Find out, Which Object Sent event?

Find Event Sender\WindowsFormsApplication1\App.config
.................\........................\bin\Debug\WindowsFormsApplication1.exe
.................\........................\...\.....\WindowsFormsApplication1.exe.config
.................\........................\...\.....\WindowsFormsApplication1.pdb
.................\........................\...\.....\WindowsFormsApplication1.vshost.exe
.................\........................\...\.....\WindowsFormsApplication1.vshost.exe.config
.................\........................\...\.....\WindowsFormsApplication1.vshost.exe.manifest
.................\........................\...\Debug
.................\........................\bin
.................\........................\Form1.cs
.................\........................\Form1.Designer.cs
.................\........................\Form1.resx
.................\........................\obj\Debug\DesignTimeResolveAssemblyReferences.cache
.................\........................\...\.....\DesignTimeResolveAssemblyReferencesInput.cache
.................\........................\...\.....\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs
.................\........................\...\.....\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs
.................\........................\...\.....\TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs
.................\........................\...\.....\TempPE
.................\........................\...\.....\WindowsFormsApplication1.csproj.FileListAbsolute.txt
.................\........................\...\.....\WindowsFormsApplication1.csproj.GenerateResource.Cache
.................\........................\...\.....\WindowsFormsApplication1.csprojResolveAssemblyReference.cache
.................\........................\...\.....\WindowsFormsApplication1.exe
.................\........................\...\.....\WindowsFormsApplication1.Form1.resources
.................\........................\...\.....\WindowsFormsApplication1.pdb
.................\........................\...\.....\WindowsFormsApplication1.Properties.Resources.resources
.................\........................\...\Debug
.................\........................\obj
.................\........................\Program.cs
.................\........................\...perties\AssemblyInfo.cs
.................\........................\..........\Resources.Designer.cs
.................\........................\..........\Resources.resx
.................\........................\..........\Settings.Designer.cs
.................\........................\..........\Settings.settings
.................\........................\Properties
.................\........................\WindowsFormsApplication1.csproj
.................\WindowsFormsApplication1
.................\WindowsFormsApplication1.sln
.................\WindowsFormsApplication1.v11.suo
Find Event Sender

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