javascript 如何刷新 KendoUI DropDownList？
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How to refresh a KendoUI DropDownList?
提问by Rodney
I have a kendo ui grid that i need to update. So I have the following Mark-up:
我有一个需要更新的剑道 ui 网格。所以我有以下标记：
I call the following script to populate the dropdownlist:
我调用以下脚本来填充下拉列表：
// An Ajax call to load the selected hover into the controls
$.ajax({
type: 'POST',
url: '/Reports/HoverManager/GetHoversForDropDown',
data: { sectionId: sectionId },
error: function(response){
$('.hover-manager .error').html(response.responseText).fadeIn(500).delay(5000).fadeOut(500);
},
success: function(response){
$('.hover-manager #hoverSelect').kendoDropDownList({
animation: false,
dataTextField: "Name",
dataValueField: "ID",
dataSource: response.hovers,
change: hoverDownDownChange,
}).data('kendoDropDownList').value(hoverId);
}
});
Once the page loads. I call the same script to refresh the Drop Down List. I've noticed in the source that the data source contains the new data but the drop down list is hidden.
一旦页面加载。我调用相同的脚本来刷新下拉列表。我在源中注意到数据源包含新数据，但下拉列表被隐藏。
What is the correct way to update the Kendo Drop Down List?
更新剑道下拉列表的正确方法是什么？
回答by Petur Subev
You need to initialize the kendo DropDownList only once and each time you want to refresh the data you should use the dataSource.data()method.
您只需要初始化一次剑道 DropDownList 并且每次要刷新数据时都应该使用dataSource.data()方法。
Something like :
就像是 ：
$('#hoverSelect').kendoDropDownList({
animation: false,
dataTextField: "Name",
dataValueField: "ID",
change: hoverDownDownChange,
}).data('kendoDropDownList').value(hoverId);
$.ajax({
type: 'POST',
url: '/Reports/HoverManager/GetHoversForDropDown',
data: { sectionId: sectionId },
error: function(response){
$('.hover-manager .error').html(response.responseText).fadeIn(500).delay(5000).fadeOut(500);
}, success: function(response){
$('#hoverSelect').data('kendoDropDownList').dataSource.data(response.hovers);
}
});
