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我试图从动态表中获取值，之后我想用Google图表绘制它，但代码不起作用，我无法理解有什么问题。我认为问题与我用来从表中获得价值的方法有关，但我不确定。从动态表中获取值并使用谷歌图表进行绘制
当我的价值观，我尝试画它，谷歌返回以下错误：
数据列（个），轴＃0不能是字符串类型的
谁能帮我解决我的代码好吗？
链接的jsfiddle：https://jsfiddle.net/macco_cl/qaogs3sx/
var theTable, theTableBody
var myForm = document.forms.myForm; \t
var png = document.getElementById("png");
function init() {
theTable = (document.all) ? document.all.myTABLE :
document.getElementById("myTABLE")
theTableBody = theTable.tBodies[0]
}
function appendRow(form) {
insertTableRow(form, -1)
}
function addRow(form) {
insertTableRow(form, form.insertIndex.value)
}
function insertTableRow(form, where) {
var now = new Date()
var nowData = [now.getHours(), now.getMinutes(), now.getSeconds(),
now.getMilliseconds()]
clearBGColors()
var newCell
var newRow = theTableBody.insertRow(where)
for (var i = 0; i < nowData.length; i++) {
newCell = newRow.insertCell(i)
newCell.innerHTML = nowData[i]
newCell.style.backgroundColor = "salmon"
}
updateRowCounters(form)
}
function removeRow(form) {
theTableBody.deleteRow(form.deleteIndex.value)
updateRowCounters(form)
}
function insertTHEAD(form) {
var THEADData = ["Hours","Minutes","Seconds","Milliseconds"]
var newCell
var newTHEAD = theTable.createTHead()
newTHEAD.id = "myTHEAD"
var newRow = newTHEAD.insertRow(-1)
for (var i = 0; i < THEADData.length; i++) {
newCell = newRow.insertCell(i)
newCell.innerHTML = THEADData[i]
}
updateRowCounters(form)
form.addTHEAD.disabled = true
form.deleteTHEAD.disabled = false
}
function removeTHEAD(form) {
theTable.deleteTHead()
updateRowCounters(form)
form.addTHEAD.disabled = false
form.deleteTHEAD.disabled = true
}
function insertTFOOT(form) {
var TFOOTData = ["Hours","Minutes","Seconds","Milliseconds"]
var newCell
var newTFOOT = theTable.createTFoot()
newTFOOT.id = "myTFOOT"
var newRow = newTFOOT.insertRow(-1)
for (var i = 0; i < TFOOTData.length; i++) {
newCell = newRow.insertCell(i)
newCell.innerHTML = TFOOTData[i]
}
updateRowCounters(form)
form.addTFOOT.disabled = true
form.deleteTFOOT.disabled = false
}
function removeTFOOT(form) {
theTable.deleteTFoot()
updateRowCounters(form)
form.addTFOOT.disabled = false
form.deleteTFOOT.disabled = true
}
function insertCaption(form) {
var captionData = form.captionText.value
var newCaption = theTable.createCaption()
newCaption.innerHTML = captionData
form.addCaption.disabled = true
form.deleteCaption.disabled = false
}
function removeCaption(form) {
theTable.deleteCaption()
form.addCaption.disabled = false
form.deleteCaption.disabled = true
}
// housekeeping functions
function updateRowCounters(form) {
var sel1 = form.insertIndex
var sel2 = form.deleteIndex
sel1.options.length = 0
sel2.options.length = 0
for (var i = 0; i < theTableBody.rows.length; i++) {
sel1.options[i] = new Option(i, i)
sel2.options[i] = new Option(i, i)
}
form.removeRowBtn.disabled = (i==0)
}
function clearBGColors() {
for (var i = 0; i < theTableBody.rows.length; i++) {
for (var j = 0; j < theTableBody.rows[i].cells.length; j++) {
theTableBody.rows[i].cells[j].style.backgroundColor = ""
}
}
}
function GetCellValues() {
\t \t
var table = document.getElementById("myTABLE");
for (var r = 0, n = table.rows.length; r < n; r++) {
for (var c = 0, m = table.rows[r].cells.length; c < m; c++) {
alert(table.rows[r].cells[c].innerHTML);
}
}
return table;
}
function mostra() {
\t document.getElementById("chart_div").style.display="block";
}
function nascondi() {
\t document.getElementById("chart_div").style.display="none";
} \t
\t
function finestra(){
\t \t if(tf == true){
\t \t \t window.open("pngbar.html");
\t \t \t //document.getElementById("chart_div").style.display="none";
\t \t }
}
function setDati(){
\t \t
\t \t \t \t
\t \t //if(png.checked)
\t \t // \t tf = true;
\t \t //else
\t \t // \t tf = false;
\t \t \t
\t \t drawRightY();
\t \t
}
\t
function drawRightY() {
\t \t tf = false;
\t \t var valori = GetCellValues(); \t
\t \t
\t \t
\t \t var f = new Array();
\t \t
\t \t \t \t
\t \t for (var i=0;i<valori.rows.length;i++) {
\t \t \t f[i]=new Array();
\t \t \t \t for (var j=0;j<valori.rows[i].cells.length;j++) {
\t \t \t \t \t f[i][j]= valori.rows[i].cells[j].innerHTML;
\t \t \t \t \t
\t \t \t } \t \t \t
\t \t }
\t \t
\t \t var data = new google.visualization.arrayToDataTable(f,true);
var options = {
chart: {
// title: z,
},
hAxis: {
minValue: 0,
},
vAxis: {
},
axes: {
y: {
0: {side: 'right'}
}
}
};
\t if (tf == false){
\t \t var material = new google.visualization.BarChart(document.getElementById('chart_div'));
\t \t material.draw(data, options);
\t }
\t if (tf == true) {
\t \t var chart_div = document.getElementById('chart_div');
\t \t var chart = new google.visualization.BarChart(chart_div);
\t \t // Wait for the chart to finish drawing before calling the getImageURI() method.
