Updating and adding new row to dynamically created bound fields in Gridview

@Vijay,

As i told u earlier i am adding bound fields dynamically 

            BackColor="White" CellPadding="3" PageSize="30" Width="700px"
            onpageindexchanging="GVDetails_PageIndexChanging"
            onrowcancelingedit="GVDetails_RowCancelingEdit"
            onrowdeleting="GVDetails_RowDeleting" onrowediting="GVDetails_RowEditing"
            onrowupdating="GVDetails_RowUpdating" Font-Names="Tahoma"
            Font-Size="8.25pt">
          
          
          
           
            <%----%>
           
       

Hi Vijay,

I have checked...I want to know 1 thing.

dtrow["Name"] = ((TextBox)grv.FindControl("txtName")).Text;
from where did u get txtname?

After adding the bound fields to the gridview, you can add the new row by using the above code.
Have you checked that?

Hi Vijay,

The code u have given is for gridview which has not been created dynamically... I have created the bound fields dynamically.. In that case how will u add a blank row to the gridview?

Take a button control in footer as AddNewRow then on click event of that button call the below code
For example:
 
public void AddNewRow()
    {
        DataTable dt = new DataTable();
        dt.Columns.Add("SrNo", typeof(int));
        dt.Columns.Add("Name", typeof(string));
        dt.Columns.Add("City", typeof(string));
        foreach (GridViewRow grv in GridView1.Rows)
        {
            DataRow dtrow;
            dtrow = dt.NewRow();
            dtrow["SrNo"] = ((Label)grv.FindControl("lblSrNo")).Text;
            dtrow["Name"] = ((TextBox)grv.FindControl("txtName")).Text;
            dtrow["City"] = ((TextBox)grv.FindControl("txtCity")).Text;
            dt.Rows.Add(dtrow);
        }
        DataRow dtrow1;
        dtrow1 = dt.NewRow();
        dt.Rows.Add(dtrow1);
        GridView1.DataSource = dt;
        GridView1.DataBind();
    }
    protected void btnAddNewRow_Click(object sender, EventArgs e)
    {
        AddNewRow();
    }

HI Vijay,

I have created dynamic bound fields and also have done with the updating .... Can someone tell me how can we add rows to such gridview

Suchitra, Please visit the below link, may be it will help you...

http://www.codeproject.com/KB/aspnet/How_to_create_custom_boun.aspx