Implement Next, Previous, First and Last on Button click using C# in ASP.Net

Hi Firuz,

Please refer the below code.

HTML

<div>
    <asp:Panel ID="Panel1" runat="server" Width="720px" BackColor="#CCCCCC" HorizontalAlign="Center"
        CssClass="panel">
        <div class="LabelContainer">
            <asp:Label ID="Label5" runat="server" Font-Bold="True" Font-Size="X-Large" Height="25px"
                Text="Registration population"></asp:Label>
        </div>
        <div class="SecondLabelContainer">
            <asp:Label ID="Label8" runat="server" Text="Label"></asp:Label>
        </div>
        <div class="IdContainer">
            <asp:Label ID="Label1" runat="server" Text="Id"></asp:Label>
            <asp:TextBox ID="ID" runat="server" Width="50"></asp:TextBox>
        </div>
        <div class="FirstNameContainer">
            <asp:Label ID="Label3" runat="server" Text="FirstName"></asp:Label>
            <asp:TextBox ID="FirstName" runat="server" Width="120"></asp:TextBox>
        </div>
        <div class="NameContainer">
            <asp:Label ID="Label2" runat="server" Text="Name"></asp:Label>
            <asp:TextBox ID="Name" runat="server" Width="120"></asp:TextBox>
        </div>
        <div class="LastNameContainer">
            <asp:Label ID="Label4" runat="server" Text="LastName"></asp:Label>
            <asp:TextBox ID="LastName" runat="server" Width="120"></asp:TextBox>
        </div>
        <div class="BirthdayContainer">
            <asp:Label ID="Label6" runat="server" Text="Birthday"></asp:Label>
            <asp:TextBox ID="Birthday" runat="server" Width="120"></asp:TextBox>
        </div>
        <div class="AdresContainer">
            <asp:Label ID="Label7" runat="server" Text="Adress"></asp:Label>
            <asp:TextBox ID="Adress" runat="server" Width="120"></asp:TextBox>
        </div>
        <div class="ButtonContainer">
            <asp:Button ID="btnAdd" runat="server" Text="Add" OnClick="btnAdd_Click" />
            <asp:Button ID="btnSearch" runat="server" Text="Search" OnClick="btnSearch_Click" />
            <asp:Button ID="btnNext" runat="server" Text="Next" OnClick="btnNext_Click" />
            <asp:Button ID="btnPrevious" runat="server" Text="Previous" OnClick="btnPrevious_Click" />
            <asp:Button ID="btnFirst" runat="server" Text="First" OnClick="btnFirst_Click" />
            <asp:Button ID="btnLast" runat="server" Text="Last" OnClick="btnLast_Click" />
        </div>
    </asp:Panel>
</div>

Code

public static int index = 0;
string str = ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
protected void Page_Load(object sender, EventArgs e)
{
    if (IsPostBack)
    {
        HttpContext.Current.Session["ArrayPos"] = null;
    }
    else
    {
        btnFirst.Enabled = false;
        btnLast.Enabled = false;
        btnNext.Enabled = false;
        btnPrevious.Enabled = false;
    }
}

protected void btnAdd_Click(object sender, EventArgs e)
{
    SqlConnection con = new SqlConnection(str);
    SqlCommand cmd = new SqlCommand();
    cmd.CommandType = System.Data.CommandType.StoredProcedure;
    cmd.CommandText = "INSERTINFO";
    cmd.Parameters.AddWithValue("@FirstName", FirstName.Text);
    cmd.Parameters.AddWithValue("@Name", Name.Text);
    cmd.Parameters.AddWithValue("@LastName", LastName.Text);
    cmd.Parameters.AddWithValue("@Birthday", Birthday.Text);
    cmd.Parameters.AddWithValue("@Adress", Adress.Text);
    cmd.Connection = con;
    con.Open();
    try
    {
        cmd.ExecuteNonQuery();
    }
    catch { }
    con.Close();
}

