单项选择题

You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.
Your application has a user control named UserCtrl.ascx. You write the following code fragment to create a Web page named Default.aspx.

You need to dynamically add the UserCtrl.ascx control between the lblHeader and lblFooter Label controls.
What should you do? （）

A.
B.
C.
D.

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单项选择题

You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create a Web form and add the following code fragment. The SqlDataSource1 DataSource control retrieves the Quantity column values from a table named Products. You write the following code segment to create the rptData_ItemDataBound event handler. (Line numbers are included for reference only.) 01 Protected Sub rptData_ItemDataBound(ByVal sender As Object, _ 02 ByVal e As RepeaterItemEventArgs) 03 04 If lbl IsNot Nothing Then 05 If Integer.Parse(lbl.Text) < 10 Then 06 lbl.ForeColor = Color.Red 07 End If 08 End If 09 End Sub You need to retrieve a reference to the lblQuantity Label control into a variable named lbl. Which code segment should you insert at line 03?（）

A.
B.
C.
D.

单项选择题

You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create a Web form and add the following code fragment. The SqlDataSource1 DataSource control retrieves the Quantity column values from a table named Products. You write the following code segment to create the rptData_ItemDataBound event handler. (Line numbers are included for reference only.) 01 protected void rptData_ItemDataBound(object sender, 02 RepeaterItemEventArgs e) 03 { 04 05 if(lbl != null) 06 if(int.Parse(lbl.Text) < 10) 07 lbl.ForeColor = Color.Red; 08 } You need to retrieve a reference to the lblQuantity Label control into a variable named lbl. Which code segment should you insert at line 04?（）

A.Label lbl = Page.FindControl("lblQuantity") as Label;
B.Label lbl = e.Item.FindControl("lblQuantity") as Label;
C.Label lbl = rptData.FindControl("lblQuantity") as Label;
D.Label lbl = e.Item.Parent.FindControl("lblQuantity") as Label;