添加或从数据库

Question

我想从数据库中添加或减少的onclick减去onClick()逐个增加或减去Button。

我的代码

$.ajax({ 
     type:'POST', 
     dataType: 'json', 
     url:'storage.php', 
     data:{search: $("#s_inven").val()}, 
     success:function(rows){ 

      for (var i = 0, len = rows.length; i < len; i++) { 

       $('#inven').append('<tr><td>'+ rows[i].G_Name +'</td><td>'+ 
         '<button data-icon="plus" data-iconpos="notext" id="'+ 
         rows[i].Id + 'plus" value="'+ rows[i].Id + '">+</button>' + 
         '</td><td>'+ '<label id="">'+ rows[i].quant +'</label></td><td>'+ 
         '<button data-icon="minus" data-iconpos="notext" id="'+ 
         rows[i].G_Name +'minus" value="'+ rows[i].G_Name + 
         '">-</button>' +'</td></tr>'   
      } 
    ); 

当用户点击添加Button我想更新 rows[i].quant到rows[i].quant+1。

Answer 1

事情是这样的：

$.ajax({ 
    type:'POST', 
    dataType: 'json', 
    url:'storage.php', 
    data:{search: $("#s_inven").val()}, 
    success:function(rows){ 

     for (var i = 0, len = rows.length; i < len; i++) { 

      $('#inven').append('<tr><td>'+ rows[i].G_Name +'</td><td>'+ 
        '<button data-icon="plus" data-iconpos="notext" id="'+ 
        rows[i].Id + 'plus" value="' + rows[i].Id + '" onclick="addVal(' + rows[i].Id + ')">+</button>' + 
        '</td><td>'+ '<label id="quant' + rows[i].Id + '">'+ rows[i].quant +'</label></td><td>'+ 
        '<button data-icon="minus" data-iconpos="notext" id="'+ 
        rows[i].G_Name +'minus" value="'+ rows[i].G_Name + 
        '">-</button>' +'</td></tr>'   
     } 
); 

function addVal(id) 
{ 
    var labelId = 'quant' + id; 
    var label = document.getElementById(labelId); 
    if (label) 
    { 
     var oldVal = label.innerHTML; 
     var newVal = parseInt(oldVal) + 1; 
     label.innerHTML = newVal; 
     // + ajax call to update the db 
    } 
}