How to hide generated javascript file in visual studio code

In this post I am going to show you a cool trick in visual studio code. Let's suppose you are writing typescript code in visual studio code and you want to hide generated javascript code.

Create .vscode folder in your folder and then create settings.json file and paste following code

{ "files.exclude": { "node_modules":true, "**/.git": true, "**/.DS_Store": true, "**/*.js.map": true, "**/*.js": {"when": "$(basename).ts"}     } }

How To display Image using Linq To Sql




Default.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1._Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
   <title></title>
</head>
<body>
   <form id="form1" runat="server">
   <div>
       <asp:GridView ID="grdCategories" runat="server" DataKeyNames="CategoryID" Width="600px"
           AutoGenerateColumns="false">
           <Columns>
               <asp:BoundField DataField="CategoryID" HeaderText="CategoryID" />
               <asp:BoundField DataField="CategoryName" HeaderText="CategoryName" />
               <asp:TemplateField>
                   <ItemTemplate>
                       <asp:Image ID="Image1" runat="server" ImageUrl='<%#"ImageHandler.ashx?CategoryID="+ Eval("CategoryID")  %>' />
                   </ItemTemplate>
               </asp:TemplateField>
           </Columns>
       </asp:GridView>
   </div>
   </form>
</body>
</html>

Default.aspx.cs



using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
   public partial class _Default : System.Web.UI.Page
   {
       protected void Page_Load(object sender, EventArgs e)
       {
           NorthwindDataContext db = new NorthwindDataContext();
           var cate = from c in db.Categories
                      select new
                      {
                          CategoryName = c.CategoryName,
                          CategoryID = c.CategoryID,
                          Image = c.Picture,
                      };
           grdCategories.DataSource = cate;
           grdCategories.DataBind();
       }
   }
}
ImageHandler.ashx
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.IO;
using System.Drawing.Imaging;

namespace WebApplication1
{

   public class ImageHandler : IHttpHandler
   {

       public void ProcessRequest(HttpContext context)
       {
           HttpRequest req = context.Request;
           // string categoryID = "1";
           string categoryID = req.QueryString["CategoryID"].ToString();
           // Get information about the specified category
           NorthwindDataContext db = new NorthwindDataContext();
           var category = from c in db.Categories
                          where Convert.ToInt32(c.CategoryID) == Convert.ToInt32(categoryID)
                          select c.Picture;
           int len = category.First().Length;
           // Output the binary data
           // But first we need to strip out the OLE header
           int OleHeaderLength = 78;
           int strippedImageLength = len - OleHeaderLength;
           byte[] imagdata = new byte[strippedImageLength];
           Array.Copy(category.First().ToArray(), OleHeaderLength, imagdata, 0, strippedImageLength);
           if ((imagdata) != null)
           {
               MemoryStream m = new MemoryStream(imagdata);
               System.Drawing.Image image = System.Drawing.Image.FromStream(m);
               image.Save(context.Response.OutputStream, ImageFormat.Jpeg);
           }
       }

       public bool IsReusable
       {
           get
           {
               return false;
           }
       }
   }
}

Comments

  1. Error 2 The name 'ImageFormat' does not exist in the current context D:\Projects\ContactManager\Handler.ashx 36 55 D:\Projects\ContactManager\

    ReplyDelete
  2. Could not find an implementation of the query pattern for source type 'System.Data.Linq.Table'. 'Select' not found. Are you missing a reference to 'System.Core.dll' or a using directive for 'System.Linq'?

    ReplyDelete
  3. I have tried to do it work but could tell me how images will be uploaded as I am getting Cross signs

    ReplyDelete

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