how to delete a row in gridview if using template field - asp.net

Question

I have tried so many times but i am not able to delete a row in GRID VIEW. I didn't create any database.I am just storing all the values of the text field in the GRID VIEW.If i want to delete a row in the GRID VIEW using template field button means,what will be the solution.
This is the way i am storing and populating values in GridView.
DataSet ds = new DataSet();
DataRow dr = ds.Tables[0].NewRow();
dr[0] = lbltxtcustomer.Text;
dr[1] = FNtxt.Text;
dr[2] = LNtxt.Text;
dr[3] = DrpdownMonth.Text + "/" + DrpdownDay.Text + "/" + DrpdownYear.Text;
dr[4] = lbltxtage.Text;
dr[5] = txtEmail.Text;
dr[6] = TxtPhone.Text;
dr[7] = Txtlocation.Text;
ds.Tables[0].Rows.Add(dr);
BindGrid()
;

Answer 1

Try This
HTML Markup
Below is the HTML Markup of the APS.Net GridView. Here I am making use the CommandFieldand OnRowDeleting event to delete the GridView Row. Hence I will apply the JavaScript Confirmation Box to the CommandFieldDelete Button itself.
<asp:GridView ID="GridView1" CssClass = "Grid" runat="server" OnRowDeleting="OnRowDeleting" AutoGenerateColumns = "false" OnRowDataBound = "OnRowDataBound">
<Columns>
<asp:BoundField DataField="Item" HeaderText="Item" />
<asp:BoundField DataField="Price" HeaderText="Price" />
<asp:CommandField ShowDeleteButton="True" ButtonType="Button" />
</Columns>
</asp:GridView>
Applying the JavaScript Confirmation Box to the GridView CommandField
Delete Button
To apply the JavaScript Confirmation Box, I am looking for the Button in the Controls of the GridView Cell Index 2 since it has the CommandField. Once
protected void OnRowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
string item = e.Row.Cells[0].Text;
foreach (Button button in e.Row.Cells[2].Controls.OfType<Button>())
{
if (button.CommandName == "Delete")
{
button.Attributes["onclick"] = "if(!confirm('Do you want to delete " + item + "?')){ return false; };";
}
}
}
}
Delete the ASP.Net GridView Row using CommandField and OnRowDeleting
event
Below is the code to delete the ASP.Net GridView Row using OnRowDeleting event
protected void OnRowDeleting(object sender, GridViewDeleteEventArgs e)
{
int index = Convert.ToInt32(e.RowIndex);
DataTable dt = ViewState["dt"] as DataTable;
dt.Rows[index].Delete();
ViewState["dt"] = dt;
BindGrid();
}