Every Question..What does it mean? Why is this? How it works?
Microsoft .Net (pronounced dot (.) net) may be a package element that runs on the Windows software package.
.Net provides tools and libraries that change developers to form Windows package a lot of quicker and easier.
Microsoft describes it as:".Net is that the Microsoft internet Service strategy to attach data, people,
system and devices through software".I'm Choulla Naresh..!
Monday, August 1, 2016
Friday, July 29, 2016
how to paste in cmd prompt using keyboard.. without mouse
ALT+ Space E P : ALT+Space for System Menu E for Edit sub-menu P for Paste item ... njoy..:)
Thursday, July 28, 2016
Downloading Files in ASP.NET MVC
namespace
My.Models
{
public class DataClasses
{
public List<FileNames>
GetFiles()
{
List<FileNames> lstFiles = new List<FileNames>();
DirectoryInfo dirInfo = new DirectoryInfo(HostingEnvironment.MapPath("~/Files"));
int i = 0;
foreach (var item in dirInfo.GetFiles())
{
lstFiles.Add(new FileNames()
{
FileId = i + 1,
FileName = item.Name,
FilePath = dirInfo.FullName + @"\" + item.Name
});
i = i + 1;
}
return lstFiles;
}
}
public class FileNames
{
public int FileId { get; set; }
public string FileName { get; set; }
public string FilePath { get; set; }
}
}
namespace My.Controllers
{
public class ReportsController : Controller
{
DataClasses objData;
public
ReportsController()
{
objData = new DataClasses();
}
//
// GET: /Reports/
public ActionResult Index()
{
var files =
objData.GetFiles();
return View(files);
}
public FileResult Download(string id)
{
int fid = Convert.ToInt32(id);
var files =
objData.GetFiles();
string filename =
(from f in files
where f.FileId == fid
select f.FilePath).First();
string contentType
= "application/pdf";
//Parameters to file are
//1. The File Path on the File
Server
//2. The content type MIME type
//3. The parameter for the file
save by the browser
return File(filename,
contentType, "Report.pdf");
}
}
}
model
IEnumerable<my.models.filenames>
@{
ViewBag.Title = "Index";
}
<h2>Index</h2>
<p>
@Html.ActionLink("Create
New", "Create")
</p>
<table>
<tr>
<th>
FileId
</th>
<th>
FileName
</th>
</tr>
@foreach (var item in Model)
{
<tr>
<td>
@Html.DisplayFor(modelItem
=> item.FileId)
</td>
<td>
@Html.DisplayFor(modelItem
=> item.FileName)
</td>
<td>
@Html.ActionLink("Download", "Download", new { id =
item.FileId })
</td>
</tr>
}
</table>
Not Working https://ci4.googleusercontent.com/proxy/1G6grh1raakXp8PvPCJANFOKCJ4nFF3nuJoQB4sGWQ94Dm0Mqs2rQ8WgrOlEAqRPe54_zJ3s48ydA8foxj3S7ye7o3rlGCBYE1LCc0EGCFFRXRO2fiZxfgkjoOk=s0-d-e1-ft#https://IMAGEURL
This is something related to CACHING concept. suppose, you have recently deployed your php code on your server but you forgot to upload images. you tested once with your email logic. your system generated an HTML email. When this email will hit the gmail server GoogleImageProxy will try to fetch and store the images from your site to its own proxy server. while fetching the images, GoogleImageProxy found some 404 statuses against your missing images and 403 against some protected images. GoogleImagesProxy has stored these statuses into its own proxy server.
Now tried to open your email, you noticed some 404 statuses against your images. This is something understandable. You immediately realized that you forgot to upload some images, so you uploaded them to your server. and also you have fixed some permissions against protected images.
You are all done now. Now you try to run your php-email script once again. As a result you receive another email in your Gmail or Hotmail inbox. you had fixed all the issues with your images. Now the images must be displayed in your email content. but you are still unable to see the images.
Ah, possibly you forgot to clear your browser's cache. Clear your browser's cache and load the gmail or hotmail page once again. But the result will be still the same. Try to apply dozens of fixes/patches and try to run your php-email script a thousands time. But the result will be still the same. No improvement.
