122 lines
4.3 KiB
C#
122 lines
4.3 KiB
C#
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//------------------------------------------------------------------------------
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// <copyright file="HtmlTextBoxAdapter.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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using System.Globalization;
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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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* HtmlTextBoxAdapter 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\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter"]/*' />
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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 HtmlTextBoxAdapter : HtmlControlAdapter
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{
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private String _staticValue;
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/// <include file='doc\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter.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\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter.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\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter.Render"]/*' />
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public override void Render(HtmlMobileTextWriter writer)
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{
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writer.EnterLayout(Style);
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writer.WriteBeginTag("input");
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writer.WriteAttribute("name", GetRenderName());
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if ((Control.Text == null || Control.Text.Length > 0) && !Control.Password)
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{
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writer.Write(" value=\"");
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writer.WriteText(Control.Text, true);
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writer.Write("\"");
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}
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if (Control.Size > 0)
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{
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writer.WriteAttribute("size", Control.Size.ToString(CultureInfo.InvariantCulture));
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}
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if (Control.MaxLength > 0)
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{
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writer.WriteAttribute("maxlength", Control.MaxLength.ToString(CultureInfo.InvariantCulture));
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}
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if (Control.Password)
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{
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writer.WriteAttribute("type", "password");
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}
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AddAttributes(writer);
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writer.Write("/>");
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writer.ExitLayout(Style, Control.BreakAfter);
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writer.InputWritten = true;
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}
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internal virtual String GetRenderName()
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{
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String renderName;
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if(Device.RequiresAttributeColonSubstitution)
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{
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renderName = Control.UniqueID.Replace(':', ',');
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}
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else
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{
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renderName = Control.UniqueID;
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}
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return renderName;
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}
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/// <include file='doc\HtmlTextBoxAdapter.uex' path='docs/doc[@for="HtmlTextBoxAdapter.RenderAsHiddenInputField"]/*' />
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protected override void RenderAsHiddenInputField(HtmlMobileTextWriter writer)
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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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writer.WriteHiddenField(Control.UniqueID, Control.Text);
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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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