jQuery 自动完成功能 - 不确定如何获取字段中的当前文本

发布于 2024-12-10 12:52:04 字数 996 浏览 0 评论 0原文

目前，我的自动完成 jQuery 代码中有类似这样的内容：

$("input#autocomplete").autocomplete({
    source: "/problems/get_categories_ajax.php?category="+$(this).data("autocomplete", ui.item.autocomplete),
    delay: 0,
    minLength: 0,
    autoFocus: true,
    select: function (event, ui) {
            $("#user_id").val(ui.item.id);
            $(this).data("user_id",ui.item.id);//Store arbitrary data associated with the specified element
            $(this).data("username",ui.item.value);//Store arbitrary data associated with the specified element

    },
        selectFirst: true,
        autoFill: true,
        mustMatch: true
})
.bind("blur",function() {
    var autocomplete = $(this).data("autocomplete");

    $(this).val(autocomplete);
    $("#autocomplete").val(autocomplete);
});

但在尝试在此处构造 AJAX 调用时，出现无法使用 ui 变量的错误：source: "/problems/get_categories_ajax.php?category="+$ (this).data("autocomplete", ui.item.autocomplete),

如何从表单中获取值并传递到那里？

谢谢！

原文

I currently have something like this in my autocomplete jQuery code:

$("input#autocomplete").autocomplete({
    source: "/problems/get_categories_ajax.php?category="+$(this).data("autocomplete", ui.item.autocomplete),
    delay: 0,
    minLength: 0,
    autoFocus: true,
    select: function (event, ui) {
            $("#user_id").val(ui.item.id);
            $(this).data("user_id",ui.item.id);//Store arbitrary data associated with the specified element
            $(this).data("username",ui.item.value);//Store arbitrary data associated with the specified element

    },
        selectFirst: true,
        autoFill: true,
        mustMatch: true
})
.bind("blur",function() {
    var autocomplete = $(this).data("autocomplete");

    $(this).val(autocomplete);
    $("#autocomplete").val(autocomplete);
});

but I get the error that I can't use the ui variable when trying to construct the AJAX call here: source: "/problems/get_categories_ajax.php?category="+$(this).data("autocomplete", ui.item.autocomplete),

How can I get the value from the form to pass in there?

Thanks!

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〗斷ホ乔殘χμё〖 2024-12-17 12:52:04

您不需要手动将其添加为参数。它将自动附加为 term。

如果您需要指定不同的参数名称，那么您应该声明一个自定义 source 函数：（

$( "#city" ).autocomplete({
  source: function( request, response ) {
    $.ajax({
      url: "http://gd.geobytes.com/AutoCompleteCity",
      dataType: "jsonp",
      data: {
        q: request.term
      },
      success: function( data ) {
        response( data );
      }
    });
  }
});

来源：http://jqueryui.com/autocomplete/#remote-jsonp)

You don't need to add it manually as a parameter. It would be automatically appended as term.

If you need to specify a different parameter name, then you should declare a custom source function:

$( "#city" ).autocomplete({
  source: function( request, response ) {
    $.ajax({
      url: "http://gd.geobytes.com/AutoCompleteCity",
      dataType: "jsonp",
      data: {
        q: request.term
      },
      success: function( data ) {
        response( data );
      }
    });
  }
});

(Source: http://jqueryui.com/autocomplete/#remote-jsonp)

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