It is WPF problem, DataConversion in C#

DataConversion
..............\DataBinding
..............\...........\App.xaml
..............\...........\App.xaml.cs
..............\...........\Bin
..............\...........\...\Debug
..............\...........\...\.....\AppManifest.xaml
..............\...........\...\.....\DataBinding.dll
..............\...........\...\.....\DataBinding.pdb
..............\...........\...\.....\DataBinding.xap
..............\...........\...\.....\de
..............\...........\...\.....\..\System.Windows.Controls.resources.dll
..............\...........\...\.....\es
..............\...........\...\.....\..\System.Windows.Controls.resources.dll
..............\...........\...\.....\fr
..............\...........\...\.....\..\System.Windows.Controls.resources.dll
..............\...........\...\.....\it
..............\...........\...\.....\..\System.Windows.Controls.resources.dll
..............\...........\...\.....\ja
..............\...........\...\.....\..\System.Windows.Controls.resources.dll
..............\...........\...\.....\ko
..............\...........\...\.....\..\System.Windows.Controls.resources.dll
..............\...........\...\.....\System.Windows.Controls.dll
..............\...........\...\.....\System.Windows.Controls.xml
..............\...........\...\.....\TestPage.html
..............\...........\...\.....\zh-Hans
..............\...........\...\.....\.......\System.Windows.Controls.resources.dll
..............\...........\...\.....\zh-Hant
..............\...........\...\.....\.......\System.Windows.Controls.resources.dll
..............\...........\Book.cs
..............\...........\DataBinding.csproj
..............\...........\DataBinding.csproj.user
..............\...........\DateToMonthYear.cs
..............\...........\MonthAndYear.cs
..............\...........\obj
..............\...........\...\Debug
..............\...........\...\.....\App.g.cs
..............\...........\...\.....\DataBinding.csproj.FileListAbsolute.txt
..............\...........\...\.....\DataBinding.dll
..............\...........\...\.....\DataBinding.g.resources
..............\...........\...\.....\DataBinding.pdb
..............\...........\...\.....\Page.g.cs
..............\...........\...\.....\Refactor
..............\...........\...\.....\ResolveAssemblyReference.cache
..............\...........\...\.....\TempPE
..............\...........\...\.....\XapCacheFile.xml
..............\...........\Page.xaml
..............\...........\Page.xaml.cs
..............\...........\Properties
..............\...........\..........\AppManifest.xml
..............\...........\..........\AssemblyInfo.cs
..............\DataBinding.sln

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