Standard CustomValidator Textbox

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    <Import Include="Microsoft.VisualBasic" />
    <Import Include="System" />
    <Import Include="System.Collections" />
    <Import Include="System.Collections.Generic" />
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    <Component Include="bin\CustomTextBox.dll" />
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    <ProjectReference Include="..\CustomTextBox\CustomTextBox.vbproj">
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  <Import Project="$(MSBuildBinPath)\Microsoft.VisualBasic.targets" />
  <Import Project="$(MSBuildExtensionsPath)\Microsoft\VisualStudio\v8.0\WebApplications\Microsoft.WebApplication.targets" />
  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
       Other similar extension points exist, see Microsoft.Common.targets.
  <Target Name="BeforeBuild">
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  <Target Name="AfterBuild">
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