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//------------------------------------------------------------------------------
// <copyright file="HtmlTextBoxAdapter.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
using System.Security.Permissions;
using System.Globalization;
#if COMPILING_FOR_SHIPPED_SOURCE
namespace System.Web.UI.MobileControls.ShippedAdapterSource
#else
namespace System.Web.UI.MobileControls.Adapters
#endif
{
/*
* HtmlTextBoxAdapter class.
*
* Copyright (c) 2000 Microsoft Corporation
*/
/// <include file='doc\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter"]/*' />
[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 HtmlTextBoxAdapter : HtmlControlAdapter
{
private String _staticValue;
/// <include file='doc\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter.Control"]/*' />
protected new TextBox Control
{
get
{
return (TextBox)base.Control;
}
}
/// <include file='doc\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter.OnInit"]/*' />
public override void OnInit(EventArgs e)
{
_staticValue = Control.Text;
base.OnInit(e);
}
/// <include file='doc\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter.Render"]/*' />
public override void Render(HtmlMobileTextWriter writer)
{
writer.EnterLayout(Style);
writer.WriteBeginTag("input");
writer.WriteAttribute("name", GetRenderName());
if ((Control.Text == null || Control.Text.Length > 0) && !Control.Password)
{
writer.Write(" value=\"");
writer.WriteText(Control.Text, true);
writer.Write("\"");
}
if (Control.Size > 0)
{
writer.WriteAttribute("size", Control.Size.ToString(CultureInfo.InvariantCulture));
}
if (Control.MaxLength > 0)
{
writer.WriteAttribute("maxlength", Control.MaxLength.ToString(CultureInfo.InvariantCulture));
}
if (Control.Password)
{
writer.WriteAttribute("type", "password");
}
AddAttributes(writer);
writer.Write("/>");
writer.ExitLayout(Style, Control.BreakAfter);
writer.InputWritten = true;
}
internal virtual String GetRenderName()
{
String renderName;
if(Device.RequiresAttributeColonSubstitution)
{
renderName = Control.UniqueID.Replace(':', ',');
}
else
{
renderName = Control.UniqueID;
}
return renderName;
}
/// <include file='doc\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter.RenderAsHiddenInputField"]/*' />
protected override void RenderAsHiddenInputField(HtmlMobileTextWriter writer)
{
// 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))
{
writer.WriteHiddenField(Control.UniqueID, Control.Text);
}
}
private bool IsViewStateEnabled()
{
Control ctl = Control;
while (ctl != null)
{
if (!ctl.EnableViewState)
{
return false;
}
ctl = ctl.Parent;
}
return true;
}
}
}
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