Number of items :<span data-bind="text: myList().count"></span>
using System;
using System.Collections.Generic;
namespace MvcApplication17.Models
{
public class Employee
{
public int Id { set; get; }
public string FirstName { get; set; }
public string LastName { get; set; }
public DateTime AddDate { get; set; }
public double Salary { get; set; }
public IList<Project> Projects { get; set; }
}
}
namespace MvcApplication17.Models
{
public class Project
{
public int Id { set; get; }
public string Name { set; get; }
}
}
using System;
using System.Collections.Generic;
namespace MvcApplication17.Models
{
public static class EmployeeDataSource
{
public static IList<Employee> CreateEmployees()
{
var list = new List<Employee>();
var rnd = new Random();
for (int i = 1; i <= 1000; i++)
{
list.Add(new Employee
{
Id = i + 1000,
FirstName = "fName " + i,
LastName = "lName " + i,
AddDate = DateTime.Now.AddYears(-rnd.Next(1, 10)),
Salary = rnd.Next(400, 3000),
Projects = CreateRandomProjects()
});
}
return list;
}
private static IList<Project> CreateRandomProjects()
{
var list = new List<Project>();
var rnd = new Random();
for (int i = 0; i < rnd.Next(1, 7); i++)
{
list.Add(new Project
{
Id = i,
Name = "Project " + i
});
}
return list;
}
}
}
using System.Web.Mvc;
using MvcApplication17.Models;
namespace MvcApplication17.Controllers
{
public class HomeController : Controller
{
[HttpPost]
public ActionResult Delete(int? id)
{
return RedirectToAction("Index");
}
[HttpGet]
public ActionResult Edit(int? id)
{
return View();
}
[HttpGet]
public ActionResult Index(string sort, string sortdir, int? page = 1)
{
var list = EmployeeDataSource.CreateEmployees();
return View(list);
}
}
}
http://localhost:3034/?sort=LastName&sortdir=ASC&page=3
@using System.Globalization
@model IList<MvcApplication17.Models.Employee>
@{
ViewBag.Title = "Index";
}
@helper WebGridPageFirstItem(WebGrid grid)
{
@(((grid.PageIndex + 1) * grid.RowsPerPage) - (grid.RowsPerPage - 1));
}
@helper WebGridPageLastItem(WebGrid grid)
{
if (grid.TotalRowCount < (grid.PageIndex + 1 * grid.RowsPerPage))
{
@grid.TotalRowCount;
}
else
{
@((grid.PageIndex + 1) * grid.RowsPerPage);
}
}
<h2>Employees List</h2>
@{
var grid = new WebGrid(
source: Model,
canPage: true,
rowsPerPage: 10,
canSort: true,
defaultSort: "FirstName"
);
var salaryPageSum = 0;
var taxPageSum = 0;
var rowIndex = ((grid.PageIndex + 1) * grid.RowsPerPage) - (grid.RowsPerPage - 1);
}
<div id="container">
@grid.GetHtml(
tableStyle: "webgrid",
headerStyle: "webgrid-header",
footerStyle: "webgrid-footer",
alternatingRowStyle: "webgrid-alternating-row",
selectedRowStyle: "webgrid-selected-row",
rowStyle: "webgrid-row-style",
htmlAttributes: new { id = "MyGrid" },
mode: WebGridPagerModes.All,
columns: grid.Columns(
grid.Column(header: "#",
style: "text-align-center-col",
format: @<text>@(rowIndex++)</text>),
grid.Column(columnName: "FirstName", header: "First Name",
format: @<span style='font-weight: bold'>@item.FirstName</span>,
style: "text-align-center-col"),
grid.Column(columnName: "LastName", header: "Last Name"),
grid.Column(header: "Image",
style: "text-align-center-col",
