如何在输入框上设置默认值,并在其上初始化select2 [英] how to set default value on an input box with select2 initialized on it

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本文介绍了如何在输入框上设置默认值,并在其上初始化select2的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

如何使用select2在输入框上设置默认值?这是我的HTML

How do I set default value on an input box with select2? here is my HTML

<input type="text" id="itemId0" value="Item no. 1">

和我的javascript:

and my javascript:

    $("#itemId0").select2({
    placeholder: 'Select a product',
    formatResult: productFormatResult,
    formatSelection: productFormatSelection,
    dropdownClass: 'bigdrop',
    escapeMarkup: function(m) { return m; },
    minimumInputLength:1,
    ajax: {
        url: '/api/productSearch',
        dataType: 'json',
        data: function(term, page) {
            return {
                q: term
            };  
        },  
        results: function(data, page) {
            return {results:data};
        }   
    }   
});

function productFormatResult(product) {
   var html = "<table><tr>";
   html += "<td>";
   html += product.itemName ;
   html += "</td></tr></table>";
   return html;
}

function productFormatSelection(product) {
var selected = "<input type='hidden' name='itemId' value='"+product.id+"'/>";
return selected + product.itemName;
}

这是问题:
如果我不初始化我的输入框进入select2框,我可以显示输入框的默认值,即项目编号1,
但是当我用select2初始化时,例如。 $(#itemId0)。select2({code here}); 然后我无法显示我的文本框的默认值。 。

here is the issue: If I wont initialize my input box into a select2 box, I can display the default value of my input box which is "Item no. 1", but when I initialize it with select2 eg. $("#itemId0").select2({code here}); I cant then display the default value of my text box. .

任何人都知道如何显示请问默认值?

Anyone knows how can I display the default value please?

推荐答案

您需要使用 initSelection 方法作为在Select2的文档中描述。

You need to utilize the initSelection method as described in Select2's documentation.

来自文档


创建Select2时调用,以允许用户根据元素select2的值附加初始化选择。

Called when Select2 is created to allow the user to initialize the selection based on the value of the element select2 is attached to.

在您的情况下,请查看加载远程数据示例,因为它显示了如何将其与AJAX请求合并。

In your case, take a look at the Loading Remote Data example as it shows how to incorporate it along with AJAX requests.

我希望这会有所帮助。

这篇关于如何在输入框上设置默认值,并在其上初始化select2的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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