TextBox.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / MIT / System / Web / UI / MobileControls / TextBox.cs / 1305376 / TextBox.cs
                        
                        
                            //------------------------------------------------------------------------------ 
// 
//     Copyright (c) Microsoft Corporation.  All rights reserved.
// 
//----------------------------------------------------------------------------- 

using System; 
using System.Collections; 
using System.Collections.Specialized;
using System.ComponentModel; 
using System.ComponentModel.Design;
using System.Drawing;
using System.Web;
using System.Web.UI; 
using System.Web.UI.Design.WebControls;
using System.Web.UI.HtmlControls; 
using System.Security.Permissions; 

namespace System.Web.UI.MobileControls 
{

    /*
     * Mobile TextBox class. 
     *
     * Copyright (c) 2000 Microsoft Corporation 
     */ 
    /// 
    [ 
        ControlBuilderAttribute(typeof(TextBoxControlBuilder)),
        DataBindingHandler("System.Web.UI.Design.TextDataBindingHandler, " + AssemblyRef.SystemDesign),
        DefaultEvent("TextChanged"),
        DefaultProperty("Text"), 
        Designer(typeof(System.Web.UI.Design.MobileControls.TextBoxDesigner)),
        DesignerAdapter(typeof(System.Web.UI.Design.MobileControls.Adapters.DesignerTextBoxAdapter)), 
        ToolboxData("<{0}:TextBox runat=\"server\">"), 
        ToolboxItem("System.Web.UI.Design.WebControlToolboxItem, " + AssemblyRef.SystemDesign),
        ValidationProperty("Text") 
    ]
    [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 TextBox : TextControl, IPostBackDataHandler
    { 
        private static readonly Object EventTextChanged = new Object(); 

        ///  
        /// 
        protected bool LoadPostData(String key, NameValueCollection data)
        {
            bool dataChanged = false; 
            bool handledByAdapter =
                Adapter.LoadPostData(key, data, null, out dataChanged); 
 
            if (!handledByAdapter)
            { 
                String value = data[key];
                if (Text != value)
                {
                    Text = value; 
                    dataChanged = true;    // this will cause a RaisePostDataChangedEvent()
                } 
            } 

            return dataChanged; 
        }

        /// 
        ///  
        protected void RaisePostDataChangedEvent()
        { 
            OnTextChanged(EventArgs.Empty); 
        }
 
        /// 
        protected virtual void OnTextChanged(EventArgs e)
        {
            EventHandler onTextChangedHandler = (EventHandler)Events[EventTextChanged]; 
            if (onTextChangedHandler != null)
            { 
                onTextChangedHandler(this,e); 
            }
        } 

        /// 
        [
            Bindable(true), 
            Browsable(true),
            DefaultValue(false), 
            MobileCategory(SR.Category_Behavior), 
            MobileSysDescription(SR.TextBox_Password)
        ] 
        public bool Password
        {
            get
            { 
                Object b = ViewState["Password"];
                return (b != null) ? (bool)b : false; 
            } 
            set
            { 
                ViewState["Password"] = value;
            }
        }
 
        /// 
        [ 
            Bindable(true), 
            Browsable(true),
            DefaultValue(false), 
            MobileCategory(SR.Category_Behavior),
            MobileSysDescription(SR.TextBox_Numeric)
        ]
        public bool Numeric 
        {
            get 
            { 
                Object b = ViewState["Numeric"];
                return (b != null) ? (bool)b : false; 
            }
            set
            {
                ViewState["Numeric"] = value; 
            }
        } 
 
        /// 
        [ 
            Bindable(true),
            DefaultValue(0),
            MobileCategory(SR.Category_Behavior),
            MobileSysDescription(SR.TextBox_Size) 
        ]
        public int Size 
        { 
            get
            { 
                Object i = ViewState["Size"];
                return((i != null) ? (int)i : 0);
            }
            set 
            {
                if (value < 0) 
                { 
                    throw new ArgumentOutOfRangeException("Size", value,
                        SR.GetString(SR.TextBox_NotNegativeNumber)); 
                }
                ViewState["Size"] = value;
            }
        } 

        ///  
        [ 
            Bindable(true),
            DefaultValue(0), 
            MobileCategory(SR.Category_Behavior),
            MobileSysDescription(SR.TextBox_MaxLength)
        ]
        public int MaxLength 
        {
            get 
            { 
                Object i = ViewState["MaxLength"];
                return((i != null) ? (int)i : 0); 
            }
            set
            {
                if (value < 0) 
                {
                    throw new ArgumentOutOfRangeException("MaxLength", value, 
                        SR.GetString(SR.TextBox_NotNegativeNumber)); 
                }
                ViewState["MaxLength"] = value; 
            }
        }

        ///  
        [
            MobileSysDescription(SR.TextBox_OnTextChanged) 
        ] 
        public event EventHandler TextChanged
        { 
            add
            {
                Events.AddHandler(EventTextChanged, value);
            } 
            remove
            { 
                Events.RemoveHandler(EventTextChanged, value); 
            }
        } 

        /// 
        [
            Bindable(true), 
            DefaultValue(""),
            MobileCategory(SR.Category_Appearance), 
            MobileSysDescription(SR.Input_Title) 
        ]
        public String Title 
        {
            get
            {
                return ToString(ViewState["Title"]); 
            }
            set 
            { 
                ViewState["Title"] = value;
            } 
        }

        internal override bool TrimInnerText
        { 
            get
            { 
                return false; 
            }
        } 

        internal override bool TrimNewlines
        {
            get 
            {
                return true; 
            } 
        }
 
        #region IPostBackDataHandler implementation
        bool IPostBackDataHandler.LoadPostData(String key, NameValueCollection data) {
            return LoadPostData(key, data);
        } 

        void IPostBackDataHandler.RaisePostDataChangedEvent() { 
            RaisePostDataChangedEvent(); 
        }
        #endregion 
    }

    /*
     * TextBox Control Builder 
     *
     * Copyright (c) 2000 Microsoft Corporation 
     */ 

    ///  
    [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 TextBoxControlBuilder : MobileControlBuilder 
    {
        // Textbox allows whitespace inside text. 
 
        /// 
        public override bool AllowWhitespaceLiterals() 
        {
            return true;
        }
    } 

} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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TextBox.cs source code in C# .NET

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