Creating Controls dynamically in asp.net

for creating dynamic controls in asp.net , we should take panel control, write the code in default.aspx source 

default.aspx file

<div>

    <asp:Panel ID="pnlinfo" runat="server" Height="36px" Width="1349px">

    </asp:Panel>

</div>

default.aspx.cs file

protected void Page_Load(object sender, EventArgs e)

    {

        Table tbldynamic = new Table();

        TableCell tc = new TableCell();

        TableCell tc1 = new TableCell();

        TableRow tr = new TableRow();

        Label lblName = new Label();

        lblName.ID = "lblName";

        lblName.Text = "UserName:";

        tc.Controls.Add(lblName);

        TextBox txtName = new TextBox();

        txtName.ID = "txtName";

        tc1.Controls.Add(txtName);

        tr.Cells.Add(tc);

        tr.Cells.Add(tc1);

        tbldynamic.Rows.Add(tr);

        tc = new TableCell();

        tc1 = new TableCell();

        tr = new TableRow();

        Label lblEmail = new Label();

        lblEmail.ID = "lblEmail";

        lblEmail.Text = "Email:";

        tc.Controls.Add(lblEmail);

        TextBox txtEmail = new TextBox();

        txtEmail.ID = "txtEmail";

        tc1.Controls.Add(txtEmail);

        tr.Cells.Add(tc);

        tr.Cells.Add(tc1);

        tbldynamic.Rows.Add(tr);

        tc = new TableCell();

        tc1 = new TableCell();

        tr = new TableRow();

        Button btnSubmit = new Button();

        btnSubmit.ID = "btnSubmit";

        btnSubmit.Text = "Submit";

        btnSubmit.Click += new System.EventHandler(btnSubmit_click);

        tc1.Controls.Add(btnSubmit);

        tr.Cells.Add(tc);

        tr.Cells.Add(tc1);

        tbldynamic.Rows.Add(tr);

        pnlinfo.Controls.Add(tbldynamic);

        Table tbl = new Table();

        for (int i = 0; i < 5; i++)

        {

            TableCell tcell = new TableCell();

            TableRow trow = new TableRow();

            CheckBox _checkbox = new CheckBox();

            _checkbox.ID = "chkDynamicCheckBox" + i;

            _checkbox.Text = "Checkbox" + i;

            tcell.Controls.Add(_checkbox);

            trow.Cells.Add(tcell);

            tbl.Rows.Add(trow);

        }

        pnlinfo.Controls.Add(tbl);

    }

    protected void btnSubmit_click(object sender, EventArgs e)

    {

        TextBox txtUserName = (TextBox)pnlinfo.FindControl("txtName");

        TextBox txtEmail = (TextBox)pnlinfo.FindControl("txtEmail");

        Response.Write("UserName: " + txtUserName.Text + "; " + "Email: " + txtEmail.Text);

    }

build application and run in browser, finally you will get respected output