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//------------------------------------------------------------------------------
// <copyright file="WmlTextBoxAdapter.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
using System;
using System.Globalization;
using System.IO;
using System.Web;
using System.Web.UI;
using System.Web.UI.MobileControls;
using System.Security.Permissions;
#if COMPILING_FOR_SHIPPED_SOURCE
namespace System.Web.UI.MobileControls.ShippedAdapterSource
#else
namespace System.Web.UI.MobileControls.Adapters
#endif
{
/*
* WmlTextBoxAdapter class.
*
* Copyright (c) 2000 Microsoft Corporation
*/
/// <include file='doc\WmlTextBoxAdapter.uex' path='docs/doc[@for="WmlTextBoxAdapter"]/*' />
[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 WmlTextBoxAdapter : WmlControlAdapter
{
private String _staticValue;
/// <include file='doc\WmlTextBoxAdapter.uex' path='docs/doc[@for="WmlTextBoxAdapter.Control"]/*' />
protected new TextBox Control
{
get
{
return (TextBox)base.Control;
}
}
/// <include file='doc\WmlTextBoxAdapter.uex' path='docs/doc[@for="WmlTextBoxAdapter.OnInit"]/*' />
public override void OnInit(EventArgs e)
{
_staticValue = Control.Text;
base.OnInit(e);
}
/// <include file='doc\WmlTextBoxAdapter.uex' path='docs/doc[@for="WmlTextBoxAdapter.Render"]/*' />
public override void Render(WmlMobileTextWriter writer)
{
String value = Control.Text;
bool requiresRandomID = RequiresRandomID();
writer.EnterLayout(Style);
if (Control.Password)
{
value = String.Empty;
}
if (!PageAdapter.RequiresValueAttributeInInputTag())
{
writer.AddFormVariable(Control.ClientID, value, requiresRandomID);
}
else
{
// This is to make sure an id is determined in the first
// pass, and this is done in AddFormVariable as well.
writer.MapClientIDToShortName(Control.ClientID, requiresRandomID);
}
String format = ((IAttributeAccessor)Control).GetAttribute("wmlFormat");
if (String.IsNullOrEmpty(format))
{
if (Control.Numeric)
{
format = "*N";
}
else
{
format = null;
}
}
writer.RenderTextBox(Control.ClientID,
value,
format,
Control.Title,
Control.Password,
Control.Size,
Control.MaxLength,
requiresRandomID,
Control.BreakAfter);
writer.ExitLayout(Style);
}
private bool RequiresRandomID()
{
String randomID = ((IAttributeAccessor)Control).GetAttribute("useRandomID");
if (randomID != null)
{
return String.Compare(randomID, "true", StringComparison.OrdinalIgnoreCase) == 0;
}
else
{
return Control.Password;
}
}
/// <include file='doc\WmlTextBoxAdapter.uex' path='docs/doc[@for="WmlTextBoxAdapter.GetPostBackValue"]/*' />
protected override String GetPostBackValue()
{
// Optimization - if viewstate is enabled for this control, and the
// postback returns to this page, we just let it do the trick.
if (Control.Form.Action.Length > 0 || (!IsViewStateEnabled() && Control.Text != _staticValue))
{
return Control.Text;
}
else
{
return null;
}
}
private bool IsViewStateEnabled()
{
Control ctl = Control;
while (ctl != null)
{
if (!ctl.EnableViewState)
{
return false;
}
ctl = ctl.Parent;
}
return true;
}
}
}
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