Beginning ASP.NET 4.5 in CSharp and VB Opsylum

482 x CHAPTER 13 DISPLAYING AND UPDATING DATA
DetailsView1.DefaultMode = DetailsViewMode.Edit
End If
End Sub
C#
protected void Page_Load(object sender, EventArgs e)
{
if (Request.QueryString.Get("Id") != null)
{
DetailsView1.DefaultMode = DetailsViewMode.Edit;
}
}
10. Open the Reviews.aspx page in Design View and drag the AddEditReview.aspx page from the
Solution Explorer onto the page below the GridView. This creates a link to this page so you can
insert new reviews. Switch to Markup View and change the text between the tags to Insert
New Review:
Insert New Review
11. Save all your changes and open AddEditReview.aspx in your browser. You should get the default
layout for the control, with simple text boxes for all the columns in the data source. Fill in the
fields as shown in Figure 13-18.
FIGURE 13-18
COMMON MISTAKES If you get an empty screen, make sure you set
DefaultMode to Insert. Be sure the GenreId that you enter matches one of the
genres in the Genre table in the database or you’ll get an error when you try to
insert the item. Also be sure you enter a valid date using the yyyy/mm/dd format,
where y stands for year, m for month, and d for day.
Click Insert to insert the item in the database. At first, not much seems to happen except that the
controls are now all cleared. However, you can now locate the new review through the Reviews
.aspx page by following these two steps: