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Data display / File read / MapPath / Data connection / Send Email

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Data display

<%@ Page Language="C#" Debug="true" %> 
 <%@ Import Namespace="System.Xml" %>

<html>
<head>
    <title>Paged Data Source Example</title>
    <script language="C#" runat="server">
        PagedDataSource pg;
    
        void Page_Load(object sender, EventArgs e) 
        {
            Hashtable myHashTable = new Hashtable();
            for (int i = 5; i < 505; i++)
                myHashTable.Add(i.ToString(), (i*100).ToString());

// Create a new PAGED data source and config the settings.
            pg = new PagedDataSource();
            pg.DataSource = myHashTable;
            pg.AllowPaging = true;
            pg.PageSize = 5;
            // Move to the appropriate page based on the query string.
            try {
                pg.CurrentPageIndex = Int32.Parse(Request["Page"].ToString());
            } catch (Exception ex) {
                pg.CurrentPageIndex = 0;
            }
            // Enable and/or disable the previous and next buttons
            btnPrev.Enabled = !pg.IsFirstPage;
            btnNext.Enabled = !pg.IsLastPage;
            // Display which is the current page being displayed
            lblCurrentPage.Text = "Page: " + (pg.CurrentPageIndex + 1).ToString();
            // Attach data source to the datalist
            dlStocks.DataSource = pg;
            // Bind data.
            dlStocks.DataBind();
        }
        
        // Return to previous page
        public void Prev_Click(Object sender, EventArgs e)
        {
            Response.Redirect(Request.CurrentExecutionFilePath + "?Page=" + (pg.CurrentPageIndex - 1));
        }

// Move to next page
        public void Next_Click(Object sender, EventArgs e)
        {
            Response.Redirect(Request.CurrentExecutionFilePath + "?Page=" + (pg.CurrentPageIndex + 1));
        }
    </script>
</head>
<body>
    <form runat="server">
    <asp:DataList id="dlStocks" runat="server">
        <ItemTemplate>
            <hr size="0">
            Name: <%# DataBinder.Eval(Container.DataItem, "Key") %><br />
            Price: <%# DataBinder.Eval(Container.DataItem, "Value") %></a><br />
        </ItemTemplate>
    </asp:DataList>
    <hr size="0">
    <asp:LinkButton id="btnPrev" Text="<< Prev" OnClick="Prev_Click" runat="server"/>
    <asp:Label id="lblCurrentPage" runat="server"/>
    <asp:LinkButton id="btnNext" Text="Next >>" OnClick="Next_Click" runat="server"/>
    </form>
</body>
</html>

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File read

<%@ Import Namespace="System" %>
<%@ Import Namespace="System.IO" %>

void Page_Load(Object source, EventArgs e)
{
   output.set_Text("" + Anagrams.Go(get_Server().MapPath("..\\words.txt")) + "");
}

static class Anagrams
{
    public static String Go(String textFile)
    {
      //declare the StreamReader, for accessing the file
      StringWriter strWriter = new StringWriter();
      Console.SetOut(strWriter);

try
      {
         StreamReader din = File.OpenText(textFile);
         if (din!=null)
         {
            String str;
            ArrayList al = new ArrayList();

Console.WriteLine("Reading data and inserting into an ArrayList...");
            Console.WriteLine();

while((str=din.ReadLine()) != null)
            {
               al.Add(str);
            }

Console.WriteLine("Printing out the ArrayList.");
            Console.WriteLine("---------------------------");

String s= null;
            for (int i=0; i</script>

<table>
    <tr align="left"><th><span>The following example opens a text file for reading, and copies the information in the text file to an ArrayList.
      The ArrayList is then printed to the screen.
      <hr>
    </span></th></tr>
    <tr><td><h4><asp:label id="output" runat="server"/></h4></td></tr>
    </table>

</body>
</html>

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MapPath

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Data connection

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Send Email

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