format: @<text><img alt="@item.Id" src="@Url.Content("~/images/" + @item.Id + ".jpg")" /></text>),
grid.Column(columnName: "AddDate", header: "Start",
style: "text-align-center-col",
format: item =>
{
int ym = item.AddDate.Year;
int mm = item.AddDate.Month;
int dm = item.AddDate.Day;
var persianCalendar = new PersianCalendar();
int ys = persianCalendar.GetYear(new DateTime(ym, mm, dm, new GregorianCalendar()));
int ms = persianCalendar.GetMonth(new DateTime(ym, mm, dm, new GregorianCalendar()));
int ds = persianCalendar.GetDayOfMonth(new DateTime(ym, mm, dm, new GregorianCalendar()));
return ys + "/" + ms.ToString("00") + "/" + ds.ToString("00");
}),
grid.Column(columnName: "Salary", header: "Salary",
format: item =>
{
salaryPageSum += item.Salary;
return string.Format("${0:n0}", item.Salary);
},
style: "text-align-center-col"),
grid.Column(header: "Tax", canSort: true,
format: item =>
{
var tax = item.Salary * 0.2;
taxPageSum += tax;
return string.Format("${0:n0}", tax);
}),
grid.Column(header: "Projects", columnName: "Projects",
style: "text-align-center-col",
format: item =>
{
var subGrid = new WebGrid(
source: item.Projects,
canPage: false,
canSort: false
);
return subGrid.GetHtml(
htmlAttributes: new { id = "MySubGrid" },
tableStyle: "webgrid",
headerStyle: "webgrid-header",
footerStyle: "webgrid-footer",
alternatingRowStyle: "webgrid-alternating-row",
selectedRowStyle: "webgrid-selected-row",
rowStyle: "webgrid-row-style"
);
}),
grid.Column(header: "",
style: "text-align-center-col",
format: item => @Html.ActionLink(linkText: "Edit", actionName: "Edit",
controllerName: "Home", routeValues: new { id = item.Id },
htmlAttributes: null)),
grid.Column(header: "",
format: @<form action="/Home/Delete/@item.Id" method="post"><input type="submit"
onclick="return confirm('Do you want to delete this record?');"
value="Delete"/></form>),
grid.Column(header: "", format: item => item.GetSelectLink("Select"))
)
)
<strong>Page:</strong> @(grid.PageIndex + 1) / @grid.PageCount,
<strong>Records:</strong> @WebGridPageFirstItem(@grid) - @WebGridPageLastItem(@grid) of @grid.TotalRowCount
@*
@if (@grid.HasSelection)
{
@RenderPage("~/views/path/_partial_view.cshtml", new { Employee = grid.SelectedRow })
}
*@
</div>
@section script{
<script type="text/javascript">
$(function () {
$('#MyGrid tbody:first').append(
'<tr class="total-row"><td></td>\
<td></td><td></td><td></td>\
<td><strong>Total:</strong></td>\
<td>@string.Format("${0:n0}", @salaryPageSum)</td>\
<td>@string.Format("${0:n0}", @taxPageSum)</td>\
<td></td><td></td><td></td></tr>');
});
</script>
}
@{
var grid = new WebGrid(
source: Model,
canPage: true,
rowsPerPage: 10,
canSort: true,
defaultSort: "FirstName"
);
var salaryPageSum = 0;
var taxPageSum = 0;
var rowIndex = ((grid.PageIndex + 1) * grid.RowsPerPage) - (grid.RowsPerPage - 1);
}
tableStyle: "webgrid",
headerStyle: "webgrid-header",
footerStyle: "webgrid-footer",
alternatingRowStyle: "webgrid-alternating-row",
selectedRowStyle: "webgrid-selected-row",
rowStyle: "webgrid-row-style",
htmlAttributes: new { id = "MyGrid" },
<div id="container">
<table class="webgrid" id="MyGrid">
<thead>
<tr class="webgrid-header">
/* Styles for WebGrid