THE REAL PROBLEM
What the hell is going on? Let me explain it to you. Go to your access log and try to find requests from GoogleImageProxy. You'll be surprised to see that there will be only 2 or 3 three requests from GoogleImageProxy depending on the number of different images used in your email. GoogleImageProxy never tried to fetch images Even after you have fixed the issues with your images by uploading missing images and setting permissions for protected images. Why? Clearing your browser's cache has no impact. GoogleImageProxy will never fetch the fresh images even for your newer email because the images are now cached into GoogleImageProxy along with their last status code and not cached in your own browser's.
GoogleImageProxy has set its own expiry date for the images. I think one month. so now the fresh copy of images will be fetch after expiry date. I mean after one month. You can not force GoogleImageProxy to fetch the images. But its important for you to display images in your email. What can be the solution?
THE SOLUTION
Following is the only way to force GoogleImageProxy to fetch your images
- Rename your images to something else with png, jpg or gif extensions only.
- Don't use any kind of query string in your image url like
?t=34343
- your image must include png, jpg or gif as an extension.
- your image url must be mapped onto your image directly.
- If you need to use some proxy url for your protected images then your response must include the proper header like
Content-Type: image/jpeg
- File extension and content-type header must match
- Status-code must be 200 instead of 403, 500 etc
IMPORTANT NOTE
Try to repeat the whole process for every run of php-email script. because every time GoogleImageProxy will cache your images and you'll have to repeat the same process for every new try.
Wednesday, July 20, 2016
asp.net mvc @Html.CheckBoxFor dynamic
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
namespace CorePartners_Site2.Models
{
public class CareerForm
{
//....
public List<CheckBoxes> EmploymentType { get; set; }
}
}
public class CheckBoxes
{
public string Text { get; set; }
public bool Checked { get; set; }
}
and added at my form
@Html.CheckBoxFor(model => model.EmploymentType, new { id = "employmentType_1" })
@Html.CheckBoxFor(model => model.EmploymentType, new { id = "employmentType_2" })
@Html.CheckBoxFor(model => model.EmploymentType, new { id = "employmentType_3" })
CheckBoxFor
takes a bool
, you're passing a List<CheckBoxes>
to it. You'd need to do:
@for (int i = 0; i < Model.EmploymentType.Count; i++)
{
@Html.CheckBoxFor(m => m.EmploymentType[i].Checked, new { id = "employmentType_" + i })
@Html.HiddenFor(m => m.EmploymentType[i].Text)
@Html.DisplayFor(m => m.EmploymentType[i].Text)
}
Notice I've added a HiddenFor
for the Text
property too, otherwise you'd lose that when you posted the form, so you wouldn't know which items you'd checked.
Edit, as shown in your comments, your EmploymentType
list is null
when the view is served. You'll need to populate that too, by doing this in your action method:
public ActionResult YourActionMethod()
{
CareerForm model = new CareerForm();
model.EmploymentType = new List<CheckBox>
{
new Checkbox { Text = "Fulltime" },
new Checkbox { Text = "Partly" },
new Checkbox { Text = "Contract" }
};
return View(model);
}
Set the Reference Path (C#)
To set a reference path
- In Solution Explorer, select the project.
- On the Project menu, click <Project Name> Properties.
- Click Reference Paths.
- In the Folder text box, specify the path of the folder that contains assemblies. To browse to the folder, click the ellipsis (…).
- Click Add Folder.
To overwrite a reference path
- In Solution Explorer, select the project.
- On the Project menu, click <Project Name> Properties.
- Click Reference Paths.
- In the Reference Path box, select the path to overwrite.
- In the Folder text box, specify the path of the folder that contains assemblies. To browse to the path, click the ellipsis (…).
- Click Update. The path selected in the Reference Path box is overwritten with the path specified in the Folder text box.
To remove a reference path
- In Solution Explorer, select the project.
- On the Project menu, click <Project Name> Properties.
- Click Reference Paths.
- In the Reference Path box, select the path to remove.
- Click Remove.
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