147 lines
4.9 KiB
C#
147 lines
4.9 KiB
C#
//------------------------------------------------------------------------------
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// <copyright file="WmlTextBoxAdapter.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;
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using System.Globalization;
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using System.IO;
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using System.Web;
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using System.Web.UI;
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using System.Web.UI.MobileControls;
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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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* WmlTextBoxAdapter 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\WmlTextBoxAdapter.uex' path='docs/doc[@for="WmlTextBoxAdapter"]/*' />
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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 WmlTextBoxAdapter : WmlControlAdapter
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{
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private String _staticValue;
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/// <include file='doc\WmlTextBoxAdapter.uex' path='docs/doc[@for="WmlTextBoxAdapter.Control"]/*' />
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protected new TextBox Control
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{
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get
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{
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return (TextBox)base.Control;
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}
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}
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/// <include file='doc\WmlTextBoxAdapter.uex' path='docs/doc[@for="WmlTextBoxAdapter.OnInit"]/*' />
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public override void OnInit(EventArgs e)
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{
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_staticValue = Control.Text;
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base.OnInit(e);
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}
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/// <include file='doc\WmlTextBoxAdapter.uex' path='docs/doc[@for="WmlTextBoxAdapter.Render"]/*' />
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public override void Render(WmlMobileTextWriter writer)
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{
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String value = Control.Text;
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bool requiresRandomID = RequiresRandomID();
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writer.EnterLayout(Style);
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if (Control.Password)
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{
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value = String.Empty;
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}
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if (!PageAdapter.RequiresValueAttributeInInputTag())
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{
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writer.AddFormVariable(Control.ClientID, value, requiresRandomID);
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}
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else
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{
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// This is to make sure an id is determined in the first
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// pass, and this is done in AddFormVariable as well.
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writer.MapClientIDToShortName(Control.ClientID, requiresRandomID);
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}
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String format = ((IAttributeAccessor)Control).GetAttribute("wmlFormat");
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if (String.IsNullOrEmpty(format))
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{
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if (Control.Numeric)
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{
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format = "*N";
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}
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else
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{
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format = null;
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}
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}
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writer.RenderTextBox(Control.ClientID,
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value,
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format,
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Control.Title,
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Control.Password,
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Control.Size,
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Control.MaxLength,
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requiresRandomID,
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Control.BreakAfter);
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writer.ExitLayout(Style);
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}
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private bool RequiresRandomID()
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{
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String randomID = ((IAttributeAccessor)Control).GetAttribute("useRandomID");
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if (randomID != null)
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{
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return String.Compare(randomID, "true", StringComparison.OrdinalIgnoreCase) == 0;
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}
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else
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{
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return Control.Password;
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}
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}
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/// <include file='doc\WmlTextBoxAdapter.uex' path='docs/doc[@for="WmlTextBoxAdapter.GetPostBackValue"]/*' />
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protected override String GetPostBackValue()
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{
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// Optimization - if viewstate is enabled for this control, and the
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// postback returns to this page, we just let it do the trick.
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if (Control.Form.Action.Length > 0 || (!IsViewStateEnabled() && Control.Text != _staticValue))
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{
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return Control.Text;
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}
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else
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{
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return null;
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}
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}
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private bool IsViewStateEnabled()
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{
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Control ctl = Control;
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while (ctl != null)
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{
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if (!ctl.EnableViewState)
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{
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return false;
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}
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ctl = ctl.Parent;
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}
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return true;
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}
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}
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}
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