-----------------------------------------------------------*/
.webgrid
{
width: 100%;
margin: 0px;
padding: 0px;
border: 0px;
border-collapse: collapse;
font-family: Tahoma;
font-size: 9pt;
}
.webgrid a
{
color: #000;
}
.webgrid-header
{
padding: 0px 5px;
text-align: center;
border-bottom: 2px solid #739ace;
height: 20px;
border-top: 2px solid #D6E8FF;
border-left: 2px solid #D6E8FF;
border-right: 2px solid #D6E8FF;
}
.webgrid-header th
{
background-color: #eaf0ff;
border-right: 1px solid #ddd;
}
.webgrid-footer
{
padding: 6px 5px;
text-align: center;
background-color: #e8eef4;
border-top: 2px solid #3966A2;
height: 25px;
border-bottom: 2px solid #D6E8FF;
border-left: 2px solid #D6E8FF;
border-right: 2px solid #D6E8FF;
}
.webgrid-alternating-row
{
height: 22px;
background-color: #f2f2f2;
border-bottom: 1px solid #d2d2d2;
border-left: 2px solid #D6E8FF;
border-right: 2px solid #D6E8FF;
}
.webgrid-row-style
{
height: 22px;
border-bottom: 1px solid #d2d2d2;
border-left: 2px solid #D6E8FF;
border-right: 2px solid #D6E8FF;
}
.webgrid-selected-row
{
font-weight: bold;
}
.text-align-center-col
{
text-align: center;
}
.total-row
{
background-color:#f9eef4;
}
[Flags]
public enum WebGridPagerModes
{
Numeric = 1,
//
NextPrevious = 2,
//
FirstLast = 4,
//
All = 7,
}
grid.Column(columnName: "FirstName", header: "First Name",
format: @<span style='font-weight: bold'>@item.FirstName</span>,
style: "text-align-center-col"),
grid.Column(columnName: "LastName", header: "Last Name"),
Func<dynamic, object> format
format: @<span style='font-weight: bold'>@item.FirstName</span>
or
format: item =>
{
salaryPageSum += item.Salary;
return string.Format("${0:n0}", item.Salary);
}
grid.Column(header: "#",
style: "text-align-center-col",
format: @<text>@(rowIndex++)</text>),
grid.Column(header: "Image",
style: "text-align-center-col",
format: @<text><img alt="@item.Id" src="@Url.Content("~/images/" + @item.Id + ".jpg")" /></text>),
grid.Column(columnName: "AddDate", header: "Start",
style: "text-align-center-col",
format: item =>
{
int ym = item.AddDate.Year;
int mm = item.AddDate.Month;
int dm = item.AddDate.Day;
var persianCalendar = new PersianCalendar();
int ys = persianCalendar.GetYear(new DateTime(ym, mm, dm, new GregorianCalendar()));
int ms = persianCalendar.GetMonth(new DateTime(ym, mm, dm, new GregorianCalendar()));
int ds = persianCalendar.GetDayOfMonth(new DateTime(ym, mm, dm, new GregorianCalendar()));
return ys + "/" + ms.ToString("00") + "/" + ds.ToString("00");
}),
grid.Column(columnName: "Salary", header: "Salary",
format: item =>
{
salaryPageSum += item.Salary;
return string.Format("${0:n0}", item.Salary);
},
style: "text-align-center-col"),
grid.Column(header: "Tax", canSort: true,
format: item =>
{
var tax = item.Salary * 0.2;
taxPageSum += tax;
return string.Format("${0:n0}", tax);
}),
grid.Column(header: "Projects", columnName: "Projects",
style: "text-align-center-col",
format: item =>
{
var subGrid = new WebGrid(
source: item.Projects,
canPage: false,
canSort: false
);
return subGrid.GetHtml(
htmlAttributes: new { id = "MySubGrid" },
tableStyle: "webgrid",
headerStyle: "webgrid-header",
