如何返回两个Json
个对象?基本上我试图从sql db发送一堆数据和db中的行数。
以下代码成功发送myData
,但现在我还想发送count
。
string sqlquery = "SELECT Q1, Q2, Q3, Q4, Improvements, Comments FROM myTable";
conn.Open();
SqlDataAdapter cmd = new SqlDataAdapter(sqlquery, conn);
SqlCommand comd = new SqlCommand(sqlquery, conn);
DataSet myData = new DataSet();
cmd.Fill(myData, "myTable");
comd.CommandText = "SELECT COUNT(*) FROM myTable";
Int32 count = (Int32)comd.ExecuteScalar();
comd.ExecuteNonQuery();
conn.Close();
return JsonConvert.SerializeObject(myData, Formatting.Indented,
new JsonSerializerSettings
{
ReferenceLoopHandling = ReferenceLoopHandling.Ignore
});
这是我的网格
this.grid = Ext.create('Ext.grid.Panel', {
title: 'GridView App',
frame: true,
trackMouseOver: true,
disableSelection: true,
autoHeight: true,
store: store,
loadMask: true,
columns: [
{ header: 'Q1',
sortable: true, dataIndex: 'Q1'
},
{ header: 'Q2',
sortable: true, dataIndex: 'Q2'
},
{ header: 'Q3',
sortable: true, dataIndex: 'Q3'
},
{ header: 'Q4',
sortable: true, dataIndex: 'Q4'
},
{ header: 'Improvements', flex: 1,
sortable: true, dataIndex: 'Improvements'
},
{ header: 'Comments', flex: 1,
sortable: true, dataIndex: 'Comments'
}
],
这是我的商店...
var store = Ext.create('Ext.data.JsonStore', {
storeId: 'myData',
scope: this,
pagesize: itemsPerPage,
remoteSort: true,
fields: [
{ name: 'Q1', type: 'int' },
{ name: 'Q2', type: 'int' },
{ name: 'Q3', type: 'int' },
{ name: 'Q4', type: 'int' },
{ name: 'Q5', type: 'int' },
{ name: 'Improvements', type: 'string' },
{ name: 'Comments', type: 'string' }
],
sorters: [
{
property: 'Q1',
direct: 'ASC'
}
],
proxy: {
type: 'ajax',
scope: this,
url: 'GridView/writeRecord',
reader: {
type: 'json',
root: 'myTable',
totalProperty: 'count'
}
}
});
答案 0 :(得分:0)
这是我的工作方式,我将它用于我的所有mvc应用程序。我在互联网上找到了这个例子(我稍微改了一下),因为我在办公室,只在这里使用webforms(我知道......那很糟糕,当你去mvc时你永远不会回去)
public class Person
{
public string Name { get; set; }
public string Surname { get; set; }
}
public class HomeController : Controller
{
public List<Person> personList = new List<Person>{
new Person{ Name="Jpnh", Surname="Coco"},
new Person{ Name="Mike", Surname="Nile"}
};
public ActionResult Index()
{
return View();
}
public ActionResult GetData()
{
return Json(personList);
}
}
<script type="text/javascript" language="javascript">
$(document).ready(function () {
$('#button').click(GetValue);
});
function GetValue() {
$.ajax({
url: "/Home/GetData",
success: function (data) {
alert(data[0].Name);
}
});
};
</script>
代码本身非常直观易懂,我假设您从数据库中填写通用列表没有问题
让我知道
答案 1 :(得分:0)
这基本上就是我在ASP.NET应用程序中的表现,我也在使用JSON.NET:
string sqlquery = "SELECT Q1, Q2, Q3, Q4, Improvements, Comments FROM myTable";
conn.Open();
SqlDataAdapter cmd = new SqlDataAdapter(sqlquery, conn);
SqlCommand comd = new SqlCommand(sqlquery, conn);
DataSet myData = new DataSet();
cmd.Fill(myData, "myTable");
comd.CommandText = "SELECT COUNT(*) FROM pid_FluSurvey";
Int32 count = (Int32)comd.ExecuteScalar();
comd.ExecuteNonQuery();
conn.Close();
return JsonConvert.SerializeObject( new { myTable = myData.Tables[0], count = count }, Formatting.Indented,
new JsonSerializerSettings
{
ReferenceLoopHandling = ReferenceLoopHandling.Ignore
});
这里重要的是你可以在任何匿名类型上调用SerializeObject
并在那里放置你想要/需要的任何数量的属性。