.net – Page 20

Install .NET on Manjaro

September 11, 2019

.NET Core
If you only want to run .NET Core managed applications, install the dotnet-runtime package.
To build apps with .NET Core, install dotnet-sdk as well.
Microsoft recommends using Visual Studio Code , their Electron-based FOSS IDE, to build & debug .NET Core apps.

Tip: Add ~/.dotnet/tools to PATH, otherwise dotnet tools with not work from shell.

Mono

Install the mono package.

References
https://wiki.archlinux.org/index.php/.NET_Core
https://wiki.archlinux.org/index.php/Mono

Download image from url in C#

July 30, 2018

Simply You can use following methods.

using (WebClient client = new WebClient()) 
  {
    client.DownloadFile(new Uri(url), @"c:\temp\image35.png");

     //OR 

    client.DownloadFileAsync(new Uri(url), @"c:\temp\image35.png");
   }

If You don’t know the Format(.png, .jpeg etc) of Image

public void SaveImage(string filename, ImageFormat format) {

    WebClient client = new WebClient();
    Stream stream = client.OpenRead(imageUrl);
    Bitmap bitmap;  bitmap = new Bitmap(stream);

    if (bitmap != null) 
      bitmap.Save(filename, format);

    stream.Flush();
    stream.Close();
    client.Dispose();
}

References
https://stackoverflow.com/questions/24797485/how-to-download-image-from-url

Creating a temporary directory in Windows using C#

July 30, 2018

public string GetTemporaryDirectory()
{
   string tempDirectory = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
   Directory.CreateDirectory(tempDirectory);
   return tempDirectory;
}

References
https://stackoverflow.com/questions/278439/creating-a-temporary-directory-in-windows

Install .NET Core on Ubuntu 16.04

September 21, 2017

curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.gpg
sudo mv microsoft.gpg /etc/apt/trusted.gpg.d/microsoft.gpg
sudo sh -c 'echo "deb [arch=amd64] https://packages.microsoft.com/repos/microsoft-ubuntu-xenial-prod xenial main" > /etc/apt/sources.list.d/dotnetdev.list'

sudo apt-get update
sudo apt-get install dotnet-sdk-2.0.0

References
https://github.com/dotnet/core/blob/master/release-notes/download-archives/2.0.0-download.md

String Format with thousands separator

August 2, 2016

String.Format("{0:0,0}", 12345.67);       // "12,346"

References :
http://www.csharp-examples.net/string-format-double/

Keywords :

C# , string.format , string , format

How to add JavaScript library in MVC project

July 29, 2016

JavaScript :

BundleConfig.RegisterBundles(BundleTable.Bundles);

bundles.Add(new ScriptBundle("~/bundles/jqueryui").Include(
            "~/Scripts/jquery-ui-{version}.js"));

@Scripts.Render("~/bundles/jqueryui")

CSS :

bundles.Add(new StyleBundle("~/Content/themes/base/css").Include(
              "~/Content/themes/base/jquery.ui.core.css",
              "~/Content/themes/base/jquery.ui.resizable.css",
              "~/Content/themes/base/jquery.ui.selectable.css",
              "~/Content/themes/base/jquery.ui.accordion.css",
              "~/Content/themes/base/jquery.ui.autocomplete.css",
              "~/Content/themes/base/jquery.ui.button.css",
              "~/Content/themes/base/jquery.ui.dialog.css",
              "~/Content/themes/base/jquery.ui.slider.css",
              "~/Content/themes/base/jquery.ui.tabs.css",
              "~/Content/themes/base/jquery.ui.datepicker.css",
              "~/Content/themes/base/jquery.ui.progressbar.css",
              "~/Content/themes/base/jquery.ui.theme.css"));

@Styles.Render("~/Content/themes/base/css")

References :
http://stackoverflow.com/questions/20081328/how-to-add-jqueryui-library-in-mvc-5-project

Keywords :

References , Script , Bundle

Create a function in a cshtml View in ASP.NET MVC

July 29, 2016

@functions{
    public string GetSomeString(){
        return string.Empty;
    }
}

<h2>index</h2>
@GetSomeString()

References :
http://stackoverflow.com/questions/6531983/how-to-create-a-function-in-a-cshtml-template

Keywords :

Method , ASP , MVC , View

Get CPU and Memory usage of system in C#

July 27, 2016

PerformanceCounter cpuCounter=new PerformanceCounter("Processor", "% Processor Time", "_Total");
PerformanceCounter ramCounter= new PerformanceCounter("Memory", "Available MBytes");

// The method nextValue() always returns a 0 value on the first call. So you have to call this method a second time
cpuCounter.NextValue();
Thread.Sleep(1000);
var cpuUsage = cpuCounter.NextValue();
string cpuUsageStr = string.Format("{0:f2} %",cpuUsage);

var ramAvailable = ramCounter.NextValue();
string ramAvaiableStr = string.Format("{0} MB", ramAvailable);

References :
http://stackoverflow.com/questions/4679962/what-is-the-correct-performance-counter-to-get-cpu-and-memory-usage-of-a-process
http://stackoverflow.com/questions/2181828/why-the-cpu-performance-counter-kept-reporting-0-cpu-usage

Cleaner HTML Markup in ASP.NET Web Forms with ClientIDMode

July 26, 2016

<asp:TextBox ID="txtName" ClientIDMode="static" runat="server"></asp.TextBox>

References :
http://weblogs.asp.net/scottgu/cleaner-html-markup-with-asp-net-4-web-forms-client-ids-vs-2010-and-net-4-0-series
http://stackoverflow.com/questions/3304478/how-to-set-specific-id-for-server-controls-in-an-asp-net-web-form-that-is-using

Problem in installing Dot Net Core 1.0.0 VS 2015 Tools Preview 2

July 22, 2016

Each time I try to install the DotNetCore.1.0.0-VS2015Tools.Preview2.exe package I get an error saying the following:

Setup Failed One or more issues caused the setup to fail. Please fix the issues and then retry setup. For more information see the log file. Setup has detected that Visual Studio 2015 Update 3 may not be completely installed. Please repair Visual Studio 2015 Update 3, then install this product again.

After changing the VS Community UpdateVersion string value from 14.0.25424 to 14.0.25420 in the registry, the installer worked fine for me

HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\DevDiv\vs\Servicing\14.0\community
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\DevDiv\vs\Servicing\14.0\community\1033
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\DevDiv\vs\Servicing\14.0\ente‌rprise
HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\DevDiv\vs\Servicing\14.0\ente‌rprise\1033

References :
http://stackoverflow.com/questions/38134048/problems-installing-dot-net-core-1-0-0-vs-2015-tools-preview-2