TextBox.GetRectFromCharacterIndex Method (Int32, Boolean)
Returns the rectangle for the leading or trailing edge of the character at the specified index.
Assembly: PresentationFramework (in PresentationFramework.dll)
The zero-based character index of the character for which to retrieve the rectangle.
true to get the trailing edge of the character; false to get the leading edge of the character.
charIndex is negative or is greater than the length of the content.
Because this method returns a rectangle that represents an edge of the character, the width of the rectangle is 0.
Available since 3.0
Available since 4.0
Windows Phone Silverlight
Available since 7.0