Introduction to Linq ใน .net 3.5 ตอนที่1 พยายามจะเขียนมาเรื่อยๆนะครับ อยากให้ลองเปลี่ยนมาใช้ Linq ดู

    protected void Page_Load(object sender, EventArgs e)
    {
        Label1.Text = "";
        int[] x = new int[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14};
        foreach (int i in x)
        {
            if (i > 10)
                Label1.Text += i + "<br>";
        }
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        Label1.Text = "";
        var x = new int[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14};
        
        // คำสั่ง Linq
        var q = from p in x
                where p > 10
                select p;
        
        foreach (var i in q)
        {
            Label1.Text += i + "<br>";   
        }
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        Label1.Text = "";
        var x = new int[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14};
        
        // คำสั่ง Linq
        var q = from p in x
                where p > 10
                orderby p descending  // เรียงจากมากไปน้อย
                select p;
        
        foreach (var i in q.Take(3))  // เอาแค่ 3 ตัว
        {
            Label1.Text += i + "<br>";   
        }
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        Label1.Text = "";
        var x = new int[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14};
        
        // คำสั่ง Linq
        var q = from p in x
                where p > 10
                orderby p descending
                select p;

        Array.ForEach(q.Take(3).ToArray(), c => Label1.Text += c + "<br>");  // ส่วนนี้แก้ไขครับ
    }

    protected void Page_Load(object sender, EventArgs e)
    {
        Label1.Text = "";
        var x = new int[] {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14};
        
        // คำสั่ง Linq
        var q = from p in x
                where p > 10
                orderby p descending
                select new {a1 = p, a2 = p*2, a3 = p*3};

        Array.ForEach(q.Take(3).ToArray(), c => Label1.Text += c.a1+"  "+c.a2+"  "+c.a3 + "<br>");
    }