You are implementing an ASP.NET page that includes a text box.
You need to validate values that are typed by users to ensure that only numeric values are submitted.
Which control markup should you use?

• A. <asp:TextBox ID="txt1" runat="server" CausesValidation="true" ValidationGroup= "Numeric" />
• B. <asp:TextBox ID="txt1" runat="server" /> <asp:RegularExpressionValidator ID="val1" EnableClientScript="true" ControlToValidate="txt1" ValidationExpression="[0-9]*" ErrorMessage="Invalid input value" />
• C. <asp:TextBox ID="txt1" runat="server" /> <asp:RegularExpressionValidator ID="val1" runat="server" ControlToValidate="txt1"
  ValidationExpression="[0-9]*" ErrorMessage="Invalid input value" />
• D. <asp:TextBox ID="txt1" runat="server" EnableClientScript="true" ValidationGroup= "Numeric" />

You create a Web page named TestPage.aspx and a user control named contained in a file named
TestUserControl.ascx.
You need to dynamically add TestUserControl.ascx to TestPage.aspx.
Which code segment should you use?

• A. protected void Page_Load(object sender, EventArgs e)
  {
  Control userControl = Page.LoadControl("TestUserControl.ascx");
  Page.Form.Controls.Add(userControl);
  }
• B. protected void Page_Load(object sender, EventArgs e)
  {
  Control userControl = Page.FindControl("TestUserControl.ascx");
  Page.Form.Controls.Load(userControl);
  }
• C. protected void Page_PreInit(object sender, EventArgs e)
  {
  Control userControl = Page.FindControl("TestUserControl.ascx");
  Page.Form.Controls.Load(userControl);
  }
• D. protected void Page_PreInit(object sender, EventArgs e)
  {
  Control userControl = Page.LoadControl("TestUserControl.ascx");
  Page.Form.Controls.Add(userControl);
  }

You are developing an ASP.NET AJAX extender control.
The extender includes the following segment.
public class DisabledButtonExtender : ExtenderControlBase
{ [ExtenderControlProperty] public string TargetID {
get{...} set{...} } }
You need to ensure that the extender can be user to extend only text boxes and that the targetID property can reference only buttons.
What should you do?

• A. Apply the following attribute to the class. [TargetControlType(typeof(TextBox))]
  Apply the following attribute to TargetID
  [IDReferenceProperty(typeof(Button))]
• B. Apply the following attribute to the class. [ValidationProperty("TextBox")]
  Apply the fallowing attribute to TargetID
  [Filterable(true)]
• C. Apply the following attribute to the class. [ValidationProperty("TextBox")]
  Apply the following attribute to TargetID
  [IDReferenceProperty(typeof(Button))]
• D. Apply the following attribute to the class. [TargetControlType(typeof(TextBox))]
  Apply the following attribute to TargetID
  [Filterable(true)]

You are implementing an ASP.NET page.
You add asp:Button controls for Help and for Detail.
You add an ASP.NET skin file named default.skin to a theme.
You need to create and use a separate style for the Help button, and you must use the default style for the
Detail button.
What should you do?

• A. Add the following markup to the default.skin file.
  <asp:Button ID="Help"></asp:Button>
  <asp:Button ID="Default"></asp:Button>
  Use the following markup for the buttons in the ASP.NET page.
  <asp:Button SkinID="Help">Help</asp:Button>
  <asp:Button SkinID="Default">Detail</asp:Button>
• B. Add the following code segment to default.skin.
  <asp:Button SkinID="Help"></asp:Button>
  <asp:Button></asp:Button>
  Use the following markup for the buttons in the ASP.NET page.
  <asp:Button SkinID="Help"></asp:Button>
  <asp:Button SkinID="Default">Detail</asp:Button>
• C. Add the following markup to default.skin.
  <asp:Button SkinID="Help"></asp:Button>
  <asp:Button></asp:Button>
  Use the following markup for the buttons in the ASP.NET page.
  <asp:Button SkinID="Help">Help</asp:Button>
  <asp:Button>Detail</asp:Button>
• D. Add the following markup to the default.skin file.
  <asp:Button SkinID="Help"></asp:Button>
  <asp:Button ID="Default"></asp:Button>
  Use the following markup for the buttons in the ASP.NET page.
  <asp:Button SkinID="Help">Help</asp:Button>
  <asp:Button SkinID="Default">Detail</asp:Button>

You are debugging an ASP.NET web page. The page includes the following method:
[WebMethod]
public string GetServerString()
{
...
}
The page also includes the following markup:
<asp:ScriptManager ID="sm1" runat="server" />
The following JavaScript code is used to call the GetServerString method:
function GetString() { PageMethods.GetServerString(callbackMethod); }
function callbackMethod(str) {
...
}
The AJAX calls to the GetServerString method are failing.
You need to ensure that the AJAX call to the GetServerString method succeeds.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

• A. Change the WebMethod attribute of the GetServerString method to WebMethod (EnableSession=true).
• B. Declare the GetServerString method as static.
• C. Set the EnablePartialRendering property of the ScriptManager control to true.
• D. Set the EnablePageMethods property of the ScriptManager control to true.