带前缀的 jquery 选择器

发布于 2024-11-15 23:55:18 字数 4029 浏览 3 评论 0原文

这是我的 HTML 代码:

<div id="editorRows">
  <div class="editorRow">
     <input type="hidden" value="01c4ed6d-1234-4951-b048-d86208636479" autocomplete="off" name="comds.index">
     Grupa:
     <select id="comds_01c4ed6d-1234-4951-b048-d86208636479__Grupa" name="comds[01c4ed6d-1234-4951-b048-d86208636479].Grupa">
     Produsul:
     <select id="comds_01c4ed6d-1234-4951-b048-d86208636479__Produs" name="comds[01c4ed6d-1234-4951-b048-d86208636479].Produs">
     Cantitate:
     <input id="comds_01c4ed6d-1234-4951-b048-d86208636479__Cantitate" type="text" value="0" name="comds[01c4ed6d-1234-4951-b048-d86208636479].Cantitate" data-val-required="The Cantitate field is required." data-val-number="The field Cantitate must be a number." data-val="true">
      Pret:
      <input id="comds_01c4ed6d-1234-4951-b048-d86208636479__Pret" type="text" value="17.23" size="4" name="comds[01c4ed6d-1234-4951-b048-d86208636479].Pret" data-val-required="The Pret field is required." data-val-number="The field Pret must be a number." data-val="true">
      TVA:
      <input id="comds_01c4ed6d-1234-4951-b048-d86208636479__TVA" type="text" value="0.24" name="comds[01c4ed6d-1234-4951-b048-d86208636479].TVA" data-val-required="The TVA field is required." data-val-number="The field TVA must be a number." data-val="true">
      Total:
      <input id="comds_01c4ed6d-1234-4951-b048-d86208636479__Total" type="text" value="0" name="comds[01c4ed6d-1234-4951-b048-d86208636479].Total" data-val-required="The Total field is required." data-val-number="The field Total must be a number." data-val="true">
      <a class="deleteRow" href="#">Sterge</a>
    </div>

    <div class="editorRow">
        <input type="hidden" value="97b4ac65-73f8-4339-a707-bad53763fb2e" autocomplete="off" name="comds.index">
        Grupa:
        <select id="comds_97b4ac65-73f8-4339-a707-bad53763fb2e__Grupa" name="comds[97b4ac65-73f8-4339-a707-bad53763fb2e].Grupa">
        Produsul:
        <select id="comds_97b4ac65-73f8-4339-a707-bad53763fb2e__Produs" name="comds[97b4ac65-73f8-4339-a707-bad53763fb2e].Produs">
        Cantitate:
        <input id="comds_97b4ac65-73f8-4339-a707-bad53763fb2e__Cantitate" type="text" value="0" name="comds[97b4ac65-73f8-4339-a707-bad53763fb2e].Cantitate">
        Pret:
        <input id="comds_97b4ac65-73f8-4339-a707-bad53763fb2e__Pret" type="text" value="17.23" size="4" name="comds[97b4ac65-73f8-4339-a707-bad53763fb2e].Pret">
        TVA:
        <input id="comds_97b4ac65-73f8-4339-a707-bad53763fb2e__TVA" type="text" value="0.24" name="comds[97b4ac65-73f8-4339-a707-bad53763fb2e].TVA">
        Total:
        <input id="comds_97b4ac65-73f8-4339-a707-bad53763fb2e__Total" type="text" value="0" name="comds[97b4ac65-73f8-4339-a707-bad53763fb2e].Total">
        <a class="deleteRow" href="#">Sterge</a>
      </div>
   <div class="editorRow">.....
</div>

因此,我正在渲染部分视图以显示更多项目,并且我有一个操作来创建更多项目。 当我更改第一个 DropDownList 中的值以重新填充第二个 DropDownList 时,我尝试调用 Json 函数。 这是我的脚本:更新

             <script type="text/javascript">
            $(document).ready(function () {
            $('name$=.Grupa').change(function () {

                var url = '<%= Url.Content("~/") %>' + "Comenzi/ForProduse";
                var ddlsource = $(this);
                var ddltarget = $(this).siblings('[name$=.Produs]:first');
                $.getJSON(url, { id: $(ddlsource).val() }, function (data) {
                    $(ddltarget).empty();
                    $.each(data, function (index, optionData) {
                        $(ddltarget).append("<option value='" + optionData.Value + "'>" + optionData.Text + "</option>");
                        });

                    });
                });
            });
       </script>

来自控制器的我的 Json 操作未被调用。我必须在脚本中更改哪些内容才能正常工作?谢谢!

