asp.net jquery json填充列表框不工作

有人请帮助我使用Jquery/Json填充ListBox。以下是我尝试使用的代码。asp.net jquery json填充列表框不工作

的Jquery内的document.ready：

$('#<%=txtSearch.ClientID %>').keyup(function() { 
     if ($('#<%=txtSearch.ClientID %>').val().length > 1) { 
      $.ajax({ 
       type: "POST", 
       contentType: "application/json; charset=utf-8", 
       //data: "{ prefixText: '" + $('#<%=txtSearch.ClientID %>').val() + "', count: '5'}", 
       data: "{ sText: '" + $('#<%=txtSearch.ClientID %>').val() + "', sFilter: ' " + $('#<%=lsResults.ClientID %>').val() + "'}", 
       url: "../cspm/s3.asmx/GetResults", 
       dataType: "json", 
       success: function(data) { 
        var results = data.d; 
        if (results.length > 0) { 
         var listItems = []; 
         for (var key in results) { 
          listItems.push('<option value="' + 
          results[0].toString() + '">' + results[1].toString() 
          + '</option>'); 
         } 
         $('#<%=lsResults.ClientID %>').append(listItems.join('')); 
        } 
       } 
      }); 
     } 

    });

Webservice的方法代码：

<WebMethod()> _ 
Public Function GetResults(ByVal sText As String, ByVal sFilter As String) As String(,) 

    Dim searchText As String() = sText.Trim().Split(New Char() {" "c}) 
    Dim array(2, 2) As String 

    sql = New StringBuilder() 

    'If ddlProductLine.SelectedValue <> "INSTRUMENT" Then 
    sql.Append("select msi.inventory_item_id,msi.description, msi.segment1 || '.' || msi.segment2 || ' - ' || msi.description text ") 
    sql.Append("from apps.mtl_system_items_b MSI, APPS.MTL_ITEM_CATEGORIES MIC, APPS.MTL_CATEGORIES_B MC ") 
    sql.Append("where MSI.INVENTORY_ITEM_ID = MIC.INVENTORY_ITEM_ID ") 
    sql.Append("AND MSI.ORGANIZATION_ID = MIC.ORGANIZATION_ID AND MIC.CATEGORY_ID = MC.CATEGORY_ID AND MIC.CATEGORY_SET_ID = 1 AND MSI.organization_id = 83 ") 
    sql.Append("AND msi.inventory_item_status_code = 'Active' ") 
    sql.Append("and msi.description like '%" + searchText(0).ToUpper() + "%' ") 

    For i As Integer = 1 To searchText.Length - 1 
     sql.Append("and msi.description like '%" + searchText(i).ToUpper() + "%' ") 
    Next 

    sql.Append("and mc.SEGMENT1 like '%" + sFilter + "%' ") 
    sql.Append("order by msi.description ") 
    'End If 

    Dim dt As DataTable = db.ExecuteDataTable(sql.ToString()) 

    For i As Integer = 0 To dt.Rows.Count 
     array(i, 0) = dt.Rows(i)("inventory_item_id").ToString() 
     array(i, 1) = dt.Rows(i)("text").ToString() 
    Next 

    Return array 

End Function

这看起来像它应该工作，但我是新来使用jQuery的JSON，任何帮助表示赞赏。谢谢

来源

2011-11-03 Nathan

我猜问题是在此块

for (var key in results) { 
    listItems.push('<option value="' + 
    results[0].toString() + '">' + results[1].toString() 
    + '</option>'); 
}

改变它

for (var i=0; i<results.length; i++) { 
    listItems.push('<option value="' + 
    results[i][0] + '">' + results[i][1] 
    + '</option>'); 
}

来源

2011-11-03 21:09:36

asp.net jquery json填充列表框不工作

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