footerStyle: "webgrid-footer",
alternatingRowStyle: "webgrid-alternating-row",
selectedRowStyle: "webgrid-selected-row",
rowStyle: "webgrid-row-style"
);
}),
grid.Column(header: "",
style: "text-align-center-col",
format: item => @Html.ActionLink(linkText: "Edit", actionName: "Edit",
controllerName: "Home", routeValues: new { id = item.Id },
htmlAttributes: null)),
grid.Column(header: "",
format: @<form action="/Home/Delete/@item.Id" method="post"><input type="submit"
onclick="return confirm('Do you want to delete this record?');"
value="Delete"/></form>),
grid.Column(header: "", format: item => item.GetSelectLink("Select"))
@if (@grid.HasSelection)
{
@RenderPage("~/views/path/_partial_view.cshtml", new { Employee = grid.SelectedRow })
}
<strong>Page:</strong> @(grid.PageIndex + 1) / @grid.PageCount,
<strong>Records:</strong> @WebGridPageFirstItem(@grid) - @WebGridPageLastItem(@grid) of @grid.TotalRowCount
@section script{
<script type="text/javascript">
$(function () {
$('#MyGrid tbody:first').append(
'<tr class="total-row"><td></td>\
<td></td><td></td><td></td>\
<td><strong>Total:</strong></td>\
<td>@string.Format("${0:n0}", @salaryPageSum)</td>\
<td>@string.Format("${0:n0}", @taxPageSum)</td>\
<td></td><td></td><td></td></tr>');
});
</script>
}
<head>
<title>@ViewBag.Title</title>
<link href="@Url.Content("~/Content/Site.css")" rel="stylesheet" type="text/css" />
<script src="@Url.Content("~/Scripts/jquery-1.5.1.min.js")" type="text/javascript"></script>
@RenderSection("script", required: false)
</head>
در ادامه بررسی تصویر امنیتی سایت مواردی که باید پیاده سازی شود برای مورد اول میتوان کلاس زیر را در نظر گرفت که متدهایی برای تولید اعداد بصورت تصادفی در بین بازه معرفی شده را بازگشت میدهد:
// RandomGenerator.cs
using System;
using System.Security.Cryptography;
namespace PersianCaptchaHandler
{
public class RandomGenerator
{
private static readonly byte[] Randb = new byte[4];
private static readonly RNGCryptoServiceProvider Rand = new RNGCryptoServiceProvider();
public static int Next()
{
Rand.GetBytes(Randb);
var value = BitConverter.ToInt32(Randb, 0);
if (value < 0) value = -value;
return value;
}
public static int Next(int max)
{
Rand.GetBytes(Randb);
var value = BitConverter.ToInt32(Randb, 0);
value = value%(max + 1);
if (value < 0) value = -value;
return value;
}
public static int Next(int min, int max)
{
var value = Next(max - min) + min;
return value;
}
}
}
// NumberToString.cs
namespace PersianCaptchaHandler
{
public class NumberToString
{
#region Fields
private static readonly string[] Yakan = new[] { "صفر", "یک", "دو", "سه", "چهار", "پنج", "شش", "هفت", "هشت", "نه" };
private static readonly string[] Dahgan = new[] { "", "", "بیست", "سی", "چهل", "پنجاه", "شصت", "هفتاد", "هشتاد", "نود" };
private static readonly string[] Dahyek = new [] { "ده", "یازده", "دوازده", "سیزده", "چهارده", "پانزده", "شانزده", "هفده", "هجده", "نوزده" };
private static readonly string[] Sadgan = new [] { "", "یکصد", "دوصد", "سیصد", "چهارصد", "پانصد", "ششصد", "هفتصد", "هشتصد", "نهصد" };
private static readonly string[] Basex = new [] { "", "هزار", "میلیون", "میلیارد", "تریلیون" };
#endregion
private static string Getnum3(int num3)