This is my HTML code:

<div id="editorRows">
  <div class="editorRow">
     <input type="hidden" value="01c4ed6d-1234-4951-b048-d86208636479" autocomplete="off" name="comds.index">
     Grupa:
     <select id="comds_01c4ed6d-1234-4951-b048-d86208636479__Grupa" name="comds[01c4ed6d-1234-4951-b048-d86208636479].Grupa">
     Produsul:
     <select id="comds_01c4ed6d-1234-4951-b048-d86208636479__Produs" name="comds[01c4ed6d-1234-4951-b048-d86208636479].Produs">
     Cantitate:
     <input id="comds_01c4ed6d-1234-4951-b048-d86208636479__Cantitate" type="text" value="0" name="comds[01c4ed6d-1234-4951-b048-d86208636479].Cantitate" data-val-required="The Cantitate field is required." data-val-number="The field Cantitate must be a number." data-val="true">
      Pret:
      <input id="comds_01c4ed6d-1234-4951-b048-d86208636479__Pret" type="text" value="17.23" size="4" name="comds[01c4ed6d-1234-4951-b048-d86208636479].Pret" data-val-required="The Pret field is required." data-val-number="The field Pret must be a number." data-val="true">
      TVA:
      <input id="comds_01c4ed6d-1234-4951-b048-d86208636479__TVA" type="text" value="0.24" name="comds[01c4ed6d-1234-4951-b048-d86208636479].TVA" data-val-required="The TVA field is required." data-val-number="The field TVA must be a number." data-val="true">
      Total:
      <input id="comds_01c4ed6d-1234-4951-b048-d86208636479__Total" type="text" value="0" name="comds[01c4ed6d-1234-4951-b048-d86208636479].Total" data-val-required="The Total field is required." data-val-number="The field Total must be a number." data-val="true">
      <a class="deleteRow" href="#">Sterge</a>
    </div>

    <div class="editorRow">
        <input type="hidden" value="97b4ac65-73f8-4339-a707-bad53763fb2e" autocomplete="off" name="comds.index">
        Grupa:
        <select id="comds_97b4ac65-73f8-4339-a707-bad53763fb2e__Grupa" name="comds[97b4ac65-73f8-4339-a707-bad53763fb2e].Grupa">
        Produsul:
        <select id="comds_97b4ac65-73f8-4339-a707-bad53763fb2e__Produs" name="comds[97b4ac65-73f8-4339-a707-bad53763fb2e].Produs">
        Cantitate:
        <input id="comds_97b4ac65-73f8-4339-a707-bad53763fb2e__Cantitate" type="text" value="0" name="comds[97b4ac65-73f8-4339-a707-bad53763fb2e].Cantitate">
        Pret:
        <input id="comds_97b4ac65-73f8-4339-a707-bad53763fb2e__Pret" type="text" value="17.23" size="4" name="comds[97b4ac65-73f8-4339-a707-bad53763fb2e].Pret">
        TVA:
        <input id="comds_97b4ac65-73f8-4339-a707-bad53763fb2e__TVA" type="text" value="0.24" name="comds[97b4ac65-73f8-4339-a707-bad53763fb2e].TVA">
        Total:
        <input id="comds_97b4ac65-73f8-4339-a707-bad53763fb2e__Total" type="text" value="0" name="comds[97b4ac65-73f8-4339-a707-bad53763fb2e].Total">
        <a class="deleteRow" href="#">Sterge</a>
      </div>
   <div class="editorRow">.....
</div>

So, I'm Rendering a partial view to display more items and I have an action to create more.
I'm trying to call a Json function when I change the value in the first DropDownList to repopulate the second one.
This is my script: UPDATE

             <script type="text/javascript">
            $(document).ready(function () {
            $('name$=.Grupa').change(function () {

                var url = '<%= Url.Content("~/") %>' + "Comenzi/ForProduse";
                var ddlsource = $(this);
                var ddltarget = $(this).siblings('[name$=.Produs]:first');
                $.getJSON(url, { id: $(ddlsource).val() }, function (data) {
                    $(ddltarget).empty();
                    $.each(data, function (index, optionData) {
                        $(ddltarget).append("<option value='" + optionData.Value + "'>" + optionData.Text + "</option>");
                        });

                    });
                });
            });
       </script>

My Json Action from the controller is not being called. What must I change in the script in order to work? Thanks!

