是否可以在 Javascript 中的 Telerik RadDropDownList 中设置选定的值？
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Is it possible to set the selected value in a Telerik RadDropDownList in Javascript?
提问by user2320724
Is it possible to set the selected value/item in a Telerik RadDropDownList in Javascript?
是否可以在 Javascript 中的 Telerik RadDropDownList 中设置选定的值/项目？
I'm looking at the documentation http://www.telerik.com/help/aspnet-ajax/dropdownlist-clientsideprogramming-clientsidebasic.htmland it seems there is no documented way to do this simple and essential task.
我正在查看文档http://www.telerik.com/help/aspnet-ajax/dropdownlist-clientsideprogramming-clientsidebasic.html似乎没有记录的方法来完成这个简单而重要的任务。
Is it simply not in the documentation? Tried searching the forums as well to no avail.
它只是不在文档中吗？也试过搜索论坛也无济于事。
回答by Win
You can use select()or set_selected(true)function. Hereis the documentation.
您可以使用select()或set_selected(true)函数。这是文档。
<telerik:RadDropDownList ID="RadDropDownList1" runat="server">
<Items>
<telerik:DropDownListItem runat="server" Text="One" Value="1" />
<telerik:DropDownListItem runat="server" Text="Two" Value="2" />
<telerik:DropDownListItem runat="server" Text="Three" Value="3" />
</Items>
</telerik:RadDropDownList>
<script type="text/javascript">
function pageLoad() {
var dropdownlist = $find("<%= RadDropDownList1.ClientID %>");
var item = dropdownlist.findItemByValue("3");
item.select();
}
</script>
回答by Pierre Contri
var dropdownlist = document.getElementById('<%= RadDropDownList1.ClientID %>');
if (dropdownlist != null) {
dropdownlist .children[0].children[0].innerHTML = "3 - Low";
dropdownlist .children[0].children[0].setAttribute("class", "rddlFakeInput");
}
No other solutions worked on my project !! 3 days for the item.selected = true; it's not acceptable, so JavaScript in 20 minutes
没有其他解决方案适用于我的项目！！item.selected = true 3 天；这是不可接受的，所以 JavaScript 在 20 分钟内