{
var s = "";
var d12 = num3 % 100;
var d3 = num3 / 100;
if (d3 != 0)
s = Sadgan[d3] + " و ";
if ((d12 >= 10) && (d12 <= 19))
{
s = s + Dahyek[d12 - 10];
}
else
{
var d2 = d12 / 10;
if (d2 != 0)
s = s + Dahgan[d2] + " و ";
var d1 = d12 % 10;
if (d1 != 0)
s = s + Yakan[d1] + " و ";
s = s.Substring(0, s.Length - 3);
}
return s;
}
public static string ConvertIntNumberToFarsiAlphabatic(string snum)
{
var stotal = "";
if (snum == "0") return Yakan[0];
snum = snum.PadLeft(((snum.Length - 1) / 3 + 1) * 3, '0');
var l = snum.Length / 3 - 1;
for (var i = 0; i <= l; i++)
{
var b = int.Parse(snum.Substring(i * 3, 3));
if (b != 0)
stotal = stotal + Getnum3(b) + " " + Basex[l - i] + " و ";
}
stotal = stotal.Substring(0, stotal.Length - 3);
return stotal;
}
}
}
using System;
using System.IO;
using System.Security.Cryptography;
using System.Text;
namespace PersianCaptchaHandler
{
public class Encryptor
{
#region constraints
private static string Password { get { return "Mehdi"; } }
private static string Salt { get { return "Payervand"; } }
#endregion
public static string Encrypt(string clearText)
{
// Turn text to bytes
var clearBytes = Encoding.Unicode.GetBytes(clearText);
var pdb = new PasswordDeriveBytes(Password, Encoding.Unicode.GetBytes(Salt));
var ms = new MemoryStream();
var alg = Rijndael.Create();
alg.Key = pdb.GetBytes(32);
alg.IV = pdb.GetBytes(16);
var cs = new CryptoStream(ms, alg.CreateEncryptor(), CryptoStreamMode.Write);
cs.Write(clearBytes, 0, clearBytes.Length);
cs.Close();
var encryptedData = ms.ToArray();
return Convert.ToBase64String(encryptedData);
}
public static string Decrypt(string cipherText)
{
// Convert text to byte
var cipherBytes = Convert.FromBase64String(cipherText);
var pdb = new PasswordDeriveBytes(Password, Encoding.Unicode.GetBytes(Salt));
var ms = new MemoryStream();
var alg = Rijndael.Create();
alg.Key = pdb.GetBytes(32);
alg.IV = pdb.GetBytes(16);
var cs = new CryptoStream(ms, alg.CreateDecryptor(), CryptoStreamMode.Write);
cs.Write(cipherBytes, 0, cipherBytes.Length);
cs.Close();
var decryptedData = ms.ToArray();
return Encoding.Unicode.GetString(decryptedData);
}
}
}
// Utils.cs
using System.Text.RegularExpressions;
namespace PersianCaptchaHandler
{
public class Utils
{
private static readonly Regex NumberMatch = new Regex(@"^([0-9]*|\d*\.\d{1}?\d*)$", RegexOptions.Compiled);
public static bool IsNumber(string number2Match)
{
return NumberMatch.IsMatch(number2Match);
}
}
}
<add verb="GET" path="/captcha/" type="PersianCaptchaHandler.CaptchaHandler, PersianCaptchaHandler, Version=1.0.0.0, Culture=neutral" />
<!-- ASPX -->
<dl>
<dt>تصویر امنیتی</dt>
<dd>
<asp:Image ID="imgCaptchaText" runat="server" AlternateText="CaptchaImage" />
<asp:HiddenField ID="hfCaptchaText" runat="server" />
<asp:ImageButton ID="btnRefreshCaptcha" runat="server" ImageUrl="/img/refresh.png"
OnClick="btnRefreshCaptcha_Click" />
<br />
<asp:TextBox ID="txtCaptcha" runat="server" AutoCompleteType="Disabled"></asp:TextBox>
</dd>
<dd>
<asp:Button ID="btnSubmit" runat="server" Text="ثبت" OnClick="btnSubmit_Click" />
</dd>
</dl>
<asp:Label ID="lblMessage" runat="server"></asp:Label>