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评论(2

夜吻♂芭芘 2024-11-22 23:55:18

不确定这是唯一的问题,但我认为您正在构建的选择器不是您想要制作的。

.editRow.Grupa

将与类 editRow 和类 .Grupa 匹配一个元素

,我认为这一行:

var ddlsource = '.editRow.Grupa';

可能应该是 $(this);
你的 var ddlsource = '.editRow.Grupa';

应该类似于 var target = $(this).siblings('[name$=.Produs]:first');< /code>

然后其中任何一个: $(ddltarget) 应该改为目标。

像这样的事情:

$(document).ready(function () {
         $('[name$=.Grupa]').change(function () {   //targets things with the name ending in .Grupa

            var url = '<%= Url.Content("~/") %>' + "Comenzi/ForProduse";
            var source =$(this); //this will be which ever one is changed
            var target = $(this).siblings('[name$=.Produs]:first');  //this SHOULD find the first select with a name ending in .Produs that is the sibling (same level in the dom to the changed select)
            $.getJSON(url, { id: source.val() }, function (data) {
                      target.empty();
                      $.each(data, function (index, optionData) {
                      target.append("<option value='" + optionData.Value + "'>" + optionData.Text + "</option>");

                  });

               });
            });
          });

我还没有测试过这个,但这就是你需要做的事情的总体思路。请注意,我使用的选择器效率很低,如果您可以更改生成的代码,以便您的选择框具有已知的类,那么代码会更整洁,也更有效

not sure this is the only problem, but i think the selectors you are building are not what you mean to make.

.editRow.Grupa

will match an element with the class editRow and the class .Grupa

i think this line:

var ddlsource = '.editRow.Grupa';

should probably just be $(this);
and your var ddlsource = '.editRow.Grupa';

should be something like var target = $(this).siblings('[name$=.Produs]:first');

and then any of these: $(ddltarget) should be target instead.

soemthing like this:

$(document).ready(function () {
         $('[name$=.Grupa]').change(function () {   //targets things with the name ending in .Grupa

            var url = '<%= Url.Content("~/") %>' + "Comenzi/ForProduse";
            var source =$(this); //this will be which ever one is changed
            var target = $(this).siblings('[name$=.Produs]:first');  //this SHOULD find the first select with a name ending in .Produs that is the sibling (same level in the dom to the changed select)
            $.getJSON(url, { id: source.val() }, function (data) {
                      target.empty();
                      $.each(data, function (index, optionData) {
                      target.append("<option value='" + optionData.Value + "'>" + optionData.Text + "</option>");

                  });

               });
            });
          });

i haven't tested this, but that's the general idea of what you need to go for. note, the selectors i'm using are quite inefficient, if you can change the generated code so that your select boxes have a known class, it'd be much tidier code, and more effective

茶底世界 2024-11-22 23:55:18

除非我只是错过了 $('.editRow.Grupa') 似乎与您的 html 中的任何内容都不匹配。这表示要查找具有 editRowGrupa 类的所有元素。您没有属于 Grupa 类的元素。

请参阅此选择器列表以了解选择项目的有效方法:

http://api.jquery.com/category/选择器/

如果您将其更改为 $('.editRow .Grupa') 并向您的 Grupa 选择添加一个类,即 Grupa,那么您的选择器就关闭了。

这意味着,获取类为 editRow 且类为 Grupa 的元素内部的所有元素。您的选择器表示您需要所有同时具有 editRowGrupa 类的元素。

Unless I'm just missing it $('.editRow.Grupa') doesn't appear to match anything in your html. This says to find all elements with a class of editRow and Grupa. You have no elements with a class of Grupa.

See this list of selectors for valid ways of selecting items:

http://api.jquery.com/category/selectors/

Your selector is close if you change it to $('.editRow .Grupa') and add a class to your Grupa select that is Grupa.

What this is saying is, get all elements which are inside of an element with the class of editRow and have the class of Grupa. Your selector says that you want all element which have both the class editRow and Grupa.

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