How we can write on C# in Linux: Implementing PanelApplet to Gnome Desktop

<?xml version="1.0" encoding="utf-8"?>
<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="3.5">
  <PropertyGroup>
    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
    <Platform Condition=" '$(Platform)' == '' ">x86</Platform>
    <ProductVersion>9.0.21022</ProductVersion>
    <SchemaVersion>2.0</SchemaVersion>
    <ProjectGuid>{3CEA0509-451D-4675-95F3-C360F0AFFAFE}</ProjectGuid>
    <OutputType>Exe</OutputType>
    <RootNamespace>appletSource1</RootNamespace>
    <AssemblyName>appletSource1</AssemblyName>
    <TargetFrameworkVersion>v3.5</TargetFrameworkVersion>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|x86' ">
    <DebugSymbols>true</DebugSymbols>
    <DebugType>full</DebugType>
    <Optimize>false</Optimize>
    <OutputPath>bin\Debug</OutputPath>
    <DefineConstants>DEBUG</DefineConstants>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
    <PlatformTarget>x86</PlatformTarget>
  </PropertyGroup>
  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
    <DebugType>none</DebugType>
    <Optimize>false</Optimize>
    <OutputPath>bin\Release</OutputPath>
    <ErrorReport>prompt</ErrorReport>
    <WarningLevel>4</WarningLevel>
    <PlatformTarget>x86</PlatformTarget>
  </PropertyGroup>
  <ItemGroup>
    <Reference Include="System">
    </Reference>
    <Reference Include="gnome-panel-sharp, Version=2.24.0.0, Culture=neutral, PublicKeyToken=35e10195dab3c99f">
      <Package>gnome-panel-sharp-2.24</Package>
    </Reference>
    <Reference Include="gtk-sharp, Version=2.12.0.0, Culture=neutral, PublicKeyToken=35e10195dab3c99f" />
    <Reference Include="System.Windows.Forms" />
    <Reference Include="gnome-sharp, Version=2.12.0.0, Culture=neutral, PublicKeyToken=35e10195dab3c99f">
      <Package>gnome-sharp-2.0</Package>
    </Reference>
    <Reference Include="gconf-sharp, Version=2.12.0.0, Culture=neutral, PublicKeyToken=35e10195dab3c99f">
      <Package>gconf-sharp-2.0</Package>
    </Reference>
    <Reference Include="System.Xml.Linq" />
    <Reference Include="System.Xml" />
    <Reference Include="System.Web.Services" />
    <Reference Include="System.Data.Linq" />
    <Reference Include="System.Core" />
  </ItemGroup>
  <ItemGroup>
    <Compile Include="AssemblyInfo.cs" />
    <Compile Include="Data\CurrentWeather.cs" />
    <Compile Include="Data\GlobalWeather.cs" />
    <Compile Include="View\TreeView.cs" />
    <Compile Include="View\MyWindow.cs" />
    <Compile Include="Program.cs" />
    <Compile Include="View\PanelAppletClass.cs" />
    <Compile Include="Model\WeatherService.cs" />
    <Compile Include="Model\SettingsStore.cs" />
  </ItemGroup>
  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
  <ItemGroup>
    <None Include="appletSource1_Factory.server" />
    <None Include="Data\weather.wsdl" />
  </ItemGroup>
  <ItemGroup>
    <Folder Include="Data\" />
    <Folder Include="View\" />
    <Folder Include="Model\" />
  </ItemGroup>
</Project>