HtmlImage.cs source code in C# .NET

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

/* 
 * HtmlImage.cs 
 *
 * Copyright (c) 2000 Microsoft Corporation 
 */

namespace System.Web.UI.HtmlControls {
 
    using System;
    using System.Globalization; 
    using System.Collections; 
    using System.ComponentModel;
    using System.Web; 
    using System.Web.UI;
    using System.Security.Permissions;

 
/// 
///     
///       The  
///       class defines the methods, properties, and events
///       for the HtmlImage server control. 
///       This class provides programmatic access on the server to
///       the HTML <img> element.
///    
///  
    [
    ControlBuilderAttribute(typeof(HtmlEmptyTagControlBuilder)) 
    ] 
    public class HtmlImage : HtmlControl {
 
        /*
         *  Creates an intrinsic Html IMG control.
         */
 
        /// 
        /// Initializes a new instance of the  class. 
        ///  
        public HtmlImage() : base("img") {
        } 

        /*
         * Alt property
         */ 

        ///  
        ///     
        ///       Gets or sets the alternative caption that the
        ///       browser displays if image is either unavailable or has not been downloaded yet. 
        ///    
        /// 
        [
        WebCategory("Appearance"), 
        Localizable(true),
        DefaultValue(""), 
        DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) 
        ]
        public string Alt { 
            get {
                string s = Attributes["alt"];
                return((s != null) ? s : String.Empty);
            } 
            set {
                Attributes["alt"] = MapStringAttributeToString(value); 
            } 
        }
 
        /*
         * Align property
         */
 
        /// 
        ///    Gets or sets the alignment of the image with 
        ///       surrounding text. 
        /// 
        [ 
        WebCategory("Appearance"),
        DefaultValue(""),
        DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
        ] 
        public string Align {
            get { 
                string s = Attributes["align"]; 
                return((s != null) ? s : String.Empty);
            } 
            set {
                Attributes["align"] = MapStringAttributeToString(value);
            }
        } 

        /* 
         * Border property, size of border in pixels. 
         */
 
        /// 
        ///    
        ///       Gets or sets the width of image border, in pixels.
        ///     
        /// 
        [ 
        WebCategory("Appearance"), 
        DefaultValue(0),
        DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) 
        ]
        public int Border {
            get {
                string s = Attributes["border"]; 
                return((s != null) ? Int32.Parse(s, CultureInfo.InvariantCulture) : -1);
            } 
            set { 
                Attributes["border"] = MapIntegerAttributeToString(value);
            } 
        }

        /*
         * Height property 
         */
 
        ///  
        ///    
        ///       Gets or sets 
        ///       the height of the image. By default, this is expressed in
        ///       pixels,
        ///       but can be a expressed as a percentage.
        ///     
        /// 
        [ 
        WebCategory("Layout"), 
        DefaultValue(100),
        DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden) 
        ]
        public int Height {
            get {
                string s = Attributes["height"]; 
                return((s != null) ? Int32.Parse(s, CultureInfo.InvariantCulture) : -1);
            } 
            set { 
                Attributes["height"] = MapIntegerAttributeToString(value);
            } 
        }

        /*
         * Src property. 
         */
 
        ///  
        ///    
        ///       Gets or sets the name of and path to the 
        ///       image file to be displayed. This can be an absolute or
        ///       relative path.
        ///    
        ///  
        [
        WebCategory("Behavior"), 
        DefaultValue(""), 
        DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden),
        UrlProperty() 
        ]
        public string Src {
            get {
                string s = Attributes["src"]; 
                return((s != null) ? s : String.Empty);
            } 
            set { 
                Attributes["src"] = MapStringAttributeToString(value);
            } 
        }

        /*
         * Width property 
         */
 
        ///  
        ///    
        ///       Gets or sets the width of the image. By default, this is 
        ///       expressed in pixels,
        ///       but can be a expressed as a percentage.
        ///    
        ///  
        [
        WebCategory("Layout"), 
        DefaultValue(100), 
        DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
        ] 
        public int Width {
            get {
                string s = Attributes["width"];
                return((s != null) ? Int32.Parse(s, CultureInfo.InvariantCulture) : -1); 
            }
            set { 
                Attributes["width"] = MapIntegerAttributeToString(value); 
            }
        } 

        /*
         * Override to render unique name attribute.
         * The name attribute is owned by the framework. 
         */
 
        ///  
        /// 
        ///  
        protected override void RenderAttributes(HtmlTextWriter writer) {
            PreProcessRelativeReferenceAttribute(writer, "src");

            base.RenderAttributes(writer); 
            writer.Write(" /");
        } 
 
    }
} 

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

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