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jqgrid 动态列生成

2014-09-18 22:15 239 查看

jqgrid 动态列生成

前台代码

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="DynamicCol.aspx.cs" Inherits="Content_DynamicCol" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head runat="server">

<title></title>

<link href="/Content/smoothness/jquery-ui-1.8.17.custom.css" rel="stylesheet" type="text/css" />

<link href="/Content/Site.css" rel="stylesheet" type="text/css" />

<script src="/js/jquery.min.js" type="text/javascript"></script>

<link href="/js/ui.jqgrid.css" rel="stylesheet" type="text/css" />

<script src="/js/i18n/grid.locale-cn.js" type="text/javascript"></script>

<script src="/js/jquery.jqGrid.min.js" type="text/javascript"></script>

<script src="/js/jquery-ui-1.8.16.custom.min.js" type="text/javascript"></script>

<script type="text/javascript" src="/scripts/jquery.jBox-2.3.min.js"></script>

<script type="text/javascript" src="/scripts/jquery.jBox-zh-CN.js"></script>

<script language="javascript" type="text/javascript">

$(function() {

//首先是获取动态的列

GetDynamicCols();

$("#BtnEdit").bind("click", function() {

var rowid = $("#gridTable").jqGrid('getGridParam', 'selrow');

if (rowid != null) {

var rowData = $("#gridTable").getRowData(rowid);

alert(rowData.Device_ID);

}

else {

alert("请选择数据行");

}

}

);

}

);

function GetDynamicCols() {

$.ajax({

type: "POST",

async: false,

contentType: "application/json;utf-8",

url: "Data1.ashx?action=getcols1&orgcode=KEJI11300&ico=true&og=true",

success: function(data) {

creategrid(data);

},

beforeSend: function() {

//$.jBox.tip("正在查询数据...", 'loading');

}

});

}

function creategrid(data) {

$("#gridTable").jqGrid({

datatype: 'local',

width: 1200,

height: 465,

rowNum: 25,

rowList: [25, 30, 50],

shrinkToFit: true, //自动调整列宽

altRows: true, //隔行变色

altclass: 'altclass', //隔行变色样式

colNames: data.ColNs,

colModel: data.ColMs,

viewrecords: true,

caption: "内容列表",

hidegrid: false,

ondblClickRow: function(ID) { //行点击事件

var rowData = $("#gridTable").jqGrid("getRowData", ID);

var id = rowData.OgCode;

alert(id);

},

loadtext: "正在加载数据......"

});

gridTable.addJSONData(data);

}

function currencyFmatter(cellvalue, options, rowObject) {

if (cellvalue = "文件类型")

return "<img src='http://it.rifa.com.cn/images/new1.gif' />"

else

return "文件夹图片URL" + cellvalue

}

</script>

</head>

<body>

<form id="form1" runat="server">

<table id="gridTable"></table>

<input id="BtnEdit" type="button" value="修改" />

</form>

</body>

</html>

后台 Data1.ashx 文件内容

<%@ WebHandler Language="C#" Class="data1" %>

using System;

using System.Web;

using System.Data;

using System.Collections.Generic;

using System.Collections;

using System.Configuration;

public class data1 : IHttpHandler {

RIFATM.DB.SqlHelper sqlh = new RIFATM.DB.SqlHelper();

public void ProcessRequest (HttpContext context) {

context.Response.ContentType = "application/json";

DataTable dt = new DataTable();

DataTable dt2 = new DataTable();

DataTable resultdata = new DataTable();

string linkaddres = "";

string sql = "";

string sql2 = "";

if (context.Request.Params["action"] == "getcols1")

{

sql = "select * from Sys_home_set where orgcode='" + context.Request.Params["orgcode"].ToString() + "' and id='7' order by descid asc";

sql2 = "select sql from Sys_home where orgcode='" + context.Request.Params["orgcode"].ToString() + "' and id='7'";

}

dt = sqlh.GetTable(sql);

dt2 = sqlh.GetTable(sql2);

resultdata = sqlh.GetTable(dt2.Rows[0]["sql"].ToString());

//以下是核心部分

IList<object> rowObjects = new List<object>();

ArrayList ColNs = new ArrayList();

IList<object> ColMs = new List<object>();

ColNs.Add("");

var colm = new

{

name = "img",

index = "img",

width = 32,

sortable = false

};

ColMs.Add(colm);

ColNs.Add("");

var colmog = new

{

name = "OgCode",

index = "OgCode",

hidden = true

};

ColMs.Add(colmog);

Type homecols = ClassHelper.BuildType("homecols");

List<ClassHelper.CustPropertyInfo> cpo = new List<ClassHelper.CustPropertyInfo>();

ClassHelper.CustPropertyInfo cpi;

foreach (DataRow dr in dt.Rows)

{

ColNs.Add(dr["ColumnText"].ToString());

var colms = new

{

name = dr["ShowColumn"].ToString(),

index = dr["ShowColumn"].ToString(),

width = 100

};

if (dr["linkaddress"].ToString().Length != 0)

{

linkaddres = dr["linkaddress"].ToString();

}

cpi=new ClassHelper.CustPropertyInfo("System.String",dr["ShowColumn"].ToString());

cpo.Add(cpi);

ColMs.Add(colms);

}

///图标和业务组编码

if (context.Request.Params["ico"] == "true")

{

cpi = new ClassHelper.CustPropertyInfo("System.String", "img");

cpo.Add(cpi);

}

if (context.Request.Params["og"] == "true")

{

cpi = new ClassHelper.CustPropertyInfo("System.String", "OgCode");

cpo.Add(cpi);

homecols = ClassHelper.AddProperty(homecols, cpo);

}

///

homecols=ClassHelper.AddProperty(homecols,cpo);

IList<object> oo = new List<object> { ClassHelper.CreateInstance(homecols) };

foreach (DataRow dr in resultdata.Rows)

{

object o = ClassHelper.CreateInstance(homecols);

foreach (ClassHelper.CustPropertyInfo _cpo in cpo)

{

string colname = _cpo.FieldName;

if (string.Compare(colname,"img") == 0)

{

ClassHelper.SetPropertyValue(o, "img", "<img src='http://it.rifa.com.cn/images/new1.gif' />");

}

if (string.Compare(colname, "OgCode") == 0)

{

ClassHelper.SetPropertyValue(o, "OgCode", "RFHG16000");

}

if ((string.Compare(colname, "img") != 0) && (string.Compare(colname, "OgCode") != 0))

{

ClassHelper.SetPropertyValue(o, colname, dr[_cpo.FieldName.Trim()].ToString());

}

}

oo.Add(o);

}

oo.RemoveAt(0); //不知道为什么生成的第一行数据是NULL，删除空行数据

var resultObj = new

{

ColNs = ColNs, // 总页数

ColMs = ColMs,

rows = oo

};

context.Response.Write(Newtonsoft.Json.JsonConvert.SerializeObject(resultObj));

}

public bool IsReusable {

get {

return false;

}

}

}
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