我有一个表，其中每个td的id都是“A0XJ”形式，其中x和j的值表示行号和列号。我想以编程方式更新表数据内部文本的值（我将从数据表中获取的值。
<table border=1>
<tr>
<td id="A011"></td>
<td id="A012"/><td>
<td id="A013"></td>
<td id="A014"></td>
<td id="A015"></td>
</tr>
<tr>
<td id="A021"></td>
<td id="A022"></td>
<td id="A023"></td>
<td id="A024"></td>
<td id="A025"></td>
</tr>
</table>
在c＃代码中，我构建了一个循环，以便自动填充所有数据。我遇到的问题是我不确定我应该使用的数据类型。我正在使用字符串（绝对不是正确的类型） 我收到以下错误'字符串不包含InnerText的定义，并且没有扩展方法innertext：
protected void FILL_DATA(object sender, EventArgs e)
{
DataTable IACS = new DataTable();
IACS= GenerateTransposedTableinCsharp(generateIacs());
for (int i = 6; i <= 8; i++)
{
String rowtext ="A0" + i;
for (int j = 1; j <= 14; j++)
{
String text = rowtext + j;
text.InnerText= IACS.Rows[i-5].Field<string>(j);
}
}
}
答案 0 :(得分：1)
如果我正确理解了您的问题，则无法在表格中找到格式正确的 <!-- === === BODY COPY === === -->
<h2>Watch now to investigate.</h2>
<div id="popUpVideoBackground"></div>
<div id="popUpVideoContainer">
<div id="videoCaption"></div>
<h4 id="videoTime"></h4>
<div><a href="javascript:closePopUpVideo()"><img id="closeIcon" src="images/favicons/close_icon.png" /></a> <video id="popUpVideo" width="640" height="480" controls="controls"><source src="" type="video/mp4" /> </video>
</div>
</div>
<!-- === === Video 1 === === -->
<div class="imgContainer">
<a class="ImageLink" href="javascript:playTrailer('http://cdn.sciex.com/BLT_Tease_pt1.mp4','Mission-X underway Part 1')">
<img class="overlayIcon" src="images/favicons/playBtn_40x36.jpg" />
<img class="videoImage" src="Images/campaigns/food/BLTteaser1_200x140.jpg" />
</a> </div>
<div>
<script type="text/javascript">
$(document).ready(function () {
function playTrailer(video, title) {
document.getElementById("videoCaption").innerHTML=title;
document.getElementById("popUpVideoBackground").style.display="inline";
document.getElementById("popUpVideo").style.display="inline";
document.getElementById("closeIcon").style.display="inline";
document.getElementById("popUpVideoContainer").style.display="inline";
document.getElementById("popUpVideo").setAttribute('src',video);
document.getElementById("popUpVideo").setAttribute('type',"video/mp4");
document.getElementById("popUpVideo").load();
document.getElementById("popUpVideo").play();
if(navigator.userAgent.indexOf("Chrome") != -1 )
{
document.getElementById("popUpVideo").style.marginTop="0px";
document.getElementById("popUpVideo").style.height="460px";
document.getElementById("popUpVideoContainer").style.height="550px";
}
if((navigator.userAgent.indexOf("MSIE") != -1 ) || (!!document.documentMode == true )) //IF IE > 10
{
document.getElementById("popUpVideo").style.marginTop="100px";
document.getElementById("popUpVideo").style.height="480px";
document.getElementById("popUpVideoContainer").style.height="630px" ;
}
}
function closePopUpVideo(){
document.getElementById("popUpVideoBackground").style.display="none";
document.getElementById("popUpVideo").style.display="none";
document.getElementById("popUpVideoContainer").style.display="none";
document.getElementById("closeIcon").style.display="none";
document.getElementById("popUpVideo").pause();
}
字符串＆＃34; A0XJ＆＃34;其中X是行，J是列。
然后你的问题是你没有正确构建你的字符串。通过内循环或外循环中的每次迭代，都没有正确更新text。
以下是我的解决方案
text答案 1 :(得分：1)
如果要将table元素视为可以从c＃代码更新的控件，则需要添加runat="server"属性并为表提供ID：
<table border="1" id="tableIACS" runat="server">
<tr>
<td id="A011"></td>
<td id="A012"></td>
<td id="A013"></td>
<td id="A014"></td>
<td id="A015"></td>
</tr>
<tr>
<td id="A021"></td>
<td id="A022"></td>
<td id="A023"></td>
<td id="A024"></td>
<td id="A025"></td>
</tr>
</table>
然后，您可以使用FindControl()
protected void FILL_DATA(object sender, EventArgs e)
{
DataTable IACS = new DataTable();
IACS = GenerateTransposedTableinCsharp(generateIacs());
for (int i = 6; i <= 8; i++)
{
String rowtext = "A0" + i;
for (int j = 1; j <= 14; j++)
{
String text = rowtext + j;
HtmlTableCell cell = tableIACS.FindControl(text) as HtmlTableCell;
if (cell != null)
cell.InnerText = IACS.Rows[i - 5].Field<string>(j);
}
}
}