Dynamically Create Different Controls on Grid view as a Single Column

Usually we use Grid view control to display either a static or dynamic data (ie., in row column format). We may use either datatable , dataview , dataset to display records. Here is also the same but quit different to create more than one control in gridview as a single column. We may add such a set of controls for more than one time depends on the need of the user. Here is the code for you dear friends....

Dynamically Create Different Controls on Grid view as a Single Column

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            SetInitialRow();
           
        }
    }

   private void AddNewRowToGrid()
    {
        int rowIndex = 0;
        if (ViewState["CurrentTable"] != null)
        {
            DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
            DataRow drCurrentRow = null;
            if (dtCurrentTable.Rows.Count > 0)
            {
                for (int i = 1; i <= dtCurrentTable.Rows.Count ; i++)
                {
                    TextBox tname = (TextBox)Gridview1.Rows[rowIndex].Cells[0].FindControl("txtName");
                    DropDownList sex = (DropDownList)Gridview1.Rows[rowIndex].Cells[0].FindControl("cboSex");
                    TextBox dob = (TextBox)Gridview1.Rows[rowIndex].Cells[0].FindControl("txtDob");
                    drCurrentRow = dtCurrentTable.NewRow();
                    drCurrentRow["Name"] = tname.Text;
                    drCurrentRow["Sex"] = sex.SelectedItem.Text;
                    drCurrentRow["Dob"] = dob.Text;
                    rowIndex++;
                }
                dtCurrentTable.Rows.Add(drCurrentRow);
                ViewState["CurrentTable"] = dtCurrentTable;
                Gridview1.DataSource = dtCurrentTable;
                Gridview1.DataBind();
            }
        }
        else
        {
            Response.Write("ViewState is null");
        }
        SetPreviousData();
    }

    private void SetPreviousData()
    {
        int rowIndex = 0;
        if (ViewState["CurrentTable"] != null)
        {
            DataTable dt = (DataTable)ViewState["CurrentTable"];
            if (dt.Rows.Count > 0)
            {
                for (int i = 1; i < dt.Rows.Count; i++)
                {
                    TextBox tname = (TextBox)Gridview1.Rows[rowIndex].Cells[0].FindControl("txtName");
                    DropDownList sex = (DropDownList)Gridview1.Rows[rowIndex].Cells[0].FindControl("cboSex");
                    TextBox dob = (TextBox)Gridview1.Rows[rowIndex].Cells[0].FindControl("txtdob");             
                    tname.Text = dt.Rows[i]["Name"].ToString();
                    sex.Text = dt.Rows[i]["Sex"].ToString();
                    dob.Text = dt.Rows[i]["Dob"].ToString();
                    rowIndex++;
                }
            }
        }
    }

    private void SetInitialRow()
    {
        DataTable dt = new DataTable();
        DataRow dr = null;    
        dt.Columns.Add(new DataColumn("Name", typeof(string)));
        dt.Columns.Add(new DataColumn("Sex", typeof(string)));
        dt.Columns.Add(new DataColumn("Dob", typeof(string)));    
        dr = dt.NewRow();     
        dr["Name"] = string.Empty;
        dr["Sex"] = string.Empty;
        dr["Dob"] = string.Empty; 
        dt.Rows.Add(dr);
        ViewState["CurrentTable"] = dt;
        Gridview1.DataSource = dt;
        Gridview1.DataBind();
    }

    protected void ButtonAdd_Click(object sender, EventArgs e)
    {
        AddNewRowToGrid();
    }
}