Javascript 剑道刷新（DropDownList.refresh（））不工作错误未定义
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Kendo Refresh (DropDownList.refresh()) not working ERROR Not define
提问by cwishva
Im trying to refresh the Drop Down List after another DropDownList is Change But the Refresh() method is Undefined Error Is Promoting.There For I Tried the Read the DataSource again and it shows it loading but the data is still the same.Help to Solve this Issue please.
我试图在另一个 DropDownList 更改后刷新下拉列表，但 Refresh() 方法是未定义的错误正在提升。因为我再次尝试读取数据源，它显示它正在加载但数据仍然相同。帮助解决这个问题请。
Code:
代码：
$("#DropDownList1").change(function () {
custCode = $("#DropDownList1").val();
$("#titles").data("kendoDropDownList").dataSource.read(); //shows list Loading But Same Data Is present .
$("#titles").data("kendoDropDownList").refresh(); //NOT Working
});
回答by Abhishek
1- Try adding cache: falseto disable the cache in Kendo DropDownList's datasource read property:
1- 尝试cache: false在 Kendo DropDownList 的数据源读取属性中添加禁用缓存：
read: {
url: <<"url">>,
cache: false
}
2- Then call read(),
2-然后打电话read()，
$("#ddl").data("kendoDropDownList").dataSource.read();
It worked for me :)
它对我有用:)
回答by user1291282
For me just this line did the job:
对我来说，这条线完成了这项工作：
$("#myDropDownList").data("kendoDropDownList").dataSource.read();
$("#myDropDownList").data("kendoDropDownList").dataSource.read();
回答by Houdini Sutherland
You might find passing parameters to the ".data()" of the dataSource useful.
您可能会发现将参数传递给 dataSource 的“.data()”很有用。
Example:
例子：
var myDataSource={bookId: 10, Name: "Kendo"}
$("#titles").data("kendoDropDownList").dataSource.data(myDataSource);
However, you could also try the cascadingFromattribute of the DropDownList when you want to update one DropDownList based on the selection of another DropDownList
但是，当您想根据另一个 DropDownList 的选择更新一个 DropDownList 时，您也可以尝试DropDownList的cascadingFrom属性
//Houdini
//胡迪尼
回答by John Dover
on your read url add '?myDate=' + new Date(). This will refresh the data. Without it (unless you have meta tags to prevent caching) it will give you that data it has already read.
在您阅读的网址上添加 '?myDate=' + new Date()。这将刷新数据。没有它（除非你有元标记来防止缓存）它会给你它已经读取的数据。
回答by Juan Camilo Zapata
In my case I commented the line
就我而言，我评论了这一行
//cascadeFrom: "dropdown1_id"
on the second kendo dropdown and it worked, for some reason it was messing with the data source updates.
在第二个 kendo 下拉菜单中它起作用了，由于某种原因，它弄乱了数据源更新。
