protected void btnUpdate_Click(object sender, EventArgs e) { if (ValidateRecord()) { ENTPRJPROJECTTASKRESOURSEACTIVITY activity = DALProjectTaskResourseActivity.GetValueTaskResourseActivityForUpdate(Guid.Parse(Request.QueryString["ID"])); if (activity != null) { activity.ID = Guid.Parse(Request.QueryString["ID"]); if (!string.IsNullOrEmpty(txtDuration.Text)) { activity.RESOURSEDURATION = Convert.ToByte(txtDuration.Text); } else { activity.RESOURSEDURATION = null; } activity.DESCRIPTION = txtDescription.Text; activity.DATE = DateTime.Parse(txtDate.Text); DALProjectTaskResourseActivity.UpdateActivity(activity); Response.Redirect("/Prj/PRJMyActivity.aspx?ID=" + PROJECTTASKRESOURSEID); } } }