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//------------------------------------------------------------------------------
// <copyright file="HeaderPanel.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Web.UI.Design.MobileControls.Util
{
using System;
using System.Diagnostics;
using System.Drawing;
using System.Windows.Forms;
[
System.Security.Permissions.SecurityPermission(System.Security.Permissions.SecurityAction.Demand,
Flags=System.Security.Permissions.SecurityPermissionFlag.UnmanagedCode)
]
[Obsolete("The System.Web.Mobile.dll assembly has been deprecated and should no longer be used. For information about how to develop ASP.NET mobile applications, see http://go.microsoft.com/fwlink/?LinkId=157231.")]
internal class HeaderPanel : Panel
{
private int _recursionCount = 0;
internal void RequestNewHeight(HeaderLabel header, int height)
{
int offset = height - header.Height;
try
{
// This is a workaround for a RTB issue that causes their
// algorithm to ---- up if OnContentsResize recurses. (Now
// that HeaderLabel does not resize the text untill after
// autoscaling, we do not seem to hit this, but just in case).
//
// On the first call the RTB guesses its best dimensions
// for the given text. We correct the Width which may cause
// a second recursive call to adjust the height.
if(_recursionCount < 2)
{
_recursionCount++;
header.Height = height;
//
foreach(Control child in Controls)
{
if(child.Top > header.Top)
{
child.Top += offset;
}
}
for(
Control controlIterator = this;
controlIterator != null;
controlIterator = controlIterator.Parent
) {
controlIterator.Height += offset;
}
}
else
{
Debug.Assert(offset == 0,
"On 3rd recursive call offset is not yet stabalized."
);
}
}
finally
{
_recursionCount = 0;
}
}
protected override void OnSizeChanged(EventArgs e)
{
foreach(Control child in Controls)
{
if(child is HeaderLabel)
{
child.Width = Width;
}
}
base.OnSizeChanged(e);
}
}
}
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