• DataContext: این شیء اتصالش را به منبع داده‌ها برقرار کرده و هر موقع داده‌ای را نیاز داریم، از طریق این شیء تامین می‌شود.
• DataBinding: یک واسطه بین DataContext و هر آن چیزی است که قرار است از داده‌ها تغذیه کند. در تعریفی رسمی‌تر می‌گوییم: روشی ساده و قدرتمند بوده و واسطی است بین مدل تجاری و رابط کاربری. هر زمانی که داده‌ای تغییر کند، ما را آگاه می‌سازد که می‌تواند یک ارتباط یک طرفه یا دو طرفه باشد.
  
• DataTemplate: نحوه‌ی فرمت بندی و نمایش داده‌ها را تعیین می‌کند.

   public enum FieldOfWork
    {
        Actor=0,
        Director=1,
        Producer=2
    }
    public class Person
    {
        public string Name { get; set; }

        public bool Gender { get; set; }

        public string ImageName { get; set; }

        public string Country { get; set; }

        public DateTime Date { get; set; }

        public IList<FieldOfWork> FieldOfWork { get; set; }
        public static Person GetPerson()
        {
            return new Person()
            {
                Name = "Leo",
                Gender = true,
                ImageName ="man.jpg",
                Country = "Italy",
                Date = DateTime.Now
            };
        }
    }

 DataContext = Person.GetPerson();

public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            DataContext = Person.GetPerson();
        }  
    }

Text="{Binding Name}"

Source="{Binding ImageName}"

using System.Collections.ObjectModel;

namespace test
{
    public class Country
    {
        public string Flag {
            get { return "Images/flags/" + Name + ".png"; }
        }
        public string Name { get; set; }

        public int Id { get; set; }

        public ObservableCollection<Country> GetCountries()
        {
            var countries = new ObservableCollection<Country>();
            countries.Add(new Country(){Id =1,Name = "Afghanistan"});
            countries.Add(new Country() { Id = 2, Name = "Albania" });
            countries.Add(new Country() { Id = 3, Name = "Angola" });

            countries.Add(new Country() { Id = 4, Name = "Bahrain" });
            countries.Add(new Country() { Id = 5, Name = "Bermuda" });
            countries.Add(new Country() { Id =6, Name = "Iran" });

            return countries;
        }
    }
}

UserName: Admin
Password: 1234567@
----------
UserName: Saber_Fatholahi
Password: 1234567@

<input type="file" ngf-select ng-model="picFile" name="file" accept="image/*" ngf-max-size="2MB" required>

<div ngf-drop ng-model="picFile" ngf-pattern="image/*">
     ...
</div>

<i ng-show="myForm.file.$error.required">*required</i><br>
<i ng-show="myForm.file.$error.maxSize">
File too large: max is 2M
</i>

app.controller('MyCtrl', ['$scope', 'Upload', '$timeout', function ($scope, Upload, $timeout) {
    // the method uploadPic called from Angular View
$scope.uploadPic = function(file) {
    file.upload = Upload.upload({
      url: 'https://angular-file-upload-cors-srv.appspot.com/upload',
      data: {file: file, otherData: $scope.otherData},
    });

    file.upload.then(function (response) {
// waiting for response
        $timeout(function () {
file.result = response.data;
        });
    }, function (response) {
//error
        if (response.status > 0)
$scope.errorMsg = response.status + ': ' + response.data;
    }, function (evt) {
//progress
        file.progress = Math.min(100, parseInt(100.0 * evt.loaded / evt.total));
console.log(file.progress);
    });
    }
}]);

protected void Application_BeginRequest(Object sender, EventArgs e)
{
        List<string> toFilter = new List<string> { ".aspx", ".asax", ".asp", ".ashx", ".asmx", ".axd", ".master", ".svc" };
        if (HttpContext.Current != null && HttpContext.Current.Request != null && HttpContext.Current.Request.Files != null)
            for (int i = 0; i < HttpContext.Current.Request.Files.Count; i++)
            {
                string fileNamePath = HttpContext.Current.Request.Files[i].FileName.ToLower();
                string name = Path.GetFileName(fileNamePath);
                string ext = Path.GetExtension(fileNamePath);
                if (toFilter.Contains(ext) || name == "web.config")
                {
                    HttpContext.Current.Response.StatusCode = 403; //Forbidden
                    HttpContext.Current.Response.End();
                }
            }
}

using (var converter = new Converter())
{
   converter.ConvertToPdf(new ConvertUri(SourcePath),
                               "output.pdf",
                               new PageSettings(PaperFormat.A4)
                               {
                                   DisplayHeaderFooter = true,
                                   HeaderTemplate = header,
                                   FooterTemplate = footer,
                                   PrintBackground = true,
                               });
   converter.ConvertToImage(new ConvertUri(tempSourcePath),
                                 "output.png",
                                 new PageSettings(PaperFormat.A6));
}

    var header = """
<div class="text center" style="color: lightgray;border-bottom: solid lightgray 0.1px; width: 100%; font-family: 'Samim'; font-size:7px;">
<span class="title"></span>
</div>
""";
    var footer = """
<div class="text center" style="color: lightgray; font-family: 'Samim'; font-size:7px;">
<span class="pageNumber"></span>/<span class="totalPages"></span>
</div>
""";

 var HTML = "<HTML code>";
 using (Converter converter = new Converter())
 using (MemoryStream stream = new MemoryStream())
 {
     // This is necessary when running on Docker
     converter.AddChromeArgument("--no-sandbox");

     // Create PDF out of HTML string
     converter.ConvertToPdf(html, stream, new ChromeHtmlToPdfLib.Settings.PageSettings());

     // Return file to user
     return File(stream.ToArray(), MediaTypeNames.Application.Pdf, "Report.pdf");
 }