javascript 将多行从一个表拖放到另一个表
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Drag and drop multiple rows from one table to another table
提问by Karthik
I need to drag and drop table rows by selecting desired rows from on table to another table. First provide option to select needed rows from one table and then all the selected rows need to be drag and drop into some other table.
我需要通过从一个表中选择所需的行到另一个表来拖放表行。首先提供从一个表中选择所需行的选项，然后需要将所有选定的行拖放到其他表中。
I have done the sample to drag and drop single row from on table to another. Find the below code:
我已经完成了将单行从一个表拖放到另一个的示例。找到以下代码：
html:
html：
<div id="table1" class="bitacoratable">
<table>
<thead>
<tr>
<th>ID</th>
<th>ClassName</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>Class 1</td>
</tr>
<tr class="childrow">
<td collspan = "2" >
<table class="childgrid">
<tr class="draggable_tr">
<td>1</td>
<td>Student 1</td>
</tr>
<tr class="draggable_tr">
<td>2</td>
<td>Student 2</td>
</tr>
<tr class="draggable_tr">
<td>3</td>
<td>Student 3</td>
</tr>
<tr class="draggable_tr">
<td>4</td>
<td>Student 4</td>
</tr>
<tr class="draggable_tr">
<td>5</td>
<td>Student 5</td>
</tr>
</table>
</td>
</tr>
<tr>
<td>2</td>
<td>Class 2</td>
</tr>
<tr class="childrow">
<td collspan = "2">
<table class="childgrid">
<tr class="draggable_tr">
<td>6</td>
<td>Student 6</td>
</tr>
<tr class="draggable_tr">
<td>7</td>
<td>Student 7</td>
</tr>
<tr class="draggable_tr">
<td>8</td>
<td>Student 8</td>
</tr>
<tr class="draggable_tr">
<td>9</td>
<td>Student 9</td>
</tr>
<tr class="draggable_tr">
<td>10</td>
<td>Student 10</td>
</tr>
</table>
</td>
</tr>
</tbody>
</table>
</div>
<div id="table2" class="bitacoratable">
<table>
<thead>
<tr>
<th>ID</th>
<th>ClassName</th>
</tr>
</thead>
<tbody>
<tr>
<td>1</td>
<td>Class 1</td>
</tr>
<tr class="childrow">
<td>
<table class="childgrid">
<tr class="draggable_tr">
<td>1</td>
<td>Student 1</td>
</tr>
<tr class="draggable_tr">
<td>2</td>
<td>Student 2</td>
</tr>
<tr class="draggable_tr">
<td>3</td>
<td>Student 3</td>
</tr>
<tr class="draggable_tr">
<td>4</td>
<td>Student 4</td>
</tr>
<tr class="draggable_tr">
<td>5</td>
<td>Student 5</td>
</tr>
</table>
</td>
</tr>
<tr>
<td>2</td>
<td>Class 2</td>
</tr>
<tr class="childrow">
<td>
<table class="childgrid">
<tr class="draggable_tr">
<td>6</td>
<td>Student 6</td>
</tr>
<tr class="draggable_tr">
<td>7</td>
<td>Student 7</td>
</tr>
<tr class="draggable_tr">
<td>8</td>
<td>Student 8</td>
</tr>
<tr class="draggable_tr">
<td>9</td>
<td>Student 9</td>
</tr>
<tr class="draggable_tr">
<td>10</td>
<td>Student 10</td>
</tr>
</table>
</td>
</tr>
</tbody>
</table>
</div>
Script:
脚本：
$("#table1 .childgrid tr, #table2 .childgrid tr").draggable({
helper: 'clone',
revert: 'invalid',
start: function (event, ui) {
$(this).css('opacity', '.5');
},
stop: function (event, ui) {
$(this).css('opacity', '1');
}
});
$("#table1 .childgrid, #table2 .childgrid").droppable({
drop: function (event, ui) {
$(ui.draggable).appendTo(this);
}
});
$(document).on("click", ".childgrid tr", function () {
$(this).addClass("selectedRow");
});
CSS:
CSS：
table
{
border-collapse:collapse;
}
table, td, th
{
border:1px solid black;
}
.bitacoratable {
height: 400px;
overflow-y: auto;
width: 220px;
float:left;
}
#table1 {
margin-right: 100px;
}
.selectedRow {
background-color: #E7E7E7;
cursor: move;
}
How to do it for mutilple rows?
如何为多行做到这一点？
Regards, Karthik.
问候，卡西克。
回答by WindsofTime
You could use draggable's helper function. There's a nice implementation here.
您可以使用 draggable 的辅助功能。有一个很好的实现在这里。
Here's how it looks using the above as a guideline for your particular code:
以下是使用上述内容作为特定代码指南的外观：
Explanation of what's going on:
对正在发生的事情的解释：
(1) If there's only one selected, then we'll just treat this as a single drag and drop. Because it was not clicked yet (mouse holding down and dragging right away), we'll manually add the selectedRow class to ensure it gets properly removed from its original location.
(1) 如果只选择了一个，那么我们就将其视为一次拖放。因为它还没有被点击（鼠标按住并立即拖动），我们将手动添加 selectedRow 类以确保它从其原始位置正确删除。
(selected.length === 0) {
selected = $(this).addClass('selectedRow');
}
(2) Make a temporary container to store all the rows as one unit, as if we were dragging one item.
(2) 制作一个临时容器，将所有行存储为一个单元，就像我们在拖动一个项目一样。
var container = $('<div/>').attr('id', 'draggingContainer');
container.append(selected.clone().removeClass("selectedRow"));
return container;
(3) You can modify the CSS so that we're always clicking on the items before it shows the move cursor. I already did, but feel free to change it as you like.
(3) 您可以修改 CSS，以便我们始终在显示移动光标之前单击项目。我已经这样做了，但您可以随意更改它。
(4) Now we append all the table rows in our temporary divider into the .childgrid we chose to drop into and remove all elements that originally were selected.
(4) 现在我们将临时分隔符中的所有表格行附加到我们选择放入并删除所有最初选择的元素的 .childgrid 中。
$("#table1 .childgrid, #table2 .childgrid").droppable({
drop: function (event, ui) {
$(this).append(ui.helper.children());
$(this) is what we chose, and we're appending the elements inside our temporary divider that the helper returns, which are the table rows.
$(this) 是我们选择的，我们将辅助器返回的临时分隔符中的元素附加到表行中。
$('.selectedRow').remove();
}
Now to get rid of those table rows that we selected earlier.
现在摆脱我们之前选择的那些表行。
});
Let me know if there are any bugs and I'll try my best to sort them out. It works on my end. Since you can highlight the text in the table rows, there could possibly be some issues if you drag and drop too fast and you're highlighting text rather than selecting the row itself.
让我知道是否有任何错误，我会尽力解决它们。它对我有用。由于您可以突出显示表格行中的文本，因此如果拖放速度过快并且突出显示文本而不是选择行本身，则可能会出现一些问题。