\t \t google.visualization.events.addListener(chart, 'ready', function() {
\t \t \t chart_div.innerHTML = '<img src="' + chart.getImageURI() + '">';
\t \t \t console.log(chart_div.innerHTML);
\t \t \t
\t \t });
\t \t options = {width: 1920, height: 1080}
\t \t chart.draw(data, options);
\t \t document.getElementById("chart_div").style.display="none";
\t \t window.open(chart.getImageURI());
\t \t
\t \t }
\t
}<HTML>
<HEAD>
<TITLE>Modifying Table Cell Content</TITLE>
<STYLE TYPE="text/css">
THEAD {background-color:lightyellow; font-weight:bold}
TFOOT {background-color:lightgreen; font-weight:bold}
#myTABLE {background-color:bisque}
</STYLE>
\t <SCRIPT src="funzioni.js"></SCRIPT>
<SCRIPT type="text/javascript" src="https://www.google.com/jsapi"></SCRIPT>
<SCRIPT type="text/javascript">
// Load the Visualization API and the piechart package.
google.load('visualization', '1.0', {'packages':['corechart']});
// Set a callback to run when the Google Visualization API is loaded.
google.setOnLoadCallback(drawRightY());
</SCRIPT>
</HEAD>
<BODY onLoad="init(),nascondi()">
<H1>Modifying Tables</H1>
<HR>
<FORM NAME="controls">
<FIELDSET>
<LEGEND>Add/Remove Rows</LEGEND>
<TABLE WIDTH="100%" CELLSPACING=20><TR>
<TD><INPUT TYPE="button" VALUE="Append 1 Row"
onClick="appendRow(this.form)"></TD>
<TD><INPUT TYPE="button" VALUE="Insert 1 Row" onClick="addRow(this.form)"> at index:
<SELECT NAME="insertIndex">
<OPTION VALUE="0">0
</SELECT></TD>
<TD><INPUT TYPE="button" NAME="removeRowBtn" VALUE="Delete 1 Row" DISABLED
onClick="removeRow(this.form)"> at index:
<SELECT NAME="deleteIndex">
<OPTION VALUE="0">0
</SELECT></TD>
</TR>
</TABLE>
</FIELDSET>
<FIELDSET>
<LEGEND>Add/Remove THEAD and TFOOT</LEGEND>
<TABLE WIDTH="100%" CELLSPACING=20><TR>
<TD><INPUT TYPE="button" NAME="addTHEAD" VALUE="Insert THEAD"
onClick="insertTHEAD(this.form)"><BR>
<INPUT TYPE="button" NAME="deleteTHEAD" VALUE="Remove THEAD" DISABLED
onClick="removeTHEAD(this.form)">
</TD>
<TD><INPUT TYPE="button" NAME="addTFOOT" VALUE="Insert TFOOT"
onClick="insertTFOOT(this.form)"><BR>
<INPUT TYPE="button" NAME="deleteTFOOT" VALUE="Remove TFOOT" DISABLED
onClick="removeTFOOT(this.form)">
</TD>
</TR>
</TABLE>
</FIELDSET>
<FIELDSET>
<LEGEND>Add/Remove Caption</LEGEND>
<TABLE WIDTH="100%" CELLSPACING=20><TR>
<TD><INPUT TYPE="button" NAME="addCaption" VALUE="Add Caption"
onClick="insertCaption(this.form)"></TD>
<TD>Text: <INPUT TYPE="text" NAME="captionText" SIZE=40 VALUE="Sample Caption">
<TD><INPUT TYPE="button" NAME="deleteCaption" VALUE="Delete Caption" DISABLED
onClick="removeCaption(this.form)"></TD>
<TD><INPUT TYPE="button" NAME="Prendi valori" VALUE="get"
onClick="GetCellValues()"></TD>
</TR>
</TABLE>
</FIELDSET>
<!-- PNG<input type="checkbox" id="png" value="false" />-->
\t <input type="button" value="Draw Chart" onclick="mostra(),setDati()" />
<!--Div that will hold the pie chart-->
\t
\t \t <div id="chart_div"></div>
</FORM>
<HR>
<TABLE ID="myTABLE" CELLPADDING=10 BORDER=1>
<TBODY>
</TABLE>
\t </BODY>
</HTML>
你应该在JSFiddle中设置它，以便我们可以测试和使用它。 –
我将链接添加到JSFiddle。 – macco