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Google Maps API v3 UNIQUE标记JS(Google Maps API v3 UNIQUE marker JS)

 我试图在一个简单的JavaScript Web API上有一个独特的标记，没有jQuery。  
 每当我点击地图时，我首先尝试删除上一个标记  
marker.setMap(null);
 
 在创建新的之前，它会阻止新的，屏幕上没有任何内容。  
 我可以使用按钮或其他事件轻松删除标记，但有没有办法自动执行，并且在地图上只有一个标记（可拖动：true可以移动它，也许dblClick可以删除它）？  
 标记创建由平常触发  
google.maps.event.addListener(map, "click", function(event) {...

var marker = new google.maps.Marker({...
 
 该界面用于定义单个位置，因此我不希望屏幕上有多个标记; 然后将坐标保存在数据库中。 

I'm trying to have a unique marker on a simple javascript web API, no jQuery. 
I first tried to delete the previous marker every time I click on the map, with 
marker.setMap(null);
 
just before creating the new one, but it blocks the new one, nothing appears on the screen. 
I can easily delete the markers with a button or other event, but is there a way to do it automatically, and have only one marker on the map (with draggable: true to move it, maybe dblClick to delete it) ? 
Marker creation triggered by usual 
google.maps.event.addListener(map, "click", function(event) {...

var marker = new google.maps.Marker({...
 
The interface is used to define a single location so I don't want more than one marker on the screen; coordinates are then saved in a database.

原文：https://stackoverflow.com/questions/28261525

更新时间：2022-05-07 10:05

最满意答案

 DeploymentServerType参数是可选的（ MSDN ），如果指定，它会限制您的解决方案部署到的服务器场中的哪些服务器。 如果您同时拥有App Server和Web前端组件，则只需将参数保留，以便将其部署到所有服务器。  
 请参阅以下博客文章中的“解决方案元素”部分：  
 http://blogit.create.pt/blogs/andrevala/archive/2008/02/17/sharepoint-2007-deployment_3a00_-creating-solutions.aspx  
 
  “DeploymentServerType - 指示部署此解决方案的目标服务器类型。可以是ApplicationServer或WebFrontEnd。此属性是可选的（如果未使用，则将解决方案部署到服务器场中的所有服务器）”  
 
 编辑：从逻辑上讲，如果您的解决方案只包含WFE内容（Web部件，页面，图像等..），那么您可以使用WebFrontEnd参数。 如果它包含AppServer内容（计时器作业或部署到管理中心的任何内容 - 例如，额外的管理页面），则使用ApplicationServer参数。 通常我发现大多数解决方案都将部署到WebFrontEnd。 

The DeploymentServerType paramater is optional (MSDN), if specified it restricts which servers on the farm your solution gets deployed to. If you have both App Server & Web Frontend components then just leave the parameter out so it gets deployed to ALL servers. 
See the section "Solution Element" on the following blog article: 
http://blogit.create.pt/blogs/andrevala/archive/2008/02/17/sharepoint-2007-deployment_3a00_-creating-solutions.aspx 
 
 "DeploymentServerType - Indicates which type of server is the target for the deployment of this solution. Can be ApplicationServer or WebFrontEnd. This attribute is optional (if not used, the solution is deployed to all the servers in the farm)" 
 
EDIT: Thus logically if your solution just contains WFE content (Web parts, Pages, Images etc..) then you can use the WebFrontEnd parameter. If it contains AppServer content (Timer Jobs or anything deployed to Central Administration - eg. an extra administration page) then use the ApplicationServer parameter. Generally I find most solutions will be deployed to the WebFrontEnd.

Google Maps API v3 UNIQUE标记JS(Google Maps API v3 UNIQUE marker JS)

最满意答案

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