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
SetCaptcha();
}
private void SetCaptcha()
{
lblMessage.Text =
txtCaptcha.Text = string.Empty;
var newNumber =
RandomGenerator.Next(100, 999)
;
var farsiAlphabatic = NumberToString.ConvertIntNumberToFarsiAlphabatic(newNumber.ToString());
hfCaptchaText.Value =
HttpUtility
.UrlEncode(
Encryptor.Encrypt(
farsiAlphabatic
)
);
txtCaptcha.Text = string.Empty;
imgCaptchaText.ImageUrl =
"/captcha/?text=" + hfCaptchaText.Value;
}
private string GetCaptcha()
{
var farsiAlphabatic = NumberToString.ConvertIntNumberToFarsiAlphabatic(txtCaptcha.Text);
var encryptedString =
HttpUtility
.UrlEncode(
Encryptor.Encrypt(
farsiAlphabatic
)
);
return encryptedString;
}
private bool ValidateUserInputForLogin()
{
if (!Utils.IsNumber(txtCaptcha.Text))
{
lblMessage.Text = "تصویر امنیتی را بطور صحیح وارد نکرده اید";
return false;
}
var strGetCaptcha =
GetCaptcha();
var strDecodedVAlue =
hfCaptchaText.Value;
if (strDecodedVAlue != strGetCaptcha)
{
lblMessage.Text = "کلمه امنیتی اشتباه است";
SetCaptcha();
return false;
}
return true;
}
protected void btnSubmit_Click(object sender, EventArgs e)
{
if (!ValidateUserInputForLogin()) return;
lblMessage.Text = "کلمه امنیتی درست است";
}
protected void btnRefreshCaptcha_Click(object sender, ImageClickEventArgs e)
{
SetCaptcha();
}
using System;
using System.Threading.Tasks;
namespace Listing_01 {
class Listing_01 {
static void Main(string[] args) {
Task.Factory.StartNew(() => {
Console.WriteLine("Hello World");
});
// wait for input before exiting
Console.WriteLine("Main method complete. Press enter to finish.");
Console.ReadLine();
}
}
using System.Threading.Tasks;
using System.Threading;
Task.Factory.StartNew(() => {
Console.WriteLine("Hello World");
});
Main method complete. Press enter to finish. Hello World
Task task1 = new Task(new Action(printMessage));
Task task2 = new Task(delegate {
printMessage();
});
Task task3 = new Task(() => printMessage());
Task task4 = new Task(() => {
printMessage();
});
using System;
using System.Threading.Tasks;
namespace Listing_02 {
class Listing_02 {
static void Main(string[] args) {
// use an Action delegate and a named method
Task task1 = new Task(new Action(printMessage));
// use a anonymous delegate
Task task2 = new Task(delegate {
printMessage();
});
// use a lambda expression and a named method
Task task3 = new Task(() => printMessage());
// use a lambda expression and an anonymous method
Task task4 = new Task(() => {
printMessage();
});
task1.Start();
task2.Start();
task3.Start();
task4.Start();
// wait for input before exiting
Console.WriteLine("Main method complete. Press enter to finish.");
Console.ReadLine();
}
static void printMessage() {
Console.WriteLine("Hello World");
}
}
}
Main method complete. Press enter to finish. Hello World Hello World Hello World Hello World
using System.Collections.Generic;
namespace Refactoring.Day2.ExtractMethod.Before
{
public class Receipt
{
private IList<decimal> Discounts { get; set; }
private IList<decimal> ItemTotals { get; set; }
public decimal CalculateGrandTotal()
{
// Calculate SubTotal
decimal subTotal = 0m;
foreach (decimal itemTotal in ItemTotals)
subTotal += itemTotal;
