protected void LinkVer_Click(object sender, EventArgs e) { string usuarioID = Convert.ToString((sender as LinkButton).CommandArgument); DataTable dtbl = new DataTable(); dtbl = objUsuario.BuscarUsuario(usuarioID); txtCedula.Text = dtbl.Rows[0]["per_cedula"].ToString(); txtUsuario.Text = dtbl.Rows[0]["usu_usuario"].ToString(); txtClave.Text = dtbl.Rows[0]["usu_clave"].ToString(); ddlTipo.SelectedValue = dtbl.Rows[0]["tipu_id"].ToString(); btnGuardar.Enabled = false; btnBorrar.Enabled = true; btnActualizar.Enabled = true; }