In Step 3, remove the following sentence:
Set the InitialValue property of the rfvCountry to <Select a Country>.
and place it to the end of Step 4.

6. Drag three Label controls (name the first as lblCode), two TextBox controls (txtName and txtAddress), and a Button control (btnFinish to the Web form (see Figure 3.19).

14. B. You get an error while executing the Server.Execute() method because the view state of the "ShowData.aspx" page is passed to the "GetData.aspx" page along with the form and query string collections, causing the ASP.NET machine authentication check to fail. You need to set the EnableViewStateMac attribute of the Page directive in the "GetData.aspx" page to false in order  to resolve this error. For more information, see the section "Navigation Between Pages" in this chapter.

Also modify figure 4.12 to reflect this change.

2. Add the following using directive to your code:
using System.Diagnostics;
Add the following code to the Application_Error() event handler:

protected void Application_Error(Object sender, EventArgs e)
{
    // Get the Exception object wrapped in the InnerException property
   Exception unhandledException =
              (Exception)Server.GetLastError().InnerException;
   // Create an EventLog instance and assign its source.
   EventLog eventLog = new EventLog("Application");
   eventLog.Source = "Application";

   // Write an informational entry to the event log.
   eventLog.WriteEntry(unhandledException.Message +
                 unhandledException.StackTrace);
    Response.Write("An exception occurred: Check Application event log for details");
    Server.ClearError();
}

Skip Sailor

Make sure that you modify Web.Config file to set the mode attribute of the <customErrors> element to "on". 

private void Page_Load(object sender, System.EventArgs e)
{
      if (!IsPostBack)
      {
            // Load the dataset for the dropdownlist
            sqlDataAdapter1.Fill(dsOrders1, "Orders");
            // And bind it
            ddlOrders.DataSource = dsOrders1;
            ddlOrders.DataTextField = "OrderID";
            ddlOrders.DataValueField = "OrderID";
            ddlOrders.DataBind();
            ddlOrders_SelectedIndexChanged(sender, e);
      }
}

to read as:

"If you haven't yet done that, refer back to Step By Step 5.11, particularly steps 4 through 6 and the accompanying note, for information on how to build a connection."

Your application database includes a number of tables. One of these tables is named Courses and it contains a list of course numbers and course names.

to:

UPDATE Products
SET Products.Discontinued = 1
FROM Products, Suppliers
WHERE Suppliers.SupplierID = Products.SupplierID
AND Suppliers.Country = 'Italy'

Use of Trim() method is needed because the primary key (CustomerID) is a fixed-width column (not a VarChar).

This method first checks the current value of the ChildControlsCreated property. If this value is false, the CreateChildControls() method is called.
 

protected override void Render(HtmlTextWriter output)
{
    //Preserve grid positioning information
    System.Collections.IEnumerator enumerator =
               this.Style.Keys.GetEnumerator();
    while(enumerator.MoveNext())
             output.AddStyleAttribute((string)enumerator.Current,
                               this.Style[(string)enumerator.Current]);
     //Render the control
     output.RenderBeginTag(HtmlTextWriterTag.Div);
     if (bold)
     {
           output.RenderBeginTag(HtmlTextWriterTag.B);
           output.Write(Text);
           output.RenderEndTag();
      }
     else
     {
           output.Write(Text);
      }
      output.RenderEndTag();
}

Modify the name of the constructor from Service1 to Strings

13. Set the Web Project as the starting project of the solution.

Select Project, Add Reference to add a reference to the System.Web.Services.dll library in your project

In Question 8, answer B, change Unicode.GetChars() to UnicodeEncoding.GetChars().

On the other hand, when a program is compiled using the Release configuration, it does not include any calls to the Debug class.

Enter the value 5 and click the Calculate button; you should find that factorial has been calculated, but there are no debug messages in the Output window.

Run the project by using the DEBUG configuration and enter a value for which to find the factorial.

private void btnGetProducts_Click(
           object sender, System.EventArgs e)
{
       sqlDataAdapter1.Fill(this.dataSet11);
       dgProducts.DataBind();
}

The WebSql application will be uninstalled from your computer.

1. Set the mode attribute of the <customError> element to either "Off" or "RemoteOnly" in the web.config file. 
2. Set 404.aspx as the start page of the project and run the project.

To resolve this error, either change the id attribute of the <form> element to a valid identifier such as "f404" or change the form name from 404.aspx to Custom404.aspx in the steps 4 and 5.

Switch to code view and add the following using directive:
using System.Data.SqlClient;

Switch to code view and add the following using directive:
using System.Data.SqlClient;

Place two Label controls (lblGenerateTime and lblMessage), a DropDownList control (ddlCountries), a Button control (btnGetCustomers), and a DataGrid control (dgCustomers) on the form.

In Step 4, change the first sentence to the following:

Switch to code view and add the following using directive:
using System.Data.SqlClient;