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