<%@ Page Language="C#" ContentType="text/html" ResponseEncoding="gb2312" %>
<%@ Import namespace="System"%>
<script language="c#" runat="server">public void page_load(object sender,EventArgs e)
{
if(!IsPostBack)
{
showtable();
}
}
private void bt_Click(object sender,EventArgs e)
{
lb.Text = ((TextBox)tbl.Rows[1].Cells[1].Controls[0]).Text;
}
private void showtable()
{
for(int i=0;i<10;i++)
{
TableRow r = new TableRow();
for(int j=0;j<10;j++)
{
TableCell c = new TableCell();
c.Controls.Add(new LiteralControl("("+i.ToString()+","+j.ToString()+")"));
r.Cells.Add(c);
TextBox tb = new TextBox();
c.Controls.AddAt(0,tb);
tb.BorderStyle = BorderStyle.Groove;
}
tbl.Rows.Add(r);
}
}</script>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
</head>
<body>
<form runat="server"><div align="center">
<asp:Table runat="server" id=tbl></asp:Table><br />
<asp:Button runat="server" id=bu OnClick="bt_Click" Text="OK"></asp:Button><br><br>
<asp:Label runat="server" ID="lb"></asp:Label></div>
</form>
</body>
</html>
为啥我执行后会出现这样的错误提示:
指定的参数已超出有效值的范围。参数名: index
说明: 执行当前 Web 请求期间,出现未处理的异常。请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息。
<%@ Import namespace="System"%>
<script language="c#" runat="server">public void page_load(object sender,EventArgs e)
{
if(!IsPostBack)
{
showtable();
}
}
private void bt_Click(object sender,EventArgs e)
{
lb.Text = ((TextBox)tbl.Rows[1].Cells[1].Controls[0]).Text;
}
private void showtable()
{
for(int i=0;i<10;i++)
{
TableRow r = new TableRow();
for(int j=0;j<10;j++)
{
TableCell c = new TableCell();
c.Controls.Add(new LiteralControl("("+i.ToString()+","+j.ToString()+")"));
r.Cells.Add(c);
TextBox tb = new TextBox();
c.Controls.AddAt(0,tb);
tb.BorderStyle = BorderStyle.Groove;
}
tbl.Rows.Add(r);
}
}</script>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
</head>
<body>
<form runat="server"><div align="center">
<asp:Table runat="server" id=tbl></asp:Table><br />
<asp:Button runat="server" id=bu OnClick="bt_Click" Text="OK"></asp:Button><br><br>
<asp:Label runat="server" ID="lb"></asp:Label></div>
</form>
</body>
</html>
为啥我执行后会出现这样的错误提示:
指定的参数已超出有效值的范围。参数名: index
说明: 执行当前 Web 请求期间,出现未处理的异常。请检查堆栈跟踪信息,以了解有关该错误以及代码中导致错误的出处的详细信息。
// if(!IsPostBack)
// {
showtable();
// }
試一下,就明白了
lb.Text = tbl.Rows.Count.ToString();
lb.Text += ((TextBox)tbl.Rows[1].Cells[1].Controls[0]).Text;