Office365学习笔记—列表查询，删除条目，更新条目。

1，基于Query语句的列表查询。

function retrieveListItems(itemId) {
    var siteUrl=_spPageContextInfo.webServerRelativeUrl;
    var clientContext = new SP.ClientContext(siteUrl);
    //列表名一定要用中文
    var oList = clientContext.get_web().get_lists().getByTitle('项目信息');
        
    var camlQuery = new SP.CamlQuery();
    camlQuery.set_viewXml(
        '<View><Query><Where><Eq><FieldRef Name=\'ID\'/>' + 
        '<Value Type=\'Number\'>'+itemId+'</Value></Eq></Where></Query>' + 
        '<RowLimit>10</RowLimit></View>'
    );
    this.collListItem = oList.getItems(camlQuery);
        
    clientContext.load(collListItem);
    clientContext.executeQueryAsync(
        Function.createDelegate(this, this.onQuerySucceeded), 
        Function.createDelegate(this, this.onQueryFailed)
    ); 
}
function onQuerySucceeded(sender, args) {
    var listItemInfo = '';
    var listItemEnumerator = collListItem.getEnumerator();
        
    while (listItemEnumerator.moveNext()) {
        var oListItem = listItemEnumerator.get_current();
        listItemInfo = oListItem.get_item('Title');
        alert(listItemInfo);
    }
	
}

function onQueryFailed(sender, args) {
    alert('Request failed. ' + args.get_message() + 
        '\n' + args.get_stackTrace());
}

camlQuery.set_viewXml(
          '<View><Query>'+
          '<Where>'+
           '<And>'+
           '<Eq>'+
           '<FieldRef Name=\'Project\' LookupId=\'TRUE\'/><Value Type=\'Lookup\'>'+projectId+'</Value>' + 
           '</Eq>'+
           '<Eq>'+
           '<FieldRef Name=\'AssignedTo\'/><Value Type=\'User\'>'+userName+'</Value>' + 
           '</Eq>'+
           '</And>'+
          '</Where></Query>' + 
          '<RowLimit>10</RowLimit></View>'
      );

 2，基于ItemId的列表查询

function retrieveListItems(itemId) {
    var siteUrl=_spPageContextInfo.webServerRelativeUrl;
    var clientContext = new SP.ClientContext(siteUrl);
    var oList = clientContext.get_web().get_lists().getByTitle('项目工作项');
    this.oListItem = oList.getItemById(itemId);  	        
    clientContext.load(this.oListItem);
    clientContext.executeQueryAsync(
        Function.createDelegate(this, this.onQuerySucceeded), 
        Function.createDelegate(this, this.onQueryFailed)
    ); 
}
function onQuerySucceeded(sender, args) {
     alert(this.oListItem.get_item('ID'));	
}

function onQueryFailed(sender, args) {
    alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
}        

 3.根据Id删除条目

function deleteListItem(itemId) {
		var siteUrl=_spPageContextInfo.webServerRelativeUrl;
	    var clientContext = new SP.ClientContext(siteUrl);
	    var oList = clientContext.get_web().get_lists().getByTitle('项目工作项');
	    this.oListItem = oList.getItemById(itemId);
	    oListItem.deleteObject();
	
	    clientContext.executeQueryAsync(
	        Function.createDelegate(this, this.onQuerySucceeded), 
	        Function.createDelegate(this, this.onQueryFailed)
	    );
	}

	function onQuerySucceeded() {
	    alert('删除成功');
	    //SP.UI.ModalDialog.commonModalDialogClose(0);
	}

	function onQueryFailed(sender, args) {
	    alert('Request failed. ' + args.get_message() + 
	        '\n' + args.get_stackTrace());
	}

 4.根据Id更新条目

function updateListItem(itemId,newVersion) {
    var siteUrl=_spPageContextInfo.webServerRelativeUrl;
    var clientContext = new SP.ClientContext(siteUrl);
    var oList = clientContext.get_web().get_lists().getByTitle('项目信息');
    this.oListItem = oList.getItemById(itemId);
    oListItem.set_item('FullVersion',newVersion); 
    oListItem.update();
    clientContext.executeQueryAsync(Function.createDelegate(this, this.onUpdateSucceeded), Function.createDelegate(this, this.onUpdateFailed));
    }
    function onUpdateSucceeded() {
    alert('更新成功！');
            
            
    }
   function onUpdateFailed(sender, args) {
    alert('Request failed. ' + args.get_message() + '\n' + args.get_stackTrace());
    }