ECMAScript Query实例

下面是Query的一个实例 ，用通过查询Title中包含要查询的值，下面是页面的代码

<%@ Assembly Name="ClientOMUIActions, Version=1.0.0.0, Culture=neutral, PublicKeyToken=4efe8d1641f2f2df" %>
<%@ Assembly Name="Microsoft.Web.CommandUI, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %> 
<%@ Register Tagprefix="SharePoint" Namespace="Microsoft.SharePoint.WebControls" Assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %> 
<%@ Register Tagprefix="Utilities" Namespace="Microsoft.SharePoint.Utilities" Assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Register Tagprefix="asp" Namespace="System.Web.UI" Assembly="System.Web.Extensions, Version=3.5.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" %>
<%@ Import Namespace="Microsoft.SharePoint" %> 
<%@ Register Tagprefix="WebPartPages" Namespace="Microsoft.SharePoint.WebPartPages" Assembly="Microsoft.SharePoint, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71e9bce111e9429c" %>
<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="ClientObjAddItemUserControl.ascx.cs" Inherits="ClientOMUIActions.ClientObjAddItem.ClientObjAddItemUserControl" %>
 <sharepoint:ScriptLink ID="ScriptLink1" Name="SP.js" runat="server" OnDemand="true" Localizable="False"></sharepoint:ScriptLink>
<style>
    body
    {
         font-family:Verdana;
         font-size:12px;
    }
.btn1
{
    font-family: "Verdana";
    font-size: 9pt;
    color: #000000;
    border-color: #666666 #666666 #666666 #666666;
    border-style: solid;
    border-top- 1px;
    border-right- 1px;
    border-bottom- 1px;
    border-left- 1px;
     60px;
    cursor: hand;
}
#list
{
   margin-top:20px;
}
#list table
{
   100%
}
#list table tr th
{
   background-color:#6660FF;
   text-align:certer;
   font-size:12px;
   line-height:24px;
   padding:1px 8px;
   color:#ffffff;
   border:1px solid #808080;
}
#list table tr td
{
      border:1px solid #E7E7E7; 
      line-height:20px;
      height:20px;
      padding:1px 8px;
      background-color:#f5f5f5;
      font-size:12px;
}
</style>
<script type="text/javascript">

    function runCode() {

        var clientContext = new SP.ClientContext();
        var targetlist = clientContext.get_web().get_lists().getByTitle('testEcaml');
        var itemCreateInfo = new SP.ListItemCreationInformation();
        this.newItem = targetlist.addItem(itemCreateInfo);
        newItem.set_item('Title', 'test');
        newItem.update();
        clientContext.load(newItem);
        clientContext.executeQueryAsync(Function.createDelegate(this, this.onQuerySucceeded),
     Function.createDelegate(this, this.onQueryFailed));

    }

    function onQuerySucceeded() {

        alert('Announcement created!\n\nId: ' + newItem.get_id() + '\nTitle: ' + newItem.get_item('Title'));
    }

    function onQueryFailed(sender, args) {

        alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
    }


    function GetItemByID() {
        var clientContext = new SP.ClientContext();
        var olist = clientContext.get_web().get_lists().getByTitle('testEcaml');
        this.olistItem = olist.getItemById(1);
        clientContext.load(olistItem);
        clientContext.executeQueryAsync(Function.createDelegate(this, this.OnSucceed),
        Function.createDelegate(this, this.onQueryFailed));
    }
    function OnSucceed() {

        alert('testEcaml created!\n\nId: ' + olistItem.get_id() + '\nTitle: ' + olistItem.get_item('Title'));
    }

    function Search() {

        var searchValue = document.getElementById("txtSearch").value;
        if (searchValue == "") return;
        var clientContext = new SP.ClientContext();
        var olist = clientContext.get_web().get_lists().getByTitle('testEcaml');
        var camlQuery = new SP.CamlQuery();
        var sCamlString = "<View><ViewFields><FieldRef Name='Title'/><FieldRef Name='Author'/><FieldRef Name='Created'/></ViewFields><Query><Where><Contains><FieldRef Name='Title'/><Value Type='Text'>" + searchValue + "</Value></Contains></Where></Query></View>";
        //document.getElementById("EM").innerHTML = sCamlString;
        camlQuery.set_viewXml(sCamlString);
        this.items = olist.getItems(camlQuery);
        clientContext.load(items);

        clientContext.executeQueryAsync(Function.createDelegate(this, this.OnQueryS),
         Function.createDelegate(this, this.onQueryFailed));

