Returns the position at an offset of the current position, optionally not counting some positions.

Namespace:  C1.Phone.RichTextBox.Documents
Assembly:  C1.Phone.RichTextBox (in C1.Phone.RichTextBox.dll)

Syntax

C#
public C1TextPointer GetPositionAtOffset(
	int offset,
	Predicate<Tag> tagFilter
)
Visual Basic
Public Function GetPositionAtOffset ( _
	offset As Integer, _
	tagFilter As Predicate(Of Tag) _
) As C1TextPointer

Parameters

offset
Type: System..::..Int32
The offset.
tagFilter
Type: System..::..Predicate<(Of <(<'Tag>)>)>
A predicate that can be called to check if a Tag should count as offset. The predicate should return true iff the tag doesn't count. Can be null, which means no filter.

Return Value

A new position at the offset indicated, or null if the offset goes off the document.

Remarks

This method can be used to linearly traverse a C1Document tree.

Start and end tags in each C1TextElement count as items for the traverse, for instance if the position is in an element with children, a position at offset 1 will be the ContentStart of the C1TextElement where this C1TextPointer is positioned.

If this C1TextPointer is positioned in a C1Run then it traverses the text of the C1Run.

See Also