lorsque mon image est vide IE la dessine comme une croix rouge. Est-il possible d'éviter de dessiner une croix rouge? Ou comme j'ai Image asp Je peux le rendre invisible, mais j'ai besoin de vérifier si cette image contient quelque chose ou non.IE image vide = croix rouge: -/
<asp:Image ID="Image1" runat="server" ImageUrl="Handler.ashx"/>
Je dois charger dans byte [] x = {??? } un pixel blanc en format image/jpeg
ma solution me rend fou! ici est-il:
<%@ WebHandler Language="C#" Class="Handler" %>
using System;
using System.IO;
using System.Web;
using Auth;
using System.Configuration;
public class Handler : IHttpHandler
{
public bool IsReusable
{ get{ return false; } }
public void ProcessRequest(HttpContext context)
{
context.Response.Clear();
context.Response.ContentType = "image/jpeg";
byte[] imageContent = Auth.User.GetImageFromDataBase();
if (imageContent != null)
context.Response.OutputStream.Write(imageContent, 0, imageContent.Length);
else
{
byte[] x = {0xff, 0xd8, 0xff, 0xe0, 0x0, 0x10, 0x4a, 0x46, 0x49, 0x46, 0x0, 0x1, 0x2, 0x0, 0x0, 0x64,
0x0, 0x64, 0x0, 0x0, 0xff, 0xec, 0x0, 0x11, 0x44, 0x75, 0x63, 0x6b, 0x79, 0x0, 0x1, 0x0,
0x4, 0x0, 0x0, 0x0, 0x1b, 0x0, 0x0, 0xff, 0xee, 0x0, 0xe, 0x41, 0x64, 0x6f, 0x62, 0x65,
0x0, 0x64, 0xc0, 0x0, 0x0, 0x0, 0x1, 0xff, 0xdb, 0x0, 0x84, 0x0, 0x11, 0xc, 0xc, 0xc,
0xd, 0xc, 0x11, 0xd, 0xd, 0x11, 0x19, 0x10, 0xe, 0x10, 0x19, 0x1d, 0x16, 0x11, 0x11, 0x16,
0x1d, 0x22, 0x17, 0x17, 0x17, 0x17, 0x17, 0x22, 0x21, 0x1a, 0x1d, 0x1c, 0x1c, 0x1d, 0x1a, 0x21,
0x21, 0x26, 0x28, 0x2b, 0x28, 0x26, 0x21, 0x34, 0x34, 0x38, 0x38, 0x34, 0x34, 0x41, 0x41, 0x41,
0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x1, 0x12, 0x10, 0x10,
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0x35, 0x2f, 0x32, 0x2b, 0x2b, 0x2b, 0x32, 0x2f, 0x39, 0x39, 0x35, 0x35, 0x39, 0x39, 0x41, 0x41,
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0x11, 0x8, 0x0, 0x64, 0x0, 0x64, 0x3, 0x1, 0x22, 0x0, 0x2, 0x11, 0x1, 0x3, 0x11, 0x1,
0xff, 0xc4, 0x0, 0x75, 0x0, 0x1, 0x0, 0x3, 0x1, 0x1, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0,
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0xc8, 0x63, 0xda, 0xe7, 0x7f, 0x4e, 0x72, 0x7, 0x58, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x8b,
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0x43, 0xdc, 0xad, 0x73, 0x9b, 0xd5, 0x11, 0x75, 0x2a, 0xe3, 0x3e, 0x74, 0x35, 0x66, 0x5a, 0xc7,
0x2b, 0xde, 0x61, 0xb1, 0x2c, 0x4c, 0xe3, 0xd6, 0x65, 0x64, 0x6f, 0x73, 0x5b, 0x22, 0x2c, 0x98,
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0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0xff, 0xd9};
context.Response.OutputStream.Write(x, 0, x.Length);
}
}
}
Recherchez également "images cassées" ici, qui vous donnera un certain nombre d'options alternatives. – Lazarus
@Lazarus que voulez-vous dire? . . . – Cynede
utilisez le champ de recherche en haut de cette page pour rechercher des "images cassées" et vous verrez toute une série de questions et de réponses liées à la même question que vous avez, à savoir les balises img faisant référence à des images qui n'existent plus ou été déplacé. – Lazarus