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//------------------------------------------------------------------------------
// <copyright file="ChtmlTextBoxAdapter.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
using System.Security.Permissions;
#if COMPILING_FOR_SHIPPED_SOURCE
namespace System.Web.UI.MobileControls.ShippedAdapterSource
#else
namespace System.Web.UI.MobileControls.Adapters
#endif
{
/*
* ChtmlTextBoxAdapter class.
*
* Copyright (c) 2000 Microsoft Corporation
*/
/// <include file='doc\ChtmlTextBoxAdapter.uex' path='docs/doc[@for="ChtmlTextBoxAdapter"]/*' />
[AspNetHostingPermission(SecurityAction.LinkDemand, Level=AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand, Level=AspNetHostingPermissionLevel.Minimal)]
[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.")]
public class ChtmlTextBoxAdapter : HtmlTextBoxAdapter
{
private static Random _random = new Random();
/// <include file='doc\ChtmlTextBoxAdapter.uex' path='docs/doc[@for="ChtmlTextBoxAdapter.AddAttributes"]/*' />
protected override void AddAttributes(HtmlMobileTextWriter writer)
{
if (Control.Numeric)
{
if (Device.SupportsInputIStyle)
{
// The default input mode is always numeric if the
// type is password.
if (!Control.Password)
{
writer.WriteAttribute("istyle", "4");
}
}
else if (Device.SupportsInputMode)
{
writer.WriteAttribute("mode", "numeric");
}
}
AddAccesskeyAttribute(writer);
AddJPhoneMultiMediaAttributes(writer);
}
/// <include file='doc\ChtmlTextBoxAdapter.uex' path='docs/doc[@for="ChtmlTextBoxAdapter.RequiresFormTag"]/*' />
public override bool RequiresFormTag
{
get
{
return true;
}
}
private String GetRandomID(int length)
{
Byte[] randomBytes = new Byte[length];
_random.NextBytes(randomBytes);
char[] randomChars = new char[length];
for (int i = 0; i < length; i++)
{
randomChars[i] = (char)((((int)randomBytes[i]) % 26) + 'a');
}
return new String(randomChars);
}
internal override String GetRenderName()
{
String renderName = base.GetRenderName();
if (Device.RequiresUniqueHtmlInputNames)
{
renderName += Constants.SelectionListSpecialCharacter + GetRandomID(4);
}
return renderName;
}
}
}
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