adding new row on gridview

Hi,

copy the datatable to the session, and on click of the button add a row to datatable and bind the gridview with the new datatabl;e and copy the datatable back to session.

private void binddata()
{
    string connstring = @"Data Source=LENOVO-41B3F2CE\SQLEXPRESS;Initial Catalog=IMS;Integrated Security=True;Pooling=False";
    string query = "SELECT * FROM ['ISB VAS Nodes$']";
    SqlDataAdapter da = new SqlDataAdapter(query, connstring);
    DataTable dt = new DataTable();
    da.Fill(dt);
    GridView1.DataSource = dt;
    Session["data"] = dt; //copy the datatable to session.
    GridView1.DataBind();
}

Button click event :

DataTable dt = ((DataTable)Sessio["data"]);
if(dt != null)
{
    dt.Rows.Add("c1","c2","c3"); // add your the column values
    dt.AcceptChanges();
    GridView1.DataSource = dt;
    Session["data"] = dt; //copy the datatable back to session.
    GridView1.DataBind();
}

further refer below articles.
Insert a new row to gridview[^]
Dynamically adding and deleting rows from ASP.NET GridView[^]

hope it helps.

Hi..

Write code in your addnewrow button onclick,
just add blow code.


GridView1.ShowFooter=True;

private void BindGrid(int rowcount)
{
DataTable dt = new DataTable();
DataRow dr;
dt.Columns.Add(new System.Data.DataColumn("TextBox1Column", typeof(String)));

if (ViewState["CurrentData"] != null)
{
for (int i = 0; i < rowcount + 1; i++)
{
dt = (DataTable)ViewState["CurrentData"];
if (dt.Rows.Count > 0)
{
dr = dt.NewRow();
dr[0] = dt.Rows[0][0].ToString();

}
}
dr = dt.NewRow();
dr[0] = TextBox1.Text;
dt.Rows.Add(dr);

}
else
{
dr = dt.NewRow();
dr[0] = TextBox1.Text;
dt.Rows.Add(dr);

}