        // alert("Hello");
    }
    function OnQueryS(sender, args) {

        var sTable = "<table><tr><th>Title</th><th>Author</th><th>Created</th></tr>";

        var listItemEnumerator = items.getEnumerator();
        while (listItemEnumerator.moveNext()) {
            sTable + "<tr>";

            var listitem = listItemEnumerator.get_current();

            sTable += "<td>" + listitem.get_item('Title') + "</td>";

            sTable += "<td>" + listitem.get_item('Author')["$b_1"] + "</td>";
            // var obj=listitem.get_item('Author');
            //  for(var o in obj)
            //  {
            //   alert("Key:"+o.toString()+",Value:"+obj[o]);
            //}
            // alert(Object.prototype.toString.apply(listitem.get_item('Author')));
            var date = new Date(listitem.get_item('Created'));
            sTable += "<td>" + date.toLocaleString() + "</td>";
            sTable += "</tr>";

        }
        sTable += "</table>";
        document.getElementById("list").innerHTML = sTable;

        //alert('testEcaml created!\n\nId: ' + olistItem.get_id() + '\nTitle: ' + olistItem.get_item('Title'));
    }
    
</script>
<div id="EM"></div>
    <div><input type="text" id="txtSearch" style=" 250px;" /> &nbsp; <input type="button"  value="Search" id="btnSearch" onclick="Search();" class="btn1"/></div>
    <input id="Button1" type="button" value="Run Code" onclick="runCode()"  style=" display:none"/>
    <input id="btnGetItem" type="button" value=" Get Item By ID" onclick="GetItemByID()" style=" display:none"/>
    <div id="list">
    </div>

效果图：

注意：

1. 值得注意的一点是，取Author值，是怎么样取的通过Obj["$b_1"],这样取对象取出来的，可能是返回的是Json数据，如果想看其他数据，需要遍历。

2. 现在暂时才知道用InnerFieldName来得到值 ，用DisplayName暂时不清楚。

备注：

下面是Author字段遍历后的结果

Key:customWriteToXml,Value:function(){ULSnd3:;return false}
Key:writeToXml,Value:function(b,a){ULSdih:;if(!b)throw Error.argumentNull("writer");if(!a)throw Error.argumentNull("serializationContext");var c=["LookupValue","LookupId"];SP.DataConvert.writePropertiesToXml(b,this,c,a)}
Key:get_typeId,Value:function(){ULSdih:;return "{c956ab54-16bd-4c18-89d2-996f57282a6f}"}
Key:set_lookupId,Value:function(a){ULSdih:;this.$L_1=a;return a}
Key:get_lookupId,Value:function(){ULSdih:;return this.$L_1}
Key:get_lookupValue,Value:function(){ULSdih:;return this.$b_1}
Key:$4D,Value:function(a){ULSdih:;this.$b_1=a}
Key:customFromJson,Value:function(){ULSnd3:;return false}
Key:fromJson,Value:function(a){ULSnd3:;this.initPropertiesFromJson(a)}
Key:initPropertiesFromJson,Value:function(b){ULSdih:;var a;a=b.LookupValue;if(!SP.ScriptUtility.isUndefined(a)){this.$b_1=a;delete b.LookupValue}a=b.LookupId;if(!SP.ScriptUtility.isUndefined(a)){this.$L_1=a;delete b.LookupId}}
Key:$b_1,Value:系统帐户
Key:$L_1,Value:1073741823