33jqGrid 行编辑- 全列编辑

当我们保存数据到服务器之后，我们可以对数据应用完全的控制权。众所周知，发送的数据是成功的。但是同样的我们将数据保存到数据库不一定会成功。为了控制这种情况，我们可以在数据保存到服务器的时候设置上一个回调函数。这个回调函数接收从服务器上返回的数据。根据这个数据，函数可以返回true或false。当返回true的时候意味着保存是成功的。当返回false的时候，保存是失败的。另外，保存数据中断，服务器不返回任何数据。

HTML代码举例

  
    jqGrid 实例
  
  
    ···代码省略···
    
    

    
    
    
    ···代码省略···
  

			

javascript代码举例

$(function(){
  pageInit();
});
function pageInit(){
  jQuery("#rowed4").jqGrid(
      {
        url : ctx+'/JSONData',
        datatype : "json",
        colNames : [ 'Inv No', 'Date', 'Client', 'Amount', 'Tax','Total', 'Notes' ],
        colModel : [ 
                     {name : 'id',index : 'id',width : 55}, 
                     {name : 'invdate',index : 'invdate',width : 90,editable : true}, 
                     {name : 'name',index : 'name',width : 100,editable : true}, 
                     {name : 'amount',index : 'amount',width : 80,align : "right",editable : true}, 
                     {name : 'tax',index : 'tax',width : 80,align : "right",editable : true}, 
                     {name : 'total',index : 'total',width : 80,align : "right",editable : true}, 
                     {name : 'note',index : 'note',width : 150,sortable : false,editable : true} 
                   ],
        rowNum : 10,
        rowList : [ 10, 20, 30 ],
        pager : '#prowed4',
        sortname : 'id',
        viewrecords : true,
        sortorder : "desc",
        editurl : ctx+"/RowEditing",
        caption : "Full control"
      });
  jQuery("#ed4").click(function() {
    jQuery("#rowed4").jqGrid('editRow', "13");
    this.disabled = 'true';
    jQuery("#sved4").attr("disabled", false);
  });
  jQuery("#sved4").click(function() {
    jQuery("#rowed4").jqGrid('saveRow', "13", checksave);
    jQuery("#sved4").attr("disabled", true);
    jQuery("#ed4").attr("disabled", false);
  });
  function checksave(result) {
    if (result.responseText == "") {
      alert("Update is missing!");
      return false;
    }
    return true;
  }
}

java servlet代码举例

public class JSONData extends HttpServlet {
  private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public JSONData() {
        super();
        // TODO Auto-generated constructor stub
    }

  @Override
  protected void doGet(HttpServletRequest req, HttpServletResponse resp)
      throws ServletException, IOException {
    // TODO Auto-generated method stub
    doPost(req,resp);
  }

  /**
   * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
   */
  protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    // TODO Auto-generated method stub
    String jsondata = "{\"page\":\"1\"," +
        "      \"total\":2," +
        "      \"records\":\"13\"," +
        "      \"rows\":" +
        "          [" +
        "            {" +
        "              \"id\":\"13\"," +
        "              \"cell\":" +
        "                  [\"13\",\"2007-10-06\",\"Client 3\",\"1000.00\",\"0.00\",\"1000.00\",null]" +
        "            }," +
        "            {" +
        "              \"id\":\"12\"," +
        "              \"cell\":" +
        "                  [\"12\",\"2007-10-06\",\"Client 2\",\"700.00\",\"140.00\",\"840.00\",null]" +
        "            }," +
        "            {" +
        "              \"id\":\"11\"," +
        "              \"cell\":" +
        "                  [\"11\",\"2007-10-06\",\"Client 1\",\"600.00\",\"120.00\",\"720.00\",null]" +
        "            }," +
        "            {" +
        "              \"id\":\"10\"," +
        "              \"cell\":" +
        "                  [\"10\",\"2007-10-06\",\"Client 2\",\"100.00\",\"20.00\",\"120.00\",null]" +
        "            }," +
        "            {" +
        "              \"id\":\"9\"," +
        "              \"cell\":" +
        "                  [\"9\",\"2007-10-06\",\"Client 1\",\"200.00\",\"40.00\",\"240.00\",null]" +
        "            }," +
        "            {" +
        "              \"id\":\"8\"," +
        "              \"cell\":" +
        "                  [\"8\",\"2007-10-06\",\"Client 3\",\"200.00\",\"0.00\",\"200.00\",null]" +
        "            }," +
        "            {" +
        "              \"id\":\"7\"," +
        "              \"cell\":" +
        "                  [\"7\",\"2007-10-05\",\"Client 2\",\"120.00\",\"12.00\",\"134.00\",null]" +
        "            }," +
        "            {" +
        "              \"id\":\"6\"," +
        "              \"cell\":" +
        "                  [\"6\",\"2007-10-05\",\"Client 1\",\"50.00\",\"10.00\",\"60.00\",\"\"]" +
        "            }," +
        "            {" +
        "              \"id\":\"5\"," +
        "              \"cell\":" +
        "                  [\"5\",\"2007-10-05\",\"Client 3\",\"100.00\",\"0.00\",\"100.00\",\"no tax at all\"]" +
        "            }," +
        "            {" +
        "              \"id\":\"4\"," +
        "              \"cell\":" +
        "                  [\"4\",\"2007-10-04\",\"Client 3\",\"150.00\",\"0.00\",\"150.00\",\"no tax\"]" +
        "            }" +
        "          ]," +
        "      \"userdata\":{\"amount\":3220,\"tax\":342,\"total\":3564,\"name\":\"Totals:\"}" +
        "    }";
    response.getWriter().write(jsondata);
  }

}