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問題是我有一個JavaScript,使我的用戶可以設置一個值可以說'0.6',並設置此值,他們可以將其複製到我在JavaScript中指定的類ID。問題是我想找出一種方法來限制這個,所以可以說他們複製了值,但只希望它粘貼到前5個文本字段中,我怎麼才能設置限制粘貼值的次數,我很困惑如何做到這一點,因爲我的類ID可以有任何數量的文本字段。任何幫助將不勝感激!!!如何限制正在複製的某個值的數量。
這裏是我的JavaScript複印功能
$('.val_class').click(function() {
var txt;
var r = confirm("Are you sure you want to copy this value to each sample?.");
var text = $('.val_box').val();
if (r == true) {
$('.reading_class').val(text);
} else {
}
});
這是我的看法。
%th
%h2 Set a value to be copied to each sample.
%br
%tbody
%td
.js
%li Reading One
%br
=f.text_field :valc, :id => 'valc', :class => 'val_box', :hint => "You can set a value in this text box that will be copied to all of the samples, by pressing copy value button."
.control-group
.controls
%button{:type => "button", :class => 'val_class', :id => "val_class"}Copy this value to all samples(Reading One)
[email protected] do |sample|
=number_field_tag "dimension[samples][#{sample.id}][value1]", sample.value_for_dim(@dimension, index+1), :id => 'reading', :class => 'reading_class', :step => "0.000001"
完全忘記了片太感謝你了! @Piotr Kruczek – Snowman