1//===============================================================================================
 2//
 3// (c) Copyright Microsoft Corporation.
 4// This source is subject to the Microsoft Permissive License.
 5// See http://www.microsoft.com/resources/sharedsource/licensingbasics/sharedsourcelicenses.mspx.
 6// All other rights reserved.
 7//
 8//===============================================================================================
 9
10using System;
11using System.Data;
12using System.Configuration;
13using System.Web;
14using System.Web.Security;
15using System.Web.UI;
16using System.Web.UI.WebControls;
17using System.Web.UI.WebControls.WebParts;
18using System.Web.UI.HtmlControls;
19using System.ComponentModel;
20
21namespace MyWebPagesStarterKit.Controls
22...{
23    [ToolboxData("<{0}:ResizedImage runat=server></{0}:ResizedImage>")]
24    public class ResizedImage : Image
25    ...{
26        public string SectionId
27        ...{
28            get ...{ return (ViewState["SectionId"] == null) ? string.Empty : (string)ViewState["SectionId"]; }
29            set ...{ ViewState["SectionId"] = value; }
30        }
31
32        public string PageId
33        ...{
34            get ...{ return (ViewState["PageId"] == null) ? string.Empty : (string)ViewState["PageId"]; }
35            set ...{ ViewState["PageId"] = value; }
36        }
37
38        public int MaxWidth
39        ...{
40            get ...{ return (ViewState["MaxWidth"] == null) ? 50 : (int)ViewState["MaxWidth"]; }
41            set ...{ ViewState["MaxWidth"] = value; }
42        }
43
44        public int MaxHeight
45        ...{
46            get ...{ return (ViewState["MaxHeight"] == null) ? 50 : (int)ViewState["MaxHeight"]; }
47            set ...{ ViewState["MaxHeight"] = value; }
48        }
49
50        protected override void OnPreRender(EventArgs e)
51        ...{
52            base.OnPreRender(e);
53            GenerateEmptyAlternateText = true;
54
55            if (SectionId != string.Empty)
56            ...{
57                ImageUrl = string.Format(
58                    "~/ImageHandler.ashx?pg={0}&section={1}&image={2}&height={3}&width={4}",
59                    PageId,
60                    SectionId,
61                    HttpUtility.UrlEncode(ImageUrl),
62                    MaxHeight,
63                    MaxWidth
64                );
65            }
66            else
67            ...{
68                ImageUrl = string.Format(
69                    "~/ImageHandler.ashx?image={0}&height={1}&width={2}",
70                    HttpUtility.UrlEncode(ImageUrl),
71                    MaxHeight,
72                    MaxWidth
73                );
74            }
75            
76        }
77    }
78}