// Calculate Discounts
if (Discounts.Count > 0)
{
foreach (decimal discount in Discounts)
subTotal -= discount;
}
// Calculate Tax
decimal tax = subTotal * 0.065m;
subTotal += tax;
return subTotal;
}
}
}
using System.Collections.Generic;
namespace Refactoring.Day2.ExtractMethod.After
{
public class Receipt
{
private IList<decimal> Discounts { get; set; }
private IList<decimal> ItemTotals { get; set; }
public decimal CalculateGrandTotal()
{
decimal subTotal = CalculateSubTotal();
subTotal = CalculateDiscounts(subTotal);
subTotal = CalculateTax(subTotal);
return subTotal;
}
private decimal CalculateTax(decimal subTotal)
{
decimal tax = subTotal * 0.065m;
subTotal += tax;
return subTotal;
}
private decimal CalculateDiscounts(decimal subTotal)
{
if (Discounts.Count > 0)
{
foreach (decimal discount in Discounts)
subTotal -= discount;
}
return subTotal;
}
private decimal CalculateSubTotal()
{
decimal subTotal = 0m;
foreach (decimal itemTotal in ItemTotals)
subTotal += itemTotal;
return subTotal;
}
}
}
using (var sha256 = new SHA256Managed())
{
// Crypto code here...
} public static string GetHash(string text)
{
using (var sha256 = SHA256.Create())
{
var hashedBytes = sha256.ComputeHash(Encoding.UTF8.GetBytes(text));
return BitConverter.ToString(hashedBytes).Replace("-", "").ToLower();
}
} "dependencies": {
"System.Security.Cryptography.Algorithms": "4.2.0"
}, using (var md5 = IncrementalHash.CreateHash(HashAlgorithmName.MD5))
{
md5.AppendData(byteArray1, 0, byteArray1.Length);
md5.AppendData(byteArray2, 0, byteArray2.Length);
var hash = md5.GetHashAndReset();
} private static readonly RNGCryptoServiceProvider Rand = new RNGCryptoServiceProvider();
var rand = new RNGCryptoServiceProvider();
public interface IRandomNumberProvider
{
int Next();
int Next(int max);
int Next(int min, int max);
}
public class RandomNumberProvider : IRandomNumberProvider
{
private readonly RandomNumberGenerator _rand = RandomNumberGenerator.Create();
public int Next()
{
var randb = new byte[4];
_rand.GetBytes(randb);
var value = BitConverter.ToInt32(randb, 0);
if (value < 0) value = -value;
return value;
}
public int Next(int max)
{
var randb = new byte[4];
_rand.GetBytes(randb);
var value = BitConverter.ToInt32(randb, 0);
value = value % (max + 1); // % calculates remainder
if (value < 0) value = -value;
return value;
}
public int Next(int min, int max)
{
var value = Next(max - min) + min;
return value;
}
} public class Startup
{
public void ConfigureServices(IServiceCollection services)
{
services.TryAddSingleton<IRandomNumberProvider, RandomNumberProvider>(); public interface IProtectionProvider
{
string Decrypt(string inputText);
string Encrypt(string inputText);
}
namespace Providers
{
public class ProtectionProvider : IProtectionProvider
{
private readonly IDataProtector _dataProtector;
public ProtectionProvider(IDataProtectionProvider dataProtectionProvider)
{
_dataProtector = dataProtectionProvider.CreateProtector(typeof(ProtectionProvider).FullName);
}
public string Decrypt(string inputText)
{
var inputBytes = Convert.FromBase64String(inputText);
var bytes = _dataProtector.Unprotect(inputBytes);
