From 960ae38ecdc1a6b5a75dce50a2f53c54fa1b9d1f Mon Sep 17 00:00:00 2001 From: Dariusz Komosinski Date: Sat, 28 Nov 2020 16:51:30 +0100 Subject: [PATCH] Fix TextBox crashing when PointerMoved gets called and text presenter has 0 size. --- src/Avalonia.Controls/TextBox.cs | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/Avalonia.Controls/TextBox.cs b/src/Avalonia.Controls/TextBox.cs index 0fe3ac62e4..28426ee70f 100644 --- a/src/Avalonia.Controls/TextBox.cs +++ b/src/Avalonia.Controls/TextBox.cs @@ -867,7 +867,10 @@ namespace Avalonia.Controls { var point = e.GetPosition(_presenter); - point = new Point(MathUtilities.Clamp(point.X, 0, _presenter.Bounds.Width - 1), MathUtilities.Clamp(point.Y, 0, _presenter.Bounds.Height - 1)); + point = new Point( + MathUtilities.Clamp(point.X, 0, Math.Max(_presenter.Bounds.Width - 1, 0)), + MathUtilities.Clamp(point.Y, 0, Math.Max(_presenter.Bounds.Height - 1, 0))); + CaretIndex = SelectionEnd = _presenter.GetCaretIndex(point); } }