Project completed, in the test acceptance, the user suddenly raised, you can change the results of the query, easy to print. Hide engineering errors. But this time ask, compare headache, later, think or use the foreground code, so, as long as in the project JS file, add the following functions, it can be solved.
Copy Code code as follows:
/*
When the page is loaded, the click events are incremented for each TD so that you do not have to make changes to each page.
*/
function rewritable ()
{
var Tbmian=document.getelementbyid ("Tbmain");
for (Var i=0;i<tbmain.rows.length;i++)
{
for (Var j=0;j<tbmain.rows[i].cells.length;j++)
{
/*
Add Click event Properties. The SetAttribute method cannot be used here.
*/
Tbmain.rows[i].cells[j].onclick=addobjoftext;
}
}
}
/*
Click the event to update the TD content to a DIV, which loads a text for the user to enter the value of the new TD.
A OK button, a Cancel button, to save or cancel the user's input.
A hidden that saves the value of the TD before the user enters the new value, so that the user can recover when it is canceled.
*/
function Addobjoftext ()
{
var Tdcag=document.getelementbyid ("Tdcag");
if (tdcag!=null)
{
Return
}
var tdid=window.event.srcelement;
var Tdtxt=tdid.innertext;
var str= "<div id= ' tdcag ' ><input type= ' text ' id= ' txtid ' value= '" "+tdtxt+" ' > ";
str+= "<input type= ' button ' value= ' determines ' onclick= ' Changetdtext () ' >";
str+= "<input type= ' button ' value= ' Cancel ' onclick= ' canceltdchanged () ' >";
str+= "<input type= ' hidden ' id= ' tdinitvalue ' value= '" "+tdtxt+" ' > ";
str+= "</div>";
TDID.INNERHTML=STR;
}
/*
Cancels the change, assigns the hidden value to the TD
*/
function canceltdchanged ()
{
var Tdinitvalue=document.getelementbyid ("Tdinitvalue");
var Tdtxt=tdinitvalue.value;
var Tdid=document.getelementbyid ("Tdcag"). parentnode;
Tdid.innertext=tdtxt;
}
/*
Save user changes and assign text values to TD
*/
function Changetdtext ()
{
var Txtid=document.getelementbyid ("txtID");
var Tdid=document.getelementbyid ("Tdcag"). parentnode;
Tdid.innertext=txtid.value;
}
In this way, in the <body> of the page, add the OnLoad event, whose value is: rewritable (), as follows:
Copy Code code as follows:
<body onload= "rewritable ();" >
<table id= "Tbmain" style= "width:100%;" border= "1" >
<tr>
<td>11
</td>
<td>12
</td>
<td>13
</td>
</tr>
<tr>
<td>21
</td>
<td>22
</td>
<td>23
</td>
</tr>
<tr>
<td>31
</td>
<td>32
</td>
<td>33
</td>
</tr>
</table>
</body>
Thus, in each TD, a click event is added.
