetViewPointFromDocumentPosition(position);

            synopticPopup.Placement = PlacementMode.RelativePoint;
            synopticPopup.PlacementTarget = this.radRichTextBox1;
            synopticPopup.IconColumnWidth = 0;
            synopticPopup.HorizontalOffset = p.X;
            synopticPopup.VerticalOffset = p.Y;
            synopticPopup.IsOpen = true;

You can obtain the InlineLayoutBox from the current caret position or from the current field.
If you have any issues contact us back. Greetings,
Martin
the Telerik team