extjs2.2记3

对于多表的保存:

1.下载Newtonsoft.Json

2.从js到cs(生成list)
<1>从grid中取数
if (contractItemForm.getForm().isValid()) {
   if (contractItemForm.getForm().isValid()) {
    //构造提交数据集
       //品牌构造-----
       var lstbrand=new Array();
       var len=ContractNewBrandInfo_itemStore.getCount();
      
       for(i=0;i<len;i++)
       {
           var p=new contractbrandfields_reader(
                    {
                        sn:ContractNewBrandInfo_itemStore.getAt(i).get('sn'),
                        brandid:ContractNewBrandInfo_itemStore.getAt(i).get('brandid'),
                        brandname:ContractNewBrandInfo_itemStore.getAt(i).get('brandname'),
                        salerate:ContractNewBrandInfo_itemStore.getAt(i).get('salerate'),
                        memo:ContractNewBrandInfo_itemStore.getAt(i).get('memo')
                                         
                    });
                   lstbrand.push(p);
       }
<2>生成参数
  params:{type:"sumbit",
  oper:dictOper,
  Lx:"NewContract",
  //------------添加参数在这里
  databrand:Ext.util.JSON.encode(lstbrand),//品牌构造
  
                               
  },
<3>生成以下数据(两行)

databrand="[{\"id\":1014,\"data\":{\"sn\":1,\"brandid\":\"0000000005\",\"brandname\":\"李宁牌\",\"salerate\":0.2}},
{\"id\":1015,\"data\":{\"sn\":2,\"brandid\":\"0000000004\",\"brandname\":\"耐克\",\"salerate\":0.3}}]"
<4>后台处理
using Newtonsoft.Json;

     string strDatabrand = Request["databrand"].Trim();

     JavaScriptArray jsa = (JavaScriptArray)JavaScriptConvert.DeserializeObject(strDatabrand);
            IList<prvcttbrand> li = new List<prvcttbrand>();
            for (int i = 0; i < jsa.Count; i++)
            {

                JavaScriptObject jso = (JavaScriptObject)jsa[i];
                JavaScriptObject jsodata = (JavaScriptObject)jso["data"];

                prvcttbrand tmprec = new prvcttbrand();
                tmprec.bllno = strBlno;
                tmprec.sn = sjondata["sn"].Tostring();//值为"1"
                ...

  li.Add(tmprec);
     }