return Encoding.UTF8.GetString(bytes);
}
public string Encrypt(string inputText)
{
var inputBytes = Encoding.UTF8.GetBytes(inputText);
var bytes = _dataProtector.Protect(inputBytes);
return Convert.ToBase64String(bytes);
}
}
} public class Startup
{
public void ConfigureServices(IServiceCollection services)
{
services.TryAddSingleton<IProtectionProvider, ProtectionProvider>(); public string Decrypt(string inputText, string key, string salt)
{
var inputBytes = Convert.FromBase64String(inputText);
var pdb = new Rfc2898DeriveBytes(key, Encoding.UTF8.GetBytes(salt));
using (var ms = new MemoryStream())
{
var alg = Aes.Create();
alg.Key = pdb.GetBytes(32);
alg.IV = pdb.GetBytes(16);
using (var cs = new CryptoStream(ms, alg.CreateDecryptor(), CryptoStreamMode.Write))
{
cs.Write(inputBytes, 0, inputBytes.Length);
}
return Encoding.UTF8.GetString(ms.ToArray());
}
}
public string Encrypt(string inputText, string key, string salt)
{
var inputBytes = Encoding.UTF8.GetBytes(inputText);
var pdb = new Rfc2898DeriveBytes(key, Encoding.UTF8.GetBytes(salt));
using (var ms = new MemoryStream())
{
var alg = Aes.Create();
alg.Key = pdb.GetBytes(32);
alg.IV = pdb.GetBytes(16);
using (var cs = new CryptoStream(ms, alg.CreateEncryptor(), CryptoStreamMode.Write))
{
cs.Write(inputBytes, 0, inputBytes.Length);
}
return Convert.ToBase64String(ms.ToArray());
}
} dotnet publish -r win10-x64 /p:PublishSingleFile=true
| With ReadyToRun images | IL-only Application |
| Startup time: 1.3 seconds | Startup time: 1.9 seconds |
| Memory usage: 55.7 MB | Memory usage: 69.1 MB |
| Application size: 156 MB | Application size: 150 MB |
<PublishReadyToRun>true</PublishReadyToRun>
dotnet publish -r win-x64 -c Release
<PublishTrimmed>true</PublishTrimmed>
dotnet publish -r win-x64 -c Release
[ImplementPropertyChanged] // AOP public class LoginPageModel : DataErrorInfoBase
public class User : BaseEntity
[ImplementPropertyChanged] // AOP public abstract class BaseEntity : DataErrorInfoBase //پیاده سازی خودکار سیستم اعتبارسنجی یکپارچه
/// <summary> /// تغییر مقدار یک خاصیت را اطلاع رسانی خواهد کرد /// </summary> /// <param name="propertyName">نام خاصیت</param> public void NotifyPropertyChanged(string propertyName) /// <summary> /// تغییر مقدار یک خاصیت را اطلاع رسانی خواهد کرد /// </summary> /// <param name="expression">نام خاصیت مورد نظر</param> public void NotifyPropertyChanged(Expression<Func<object>> expression)
public class AlertConfirmBoxViewModel : BaseViewModel
{
AlertConfirmBoxModel _alertConfirmBoxModel;
public AlertConfirmBoxModel AlertConfirmBoxModel
{
set
{
_alertConfirmBoxModel = value;
NotifyPropertyChanged("AlertConfirmBoxModel");
// ویا ....
NotifyPropertyChanged(()=>AlertConfirmBoxModel);
}
get { return _alertConfirmBoxModel; }
} <TextBox Text="{Binding Path=ChangeProfileData.UserName, Mode=TwoWay,UpdateSourceTrigger=PropertyChanged,
NotifyOnValidationError=true, ValidatesOnExceptions=true, ValidatesOnDataErrors=True, TargetNullValue=''}" />
به علاوه باید دقت داشت که این مورد ویژه را باید بر اساس آخرین Build کتابخانه MahApps.Metro که به‌روزتر است دریافت و استفاده کرد. در اینجا با پارامتر Pre ذکر شده است.
PM> Install-Package MahApps.Metro -Pre