利用 jQuery Clone 复制行(6)

 
    for(var i=1; i<this.rowGroupNumber+1; i++) { 
      tbl.find("#row" + i + "_" + groupIdx).remove(); 
    } 
 
    this._countForRowsGroup--; 
  }; 
 
} 
function RowCopyUtility(opts) {
  // 表格Id
  this.tableId = opts.tableId;
  // 分组内有多少行
  this.rowGroupNumber = opts.rowGroupNumber;
  // 一组内Button对应的方法Map(key=Button value, value=对应方法名)
  // 所有方法都应以 function (idx) 方式调用
  this.buttonHandlers = opts.buttonHandlers;
 
  this._countForRowsGroup = -1;
  this._keyForRow = -1;

  this.getTargetRowGroup = function(groupIdx) {

    var rows = [];
    if (groupIdx > 0) {
      for(var i=1; i<this.rowGroupNumber+1; i++) {
        rows[i-1] = $("#row" + i + "_" + groupIdx);
      }
    } else {
      for(var i=0; i<this.rowGroupNumber; i++) {
        rows[i] = $("#" + this.tableId + " tr[id]").eq(i);
      }
    }
    return rows;
  };

  this.addRow = function (groupIdx, needCopyValue) {

    if (this._countForRowsGroup == -1) {
      this._countForRowsGroup = ($("#" + this.tableId + " tr[id]").length - 1)/this.rowGroupNumber;
      this._keyForRow =  parseInt($("#" + this.tableId + " tr[id]:not(#row_add):last").attr("id").split("_")[1]) + 1;
    }

    if (groupIdx == 0) {
      var firstRow = $("#" + this.tableId + " tr[id]:first");
      var currentIdx = firstRow.attr("id").split("_")[1];
      groupIdx = currentIdx;
    }

    var regForId = new RegExp("^(\\w+_)" + groupIdx + "$");
    var regForName = new RegExp("^(\\w+_)" + groupIdx + "$");
    var regForRadioId = new RegExp("^(\\w+_)" + groupIdx + "(.*)$");

    var targetRows = this.getTargetRowGroup(groupIdx);

    // 重要：注意闭包参数的作用域
    var idx = this._keyForRow;

    for(var i=0; i<targetRows.length; i++) {
      // clone target rows
      var cloneRow = targetRows[i].clone(false);