读出Cooike出错
两个按钮,第一个按钮写入Cooike,第二个按钮读出Cooike,如果多一个判断Cooike是否为空,就会出错.如果不加if (Request.Cookies[ "name "] == null),不出错!
protected void btnIn_Click(object sender, EventArgs e)
{
HttpCookie hc = new HttpCookie( "myCookie ");
hc.Values[ "Name "] = "this is the name ";
hc.Values[ "Age "] = "23 ";
hc.Values[ "Date "] = System.DateTime.Now.ToString();
Response.Cookies.Add(hc);
Response.Write( "写入成功! ");
}
protected void btnOut_Click(object sender, EventArgs e)
{
if (Request.Cookies[ "name "] == null)
{
Response.Write( "error ");
}
else
{
HttpCookie hcGet = Request.Cookies[ "myCookie "];
Response.Write(hcGet.Values[ "Name "] + " <br> " + hcGet.Values[ "Age "] + " <br> " + hcGet.Values[ "Date "]);
}
}
[解决办法]
if (Request.Cookies[ "myCookie "]== null)
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最新版本：20070212
http://www.cnblogs.com/feiyun0112/archive/2006/09/20/509783.html
