JavaScript会在SharePoint列中填充下拉选项,我需要添加“请选择”或空白(不会为NOT Null传递)。
我尝试将新项目添加到SharePoint列表中并附加到JavaScript,但是都没有给出我想要的结果。
function getReasons(ddlReason)
{
$.ajax({
url: _spPageContextInfo.webAbsoluteUrl + "/_api/web/lists/getbytitle('Reason for Rejection')/Items?$orderby=Title",
type: "GET",
async: false,
headers: {"accept": "application/json;odata=verbose"},
success: function (data) {
if (data != undefined && data.d != undefined && data.d.results != undefined && data.d.results.length > 0) {
/////////////
$.each(data.d.results, function( index, value )
{
var option = document.createElement("option");
option.text = value.Title;
option.value = value.Id;
ddlReason.appendChild(option);
});
}
},
error: function (xhr) {
alert(xhr.status + ': ' + xhr.statusText);
}
});
}=
我正在从SharePoint获取选项... “图像不良” “编码”
我想在选项顶部添加... “请选择”或空白
答案 0 :(得分:0)
在这种情况下,您可以仅在.each循环之前调用.appendChild
var option = document.createElement("option");
option.text = "Please Select";
option.value = "-1";
ddlReason.appendChild(option);
$.each(data.d.results, function( index, value )
{
var option = document.createElement("option");
option.text = value.Title;
option.value = value.Id;
ddlReason.appendChild(option);
});