public ArrayList GetInfo(string Name)
{
    ArrayList list = null;
    if (HttpContext.Current.Session["ArrayPos"] == null)
    {
        list = new ArrayList();
        SqlConnection con = new SqlConnection(str);
        SqlCommand cmd = new SqlCommand();
        cmd.CommandType = System.Data.CommandType.StoredProcedure;
        cmd.CommandText = "SEARCHINFO";
        cmd.Parameters.AddWithValue("@Name", Name);
        cmd.Connection = con;
        con.Open();
        SqlDataReader rdr = cmd.ExecuteReader();
        while (rdr.Read())
        {
            list.Add(string.Join(";", rdr["Id"], rdr["FirstName"], rdr["Name"], rdr["LastName"], rdr["Birthday"], rdr["Address"]));
        }
        HttpContext.Current.Session["ArrayPos"] = list;
    }
    else
    {
        list = HttpContext.Current.Session["ArrayPos"] as ArrayList;
    }
    return list;
}

protected void btnSearch_Click(object sender, EventArgs e)
{
    if (Name.Text == "")
    {
        Label8.Text = "TextBox name is empty!";
        Name.Focus();
    }
    else
    {
        Label8.Text = "";
        ArrayList dt = GetInfo(Name.Text);
        index = 0;
        if (dt.Count > 0)
        {
            string[] pos = dt[index].ToString().Split(';');
            ID.Text = pos[0].ToString();
            FirstName.Text = pos[1].ToString();
            Name.Text = pos[2].ToString();
            LastName.Text = pos[3].ToString();
            Birthday.Text = pos[4].ToString();
            Adress.Text = pos[5].ToString();
        }
        else
        {
            Label8.Text = "People not saved in database!";
        }
    }
    btnFirst.Enabled = true;
    btnLast.Enabled = true;
    btnNext.Enabled = true;
    btnPrevious.Enabled = true;
}

protected void btnNext_Click(object sender, EventArgs e)
{
    ArrayList dt = GetInfo(Name.Text);
    btnPrevious.Enabled = true;
    index = index + 1;
    if (index < dt.Count)
    {
        string[] pos = dt[index].ToString().Split(';');
        ID.Text = pos[0].ToString();
        FirstName.Text = pos[1].ToString();
        Name.Text = pos[2].ToString();
        LastName.Text = pos[3].ToString();
        Birthday.Text = pos[4].ToString();
        Adress.Text = pos[5].ToString();
        if (index == dt.Count - 1)
        {
            btnNext.Enabled = false;
        }
        else
        {
            btnNext.Enabled = true;
        }
    }
}

protected void btnPrevious_Click(object sender, EventArgs e)
{
    ArrayList dt = GetInfo(Name.Text);
    btnNext.Enabled = true;
    index = index - 1;
    if (index < dt.Count)
    {
        string[] pos = dt[index].ToString().Split(';');
        ID.Text = pos[0].ToString();
        FirstName.Text = pos[1].ToString();
        Name.Text = pos[2].ToString();
        LastName.Text = pos[3].ToString();
        Birthday.Text = pos[4].ToString();
        Adress.Text = pos[5].ToString();
        if (index == 0)
        {
            btnPrevious.Enabled = false;
        }
        else
        {
            btnPrevious.Enabled = true;
        }
    }
}

protected void btnFirst_Click(object sender, EventArgs e)
{
    ArrayList dt = GetInfo(Name.Text);
    btnNext.Enabled = true;
    index = 0;
    string[] pos = dt[index].ToString().Split(';');
    ID.Text = pos[0].ToString();
    FirstName.Text = pos[1].ToString();
    Name.Text = pos[2].ToString();
    LastName.Text = pos[3].ToString();
    Birthday.Text = pos[4].ToString();
    Adress.Text = pos[5].ToString();
    if (index == 0)
    {
        btnPrevious.Enabled = false;
    }
    else
    {
        btnPrevious.Enabled = true;
    }
}

protected void btnLast_Click(object sender, EventArgs e)
{
    ArrayList dt = GetInfo(Name.Text);
    btnNext.Enabled = false;
    index = dt.Count - 1;
    string[] pos = dt[index].ToString().Split(';');
    ID.Text = pos[0].ToString();
    FirstName.Text = pos[1].ToString();
    Name.Text = pos[2].ToString();
    LastName.Text = pos[3].ToString();
    Birthday.Text = pos[4].ToString();
    Adress.Text = pos[5].ToString();
    if (index == 0)
    {
        btnPrevious.Enabled = false;
    }
    else
    {
        btnPrevious.Enabled = true;
    }
}

Screenshot

Check the code it will work for any no of record that matches with your table, when you reach the last record at that time button next is disabled and when you reach the first record previous button is disabled. Chech it is working.