Get all IP Addresses from devices attached to the machine C#

C# > System.Net > Dns > IPHostEntry > AddressList

AddressList gets or sets a list of IP addresses that are associated with a host.

Example

Get all IP Addresses from devices attached to the machine 

string hostName = Dns.GetHostName();

IPHostEntry ipHostEntry = Dns.GetHostEntry(hostName);

foreach (IPAddress item in ipHostEntry.AddressList)

{

var IPAddress = item.ToString();

…

}

C# Unit test to check if the class implements an interface with IsInstanceOfType method

C# > Assert Class > IsInstanceOfType

This method verifies that the specified object is an instance of the specified type. 

Example

Test class implements a specific interface.

var result = typeof(MyClass).GetInterfaces()[0];

// Assert

Assert.IsInstanceOfType(typeof(IMyClass), result.GetType());

What is ADO.NET

ADO.NET provides a set of components for creating distributed, data-sharing applications.

ADO.NET provides consistent access to data sources such as SQL Server and XML, and to data sources exposed through OLE DB and ODBC. Data-sharing consumer applications can use ADO.NET to connect to these data sources and retrieve, handle, and update the data that they contain.

Clear filters RadGrid Telerik

Telerik > RadGrid > Clear filter

foreach (var column in RadGrid1.MasterTableView.Columns)
{
         column.CurrentFilterFunction = GridKnownFunction.NoFilter;
         column.CurrentFilterValue = string.Empty;
}

RadGrid1.MasterTableView.FilterExpression = string.Empty;
RadGrid1.MasterTableView.Rebind();

Print directly RadGridView

Telerik > Windows Forms > RadGridView > Print directly 

radGridView1.Print();

Clear contents of a file c#

C# > Clear contents of a file

WriteAllText creates a new file, write the contents to the file, and then closes the file. If the target file already exists, it is overwritten.

Example

 System.IO.File.WriteAllText(filename, string.Empty);

Remove unused usings Visual Studio

Visual Studio > Remove Unused Usings

Right mouse click > Organize Usings