TextBox::GetRectFromCharacterIndex Method (Int32, Boolean)
.NET Framework (current version)
Returns the rectangle for the leading or trailing edge of the character at the specified index.
Assembly: PresentationFramework (in PresentationFramework.dll)
Parameters
- charIndex
-
Type:
System::Int32
The zero-based character index of the character for which to retrieve the rectangle.
- trailingEdge
-
Type:
System::Boolean
true to get the trailing edge of the character; false to get the leading edge of the character.
Return Value
Type: System.Windows::RectA rectangle for an edge of the character at the specified character index, or Empty if a bounding rectangle cannot be determined.
| Exception | Condition |
|---|---|
| ArgumentOutOfRangeException | 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.
.NET Framework
Available since 3.0
Silverlight
Available since 4.0
Windows Phone Silverlight
Available since 7.0
Available since 3.0
Silverlight
Available since 4.0
Windows Phone Silverlight
Available since 7.0
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