使用此代码





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Use this code


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private void AddNewRowToGrid()
        {
            if (ViewState["CurrentTable"] != null)
            {
                DataTable dtCurrentTable = (DataTable)ViewState["CurrentTable"];
                DataRow drCurrentRow = null;

                drCurrentRow = dtCurrentTable.NewRow();
                drCurrentRow["SlNo"] = dtCurrentTable.Rows.Count + 1;
                drCurrentRow["ReceiptNo"] = txtRcptHdNo.Text;
                drCurrentRow["ItemName"] = ddlRcptDtlsItem.SelectedItem.Text;
                drCurrentRow["UOM"] = txtRcptDtlsUOM.Text;
                drCurrentRow["Description"] = txtRcptDtlsDescr.Text;
                drCurrentRow["Rate"] = txtRcptDtlsRt.Text;
                drCurrentRow["Quatity"] = txtRcptDtlsQty.Text;
                drCurrentRow["Amount"] = txtRcptDtlsAmount.Text;

                dtCurrentTable.Rows.Add(drCurrentRow);

                ViewState["CurrentTable"] = dtCurrentTable;
                dgvRcptDtls.DataSource = dtCurrentTable;
                dgvRcptDtls.DataBind();
            }
            else
            {
                Response.Write("ViewState is null");
            }

            //Set Previous Data on Postbacks
            SetPreviousData();
        }