实现scatterview中的元素移出scatterview，并drop到listbox中。

[{"title":"（ 41 个子文件 120KB ） 实现scatterview中的元素移出scatterview，并drop到listbox中。","children":[{"title":"scatterview-listbox","children":[{"title":"SurfaceApplication2","children":[{"title":"SurfaceApplication2.csproj <span style='color:#111;'> 4.61KB </span>","children":null,"spread":false},{"title":"bin","children":[{"title":"Debug","children":[{"title":"SurfaceApplication2.pdb <span style='color:#111;'> 41.50KB </span>","children":null,"spread":false},{"title":"SurfaceApplication2.xml <span style='color:#111;'> 1.87KB </span>","children":null,"spread":false},{"title":"Resources","children":[{"title":"icon.png <span style='color:#111;'> 16.89KB </span>","children":null,"spread":false}],"spread":true},{"title":"SurfaceApplication2.vshost.exe.manifest <span style='color:#111;'> 490B </span>","children":null,"spread":false},{"title":"SurfaceApplication2.exe <span style='color:#111;'> 17.00KB </span>","children":null,"spread":false},{"title":"SurfaceApplication2.vshost.exe <span style='color:#111;'> 11.32KB </span>","children":null,"spread":false}],"spread":true}],"spread":true},{"title":"App.xaml <span style='color:#111;'> 595B </span>","children":null,"spread":false},{"title":"SurfaceWindow1.xaml <span style='color:#111;'> 3.84KB </span>","children":null,"spread":false},{"title":"obj","children":[{"title":"Debug","children":[{"title":"SurfaceWindow1.g.cs <span style='color:#111;'> 6.40KB </span>","children":null,"spread":false},{"title":"App.g.i.cs <span style='color:#111;'> 2.66KB </span>","children":null,"spread":false},{"title":"SurfaceApplication2_MarkupCompile.cache <span style='color:#111;'> 367B </span>","children":null,"spread":false},{"title":"SurfaceApplication2.pdb <span style='color:#111;'> 41.50KB </span>","children":null,"spread":false},{"title":"App.baml <span style='color:#111;'> 837B </span>","children":null,"spread":false},{"title":"SurfaceApplication2.csproj.FileListAbsolute.txt <span style='color:#111;'> 4.12KB 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