Author: jackson
Date: 2006-12-11 16:31:30 -0500 (Mon, 11 Dec 2006)
New Revision: 69366
Modified:
trunk/mcs/class/Managed.Windows.Forms/System.Windows.Forms/TextBoxBase.cs
Log:
* TextBoxBase.cs: We need to cap this value, since Maximum -
ViewPortHeight can be less than zero.
Modified:
trunk/mcs/class/Managed.Windows.Forms/System.Windows.Forms/TextBoxBase.cs
===================================================================
--- trunk/mcs/class/Managed.Windows.Forms/System.Windows.Forms/TextBoxBase.cs
2006-12-11 21:18:31 UTC (rev 69365)
+++ trunk/mcs/class/Managed.Windows.Forms/System.Windows.Forms/TextBoxBase.cs
2006-12-11 21:31:30 UTC (rev 69366)
@@ -1597,7 +1597,8 @@
}
if (e.Delta < 0)
- vscroll.Value = Math.Min (vscroll.Value +
SystemInformation.MouseWheelScrollLines, vscroll.Maximum -
document.ViewPortHeight + 1);
+ vscroll.Value = Math.Min (vscroll.Value +
SystemInformation.MouseWheelScrollLines,
+ Math.Max (0, vscroll.Maximum -
document.ViewPortHeight + 1));
else
vscroll.Value = Math.Max (0, vscroll.Value -
SystemInformation.MouseWheelScrollLines);
}
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