我有一个//create FusionTable-instance
$table = new Google_Service_Fusiontables_Table;
//set table-name
$table->setName('myTableName');
//set required option isExportable
$table->setIsExportable('true');
//set column(s)
$table->setColumns(array(
new Google_Service_Fusiontables_Column(array('type'=>'STRING',
'name'=>'columnName')),
new Google_Service_Fusiontables_Column(array('type'=>'NUMBER',
'name'=>'otherName'))
)
);
//insert the table
//$service is a Google_Service_Fusiontables-instance
$result = $service->table->insert($table);
//display Id of the new FusionTable
echo $result->tableId;
来处理图表div和<div id="LineSumbalance"></div>来关键参数，textbox来解雇。
button我编写了一个代码来查询数据库中的数据：
<asp:TextBox ID="txtDate" CssClass="form-control" runat="server"></asp:TextBox>
<asp:TextBox ID="txtSearchTerm" runat="server" Width="200px" class="form-control" placeholder="Terminal Number" spellcheck="false"></asp:TextBox>
<asp:Button ID="btnSearchTerm" runat="server" Text="Search" class="btn btn-primary" />
以上代码运作正常。
问题出在<WebMethod()>
Public Shared Function GetChart(ByVal Tdate As String, ByVal Term As String) As List(Of Object)
Dim BizFunc As New BizFunction.UtilFormat
Dim chartData As New List(Of Object)()
Dim TabName As String = "TA" & Tdate
Dim TodayDate As String = BizFunc.Date2YYMM(Today.Date)
Dim labels As New List(Of String)()
If Tdate = Mid(TodayDate, 1, 4) Then
TabName = "(select * from " & TabName & " union all select * from TA" & TodayDate & ") TA "
End If
Dim query As String = "WITH t1 AS (SELECT dt,DATEADD(MONTH,DATEDIFF(MONTH,'1900-01-01',dt),'1900-01-01') AS firstInMonth,DATEADD(DAY,-1,DATEADD(MONTH,DATEDIFF(MONTH,'1900-01-01',dt)+1,'1900-01-01')) AS lastInMonth,amount " &
" FROM(SELECT CONVERT(DATE, tran_date) AS dt,COUNT(*) AS AMOUNT FROM " & TabName & " WHERE TERM Like '%" & Term.PadRight(16, " ") & "%' and (TRANS = '05' or TRANS = '06') GROUP BY TRAN_DATE) AS st " &
"Group BY dt, amount), " &
"Calendar " &
" AS (SELECT DISTINCT DATEADD(DAY, c.number,t1.firstInMonth) AS d FROM t1 JOIN master..spt_values AS c On type = 'P' AND DATEADD(DAY,c.number,t1.firstInMonth) BETWEEN t1.firstInMonth AND t1.lastInMonth) " &
" Select DatePart(dd, d) Date, Case When amount Is NULL Then 0 Else amount End As amount FROM calendar As c LEFT JOIN t1 On t1.dt = c.d;"
Dim dtbal As DataTable = GetData(query)
Dim series1 As New List(Of Integer)()
For Each row As DataRow In dtbal.Rows
labels.Add(Convert.ToString(row("Date")))
Next
chartData.Add(labels)
For Each row As DataRow In dtbal.Rows
series1.Add(Convert.ToInt32(row("AMOUNT")))
Next
chartData.Add(series1)
Return chartData
End Function
：
Javascript我尝试在每一行都发出警报，并且卡在$(function () {
$("[id*=btnSearchTerm]").click(function () {
LoadChart();
});
});
function LoadChart() {
var tdate = $("[id*=txtdate]").val();
var term = $("[id*=txtSearchTerm]").val();
$.ajax({
type: "POST",
url: "MonthlyBalancing.aspx/GetChart",
data: "{TDate: '" + tdate + "', term: '" + term + "'}",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (r) {
var labels = r.d[0];
var series1 = r.d[1];
var data = {
labels: labels,
datasets: [
{
label: "Dataset1",
backgroundColor: "rgba(38, 185, 154, 0.31)",
borderColor: "rgba(38, 185, 154, 0.7)",
pointBorderColor: "rgba(38, 185, 154, 0.7)",
pointBackgroundColor: "rgba(38, 185, 154, 0.7)",
pointHoverBackgroundColor: "#fff",
pointHoverBorderColor: "rgba(220,220,220,1)",
pointBorderWidth: 1,
data: series1
}]
};
$("#LineSumbalance").html("");
var canvas = document.createElement('canvas');
$("#LineSumbalance")[0].appendChild(canvas);
//Fix for IE 8
if ($.browser.msie && $.browser.version == "8.0") {
G_vmlCanvasManager.initElement(canvas);
}
var ctx = canvas.getContext('2d');
var lineChart = new Chart(ctx).Line(data, {
bezierCurve: false
});
},
failure: function (response) {
alert('There was an error.');
}
});
}
上。即使失败，它也不会执行任何操作。
答案 0 :(得分：0)
命名至少存在一个问题：您的控件为<asp:TextBox ID="txtDate"，但您调用的$("[id*=txtdate]").val();似乎也需要txtDate（使用大写字母D）。
关于ajax - 您需要调试该函数以确保它在每一步中获得的内容。在必要的地方添加debugger;或alert();并运行代码。例如，添加
...
success: function (r) {
alert(r);
var labels = r.d[0];
...
并查看是否会定义r。