innerhtml如何应用?
请问下为什么这段代码运行之后没有显示结果?麻烦帮忙解决下……
<%@ Page Language="C#" AutoEventWireup="true" %>
<html>
<script runat="server" >
protected void AddButton_Click(object sender, EventArgs e)
{
int Answer;
Answer = Convert.ToInt32(Value1.Value) + Convert.ToInt32(Value2.Value);
AnswerMessage.InnerHtml = Answer.ToString();
}
</script>
<body>
<form method="post" enctype="application/x-www-form-urlencoded" id="myform" action="Default.aspx">
<h3>
htmlform控件示例</h3>
<table>
<tr>
<td colspan="5">
在文本框中输入整数值<br />
单击加按钮执行加法运算<br />
单击复位按钮复位文本框。
</td>
</tr>
<tr align="center">
<td>
<input id="Value1" type="text" size="2" maxlength="3" value="1" runat="server" />
</td>
<td>
+
</td>
<td>
<input id="Value2" type="text" size="2" maxlength="3" value="1" runat="server" />
</td>
<td>
=
</td>
<td>
<span id="AnswerMessage" runat="server" ></span>
</td>
</tr>
<tr align="center">
<td colspan="4">
<input type="submit" name="AddButton" value="加" onserverclick="AddButton_Click" runat="server" />
<input type="reset" name="AddButton" value="复位" runat="server" />
</td>
</tr>
</table>
</form>
</body>
</html>