This is user defined control based on ASP.NET. as for those who need to apply drag&drop with control, this is a good one.

Packet : 39709582customformsdesigner.rar filelist
CustomFormsDesigner
CustomFormsDesigner\App.config
CustomFormsDesigner\App.ico
CustomFormsDesigner\AssemblyInfo.cs
CustomFormsDesigner\bin
CustomFormsDesigner\bin\Debug
CustomFormsDesigner\EULA.doc
CustomFormsDesigner\FormDesigner.csproj
CustomFormsDesigner\FormDesigner.csproj.user
CustomFormsDesigner\FormDesigner.sln
CustomFormsDesigner\FormDesigner.suo
CustomFormsDesigner\impls
CustomFormsDesigner\impls\DesignerHostImpl.cs
CustomFormsDesigner\impls\DesignerTransactionImpl.cs
CustomFormsDesigner\impls\DictionaryServiceImpl.cs
CustomFormsDesigner\impls\MenuCommandServiceImpl.cs
CustomFormsDesigner\impls\NameCreationServiceImpl.cs
CustomFormsDesigner\impls\SelectionServiceImpl.cs
CustomFormsDesigner\impls\SiteImpl.cs
CustomFormsDesigner\impls\ToolboxSchema.cs
CustomFormsDesigner\impls\ToolboxServiceImpl.cs
CustomFormsDesigner\impls\ToolboxServiceImpl.resx
CustomFormsDesigner\impls\TypeDescriptorFilterServiceImpl.cs
CustomFormsDesigner\MainWindow.cs
CustomFormsDesigner\MainWindow.resx
CustomFormsDesigner\obj
CustomFormsDesigner\obj\Debug
CustomFormsDesigner\XmlSerializerSectionHandler.cs

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