You are creating a Windows Forms application by using the .NET Framework 3.5. You create a new form in your application.You add 100 controls at run time in the Load event handler of the form.  Users report that the form takes a long time to get displayed. You need to improve the performance of the form. What should you do？（）

单项选择题You are creating a Windows Forms application for a financial service provider by using the .NET Framework 3.5. You have to implement a multiple document interface （MDI） in the application to allow users to open multiple financial documents simultaneously.You need to ensure that whenever the child MDI form is created， the application displays a message in the title bar of the parent MDI that a child form has received focus.   What should you do？（）

A.Implement theActivated event
B.Implement the MdiChildActivate event
C.Override the OnParentVisibleChanged method
D.Override the OnParentBindingContextChanged method

多项选择题YouarecreatingaWindowsFormsapplicationbyusingthe.NETFramework3.5.TheapplicationdisplaysemployeenamesbyusingtheTreeViewcontrol.YouneedtoimplementthedraganddropfunctionalityintheTreeViewcontrol.Whichtwoactionsshouldyouperform？（）

A.Set theAllowDrag property to true.Create an event handler for the DragOver event.
B.Set theAllowDrag property to true.Create an event handler for the ItemDrag event to call the DoDragDrop method.
C.Set theAllowDrag property to true.Create an event handler for the DragEnter event to call the DoDragDrop method .
D.Create an event handler for the DragDrop event to handle the move or copy by itself.
E.Create an event handler for the DragEnter event to handle the move or copy by itself.

单项选择题You create Windows Forms applications by using the .NET Framework 3.5. You plan to deploy a new application by using the ClickOnce technology.During deployment， the application performs the following tasks： （1）Modifies registry keys   （2）Modifies the files located in the %PROGRAM FILES% folder  （3）Administrative permissions are not granted to users who install the application    You need to ensure that the following requirements are met：  （1）The application can be deployed to Windows Vista client computers that are not part of an Active Directory domain  （2）When the application is deployed， users are not prompted to elevate their permissions    What should you do？（）

A.Create a manifest and set the RequestedExecutionLevel level attribute to AsInvoker.
B.Create a manifest and set the RequestedExecutionLevel level attribute to As Administrator.
C.Create a new certificate trust list （CTL）.Use the CertMgr.exe tool to install the CTL on the local computer.
D.Create a new certificate trust list （CTL）.Install the CTL on the server that has theClickOnce application published.

单项选择题YoucreateWindowsFormsapplicationsbyusingthe.NETFramework3.5.YouplantodeployanewapplicationbyusingtheClickOncedeploymenttechnology.Theapplicationissignedbyusingacertificateobtainedfromatrustworthyauthority.YouneedtoensurethattheapplicationcanbedeployedasatrustedapplicationtoWindowsVistaclientcomputersonacorporatenetwork.Whatshouldyoudo？（）

A.Create a manifest and set the RequestedExecutionLevel level attribute to AsInvoker.
B.Create a manifest and set the RequestedExecutionLevel level attribute to AsAdministrator.
C.Create a new certificatetrust list （CTL）.Install the CTL on the server that has the ClickOnce application published.
D.Create a new certificate trust list （CTL）.Request the network administrator to deploy the CTL by using Group Policy.

单项选择题You create Windows Forms applications by using the .NET Framework 3.5. You plan to use a setup project to deploy a new Windows Forms application.The application uses a component that requires the Microsoft NET Framework 1.1.You need to create a launch condition so that the application can be deployed on client computers.   What should you do？（）

A.Use the Depth property.
B.Use the Version property.
C.Use the MinVersion property.
D.Use the ComponentID property.