1. CS 3870/CS 5870
Test 2 (50 points)
Thursday
2 - 4

2. Accessing Database Code class DataSource Control
Your choice on the test

3. Data Binding
GridView
DetailsView
Textbox
DropDownList
. . .

4. DetailsView
AllowPage
For end user
For developer

5. Accessing Individual Elements of DetailsView
c.TheID = DetailsView1.Rows(0).Cells(1).Text
c.TheName = DetailsView1.Rows(1).Cells(1).Text

6. DropDownList One field of all records DataTextField
DataValueField: PK column

7. DetailsView and DropDownList
Using DropDownList to select records of DetailsView

8. Protected Sub DropDownList1_SelectedIndexChanged (sender As Object, e As EventArgs) Handles DropDownList1.SelectedIndexChanged DetailsView1.PageIndex = DropDownList1.SelectedIndex End Sub

9. PostBack Default True for Buttons
Default False for many other controls

10. Session Variables

11. Global.asax
Session("Prog7_Bag") = New SortedList

12. Accessing Session Variables
Protected Sub Page_Load(. . .) Handles Me.Load Dim bag As SortedList = Session("Prog7_Bag") End Sub

13. Web User Control A class Can have other controls Properties Methods
Events

14. Using Web User Control
Register Src="~/Prog7/ShoppingItem.ascx" TagPrefix="uc1" TagName="ShoppingItem" %>

15. Placing User Controls on Forms
At design time
At run time

16. Adding to Forms at Run Time
Protected Sub Page_Load(. . .) Handles Me.Load ‘ Need to find the form to add the control Dim theForm As Control = Master.Master.FindControl("form1") theForm.Controls.Add(c1) End Sub

17. Adding to Placeholder at Run Time
Protected Sub Page_Load(. . .) Handles Me.Load c1 = CType(LoadControl("../ShoppingItem.ascx"), Prog7_ShoppingItem) PlaceHolder1.Controls.Add(c1) End Sub

18. Adding to Panels at Run Time
Protected Sub Page_Load(. . .) Handles Me.Load c1 = CType(LoadControl("../ShoppingItem.ascx"), Prog7_ShoppingItem) Panel1.Controls.Add(c1) End Sub

19. Web User Control as a Class
Protected Sub btnBag_Click(. . .) Handles btnBag.Click c1 = New Prog7_ShoppingItem End Sub

20. Web User Control NOT as a Class
Protected Sub Page_Load(. . .) Handles Me.Load ‘ New does not work c1 = CType(LoadControl("../ShoppingItem.ascx"), Prog7_ShoppingItem) theForm.Controls.Add(c1) End Sub

21. Public Event
Define event
Raise event
Handle event

22. Test 2 (50 points)
Thursday
2 - 4