CSharp use HTTPCLIENT to interact with the IIS server, upload and download pictures, a complete example.

ClsHttpClient
.............\bin
.............\...\Debug
.............\...\.....\ClsHttpClient.dll
.............\...\.....\ClsHttpClient.pdb
.............\...\.....\Common.dll
.............\...\.....\Common.pdb
.............\ClsHttpClient.cs
.............\ClsHttpClient.csproj
.............\obj
.............\...\Debug
.............\...\.....\ClsHttpClient.csproj.FileListAbsolute.txt
.............\...\.....\ClsHttpClient.dll
.............\...\.....\ClsHttpClient.pdb
.............\...\.....\DesignTimeResolveAssemblyReferencesInput.cache
.............\...\.....\Refactor
.............\...\.....\ResolveAssemblyReference.cache
.............\...\.....\TempPE
.............\Properties
.............\..........\AssemblyInfo.cs
ClsHttpServerPool
.................\bin
.................\...\Debug
.................\...\.....\ClsHttpServerPool.dll
.................\...\.....\ClsHttpServerPool.pdb
.................\...\.....\Common.dll
.................\...\.....\Common.pdb
.................\ClsHttpServerPool.cs
.................\ClsHttpServerPool.csproj
.................\obj
.................\...\Debug
.................\...\.....\ClsHttpServerPool.csproj.FileListAbsolute.txt
.................\...\.....\ClsHttpServerPool.dll
.................\...\.....\ClsHttpServerPool.pdb
.................\...\.....\DesignTimeResolveAssemblyReferencesInput.cache
.................\...\.....\Refactor
.................\...\.....\TempPE
.................\Properties
.................\..........\AssemblyInfo.cs
Common
......\bin
......\...\Debug
......\...\.....\Common.dll
......\...\.....\Common.pdb
......\Common.cs
......\Common.csproj
......\obj
......\...\Debug
......\...\.....\Common.csproj.FileListAbsolute.txt
......\...\.....\Common.dll
......\...\.....\Common.pdb
......\...\.....\DesignTimeResolveAssemblyReferencesInput.cache
......\...\.....\Refactor
......\...\.....\TempPE
......\Properties
......\..........\AssemblyInfo.cs
HttpClient
..........\bin
..........\...\Debug
..........\...\.....\ClsHttpClient.dll
..........\...\.....\ClsHttpClient.pdb
..........\...\.....\Common.dll
..........\...\.....\Common.pdb
..........\...\.....\gg.jpg
..........\...\.....\gogosai.dll
..........\...\.....\gogosai.pdb
..........\...\.....\HttpClient.exe
..........\...\.....\HttpClient.pdb
..........\...\.....\HttpClient.vshost.exe
..........\...\.....\HttpClient.vshost.exe.manifest
..........\FormClient.cs
..........\FormClient.Designer.cs
..........\FormClient.resx
..........\HttpClient.csproj
..........\obj
..........\...\Debug
..........\...\.....\DesignTimeResolveAssemblyReferencesInput.cache
..........\...\.....\HttpClient.csproj.FileListAbsolute.txt
..........\...\.....\HttpClient.csproj.GenerateResource.Cache
..........\...\.....\HttpClient.csprojResolveAssemblyReference.cache
..........\...\.....\HttpClient.exe
..........\...\.....\HttpClient.FormClient.resources
..........\...\.....\HttpClient.pdb
..........\...\.....\HttpClient.Properties.Resources.resources
..........\...\.....\Refactor
..........\...\.....\ResolveAssemblyReference.cache
..........\...\.....\TempPE
..........\...\.....\......\Properties.Resources.Designer.cs.dll
..........\Program.cs
..........\Properties
..........\..........\AssemblyInfo.cs
..........\..........\Resources.Designer.cs
..........\..........\Resources.resx
..........\..........\Settings.Designer.cs
..........\..........\Settings.settings
HttpServerPool
HttpServerPool.sln
..............\bin
..............\...\Debug
..............\...\.....\7758258.jpg

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