我正在使用以下Javascript函数。仅当值为数字时才有效。我的意思是，如果它是数字，则仅返回值。例如：
var ldInstID = getParameterByName("ID")
如果ID是一个数字，那么它将起作用并将其值分配给变量，但是如果ID是一个字符串，则它将不起作用。请帮忙使它也适用于字符串。
我在SharePoint列表编辑页上使用它，其中ID是列表列值。我想捕获另一个列城市，并将其作为href查询字符串以及ID传递。
在所附的图像中，您可以看到ldInstID为空白
<!--
Name: dispParent.js
-->
<script type="text/javascript" src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-1.7.2.min.js"></script>
<script type="text/javascript">
jQuery(document).ready(function($) {
//get the ID for the Issue from the Query String
// var issueID = getParameterByName("ID");
var ldInstID = getParameterByName("LeadInsitution");
//find the element with the "Add new item" link.
//note that if you have more than one list on your page,this just finds the first one
var anchorElement = $("a[title='Add a new item to this list or library.']");
//modify the "Add new item" link to call the "NewItem2" function and pass in the Issue ID.
//Be sure to put the path to your site below. You can use relative URL to the web application or the FQDN
// $(anchorElement).attr("href","javascript:NewItem2(event,'URL/Lists/Time/NewForm.aspx?IssueID=" + issueID + "');");
// $(anchorElement).attr("href",'URL/NewForm.aspx?IssueID=" + issueID + "&LdInst" + LdInst + "');");
$(anchorElement).attr("href",'URL/NewForm.aspx?LdInstID=" + ldInstID + "');");
//remove the "onclick" attribute from the anchor element as we aren't using it anymore
$(anchorElement).removeAttr("onclick");
});
// no,I didn't write this function from scratch,I found it at
// http://stackoverflow.com/questions/901115/get-query-string-values-in-javascript
// http://www.sharepointhillbilly.com/Lists/Posts/Post.aspx?ID=26
function getParameterByName(name)
{
name = name.replace(/[\[]/,"\\\[").replace(/[\]]/,"\\\]");
var regexS = "[\\?&]" + name + "=([^&#]*)";
var regex = new RegExp(regexS);
var results = regex.exec(window.location.href);
if(results == null)
return "";
else
return decodeURIComponent(results[1].replace(/\+/g," "));
}
</script>
