how can I add a new row to datagrid at every button click

I want to add new row to gridcontrol at every button click. I tried many ways but no success. I am sending my code below.

private void B_Click(object sender, EventArgs e)

{

Button bt = (Button)sender;

 int productId = (int)bt.Tag; AddProductDataContext db = new AddProductDataContext();

decimal Quantity;

decimal.TryParse(txtCalculator.Text, out Quantity);

gridControl1.DataSource = from inv in db.Inventories where inv.RecId == productId

                            select new {

inventoryName = inv.InventoryName,

Quantity, Total = Quantity * inv.InventoryPrice };

gridView1.AddNewRow();

gridView1.UpdateCurrentRow();

}

Is there anyone to help me out there for the above? Thanks in advance for your precious replies.

Hey,

You need to define the DataTable at form level. Then in button click you can do:

private void button_Click(object sender, EventArgs e)

DataRow NewRow = table.NewRow();

table.Rows.Add(NewRow);

gridview.DataSource=table; //specify the source

For defining table at form level:

DataTable table; //DataTable at form level

private DataTable CreateTable() {

table=new Datatable(); //here insntianting the form level table.

table.Columns.Add("Name".ToString());

table.Columns.Add("Size".ToString());

DataRow dr = table.NewRow();

dr["Name"] = "Mike";

DataRow dr2 = table.NewRow();

dr2["Name"] = "Ryan;

DataRow dr3 = table.NewRow();

dr3["Name"] = "Taylor";

dr["Size"] = " one";

dr2["Size"] = "two";

table.Rows.Add(dr);

table.Rows.Add(dr2);

table.Rows.Add(dr3);

return table; //and on my constructor I set gridview.DataSource=Datatable;