protected void btnSave_Click(object sender, EventArgs e) { if (Page.IsValid) { CustomerBAL obj = new CustomerBAL(); obj.CustomerID = Convert.ToInt64(hdnCustomerID.Value); obj.FirstName = txtFirstName.Text.Trim(); obj.LastName = txtLastName.Text.Trim(); // obj.BirthDate = Convert.ToDateTime(txtBirthDate.Text.Trim()); //obj.BirthDate = Convert.ToDateTime((txtBirthDate.Text).ToString()); obj.BirthDate = DateTime.ParseExact(this.txtBirthDate.Text, "dd/MM/yyyy", null); obj.Email = txtEmail.Text.Trim(); obj.Address = txtAddress.Text.Trim(); int retVal = obj.InsertUpdateCustomer(obj); obj = null; if (retVal > 0) { BindGrid(); ClearControls(); Page.ClientScript.RegisterStartupScript(this.GetType(), "Saved", "<script>alert('Saved successfully.');</script>"); } else { Page.ClientScript.RegisterStartupScript(this.GetType(), "Saved", "<script>alert('Error while saving.');</script>"); } } }