Question

我已经尝试了很多方法来获取jquery UI中被删除元素的id。请帮助获取id的值。

$( function() {    

    $(".draggable").draggable({
        revert: "invalid",      
        helper: "clone"     
    });

$( "#droppable2" ).droppable({
        drop: function( event, ui ) {
            var draggable = ui.draggable;           
            var dragged = draggable.clone(); 
            var currentID = ui.draggable.attr("id");/*draggable.find('id'); - returns an object. but, could not get the id. */

            alert(dragged.html());          
            alert(currentID);
            dragged.resizable();
            dragged.appendTo("#droppable2");

            //alert("open properties");
      }
    });

  } );

被删除元素的html返回并包含id。

--- --- HTML

<div class="ui-widget-content draggable">
                <select id='singleSelect'>
                  <option value="volvo">Volvo</option>
                  <option value="saab">Saab</option>
                  <option value="opel">Opel</option>
                  <option value="audi">Audi</option>
                </select>
            </div>

<div id='droppable2' class="ui-widget-header" height='100%'><p/></div>

Answer 1

您需要先找到private void UpdSalaryMonthTime_Click(object sender, EventArgs e) { foreach (DataGridViewRow item in dataGridView1.Rows) { DataGridViewCheckBoxCell chk = item.Cells[0] as DataGridViewCheckBoxCell; if (Convert.ToBoolean(chk.Value) == true) { connection.Open(); SqlCommand cmd = new SqlCommand(@"USE @Name Update VariablesHistory set [Date] = CAST(FLOOR(CAST([Date] AS FLOAT)) AS DATETIME) Update ContractFormulaSalaryHistory set [Date] = CAST(FLOOR(CAST([Date] AS FLOAT)) AS DATETIME) Update FormulaSalaryHistory set [Date] = CAST(FLOOR(CAST([Date] AS FLOAT)) AS DATETIME) Update ValueSalary set [Date] = CAST(FLOOR(CAST([Date] AS FLOAT)) AS DATETIME) Update SalaryMonth set [Month] = CAST(FLOOR(CAST([Month] AS FLOAT)) AS DATETIME) Update LengthOfService set [Month] = CAST(FLOOR(CAST([Month] AS FLOAT)) AS DATETIME) Update Dekl1Value set [Date] = CAST(FLOOR(CAST([Date] AS FLOAT)) AS DATETIME) Update Dekl1FormulaHistory set [Date] = CAST(FLOOR(CAST([Date] AS FLOAT)) AS DATETIME) Update Dekl6Value set [Date] = CAST(FLOOR(CAST([Date] AS FLOAT)) AS DATETIME) Update Dekl6FormulaHistory set [Date] = CAST(FLOOR(CAST([Date] AS FLOAT)) AS DATETIME) --Update TaxRecalculationFormulaHistory --set [Date] = CAST(FLOOR(CAST([Date] AS FLOAT)) AS DATETIME)", connection); cmd.CommandTimeout = 0; cmd.ExecuteNonQuery(); connection.Close(); MessageBox.Show("Updated!", "Updated", MessageBoxButtons.OK, MessageBoxIcon.Information); } } }，然后找到select，因为id会返回 nodeList ，正如我所说的那样我的评论，你使用了ui.draggable标签错误，纠正了一下：

＆＃13;

<p>

＆＃13;

$(function() {

  $(".draggable").draggable({
    revert: "invalid",
    helper: "clone"
  });

  $("#droppable2").droppable({
    drop: function(event, ui) {
      var draggable = ui.draggable;
      var dragged = draggable.clone();
      var currentID = ui.draggable.find('select').attr('id');
      console.log(currentID);
      dragged.resizable();
      dragged.appendTo("#droppable2");

      //alert("open properties");
    }
  });

});

＆＃13;

Answer 2

我想分享一下，您可以简单地使用以下代码来获取放置元素的ID /类名：

ui.draggable.attr("yourid/yourclass");

将此代码添加到您的droppable函数中。

如何获取被删除元素的id - jquery UI

2 个答案: