为什么一直出现"异常详细信息: System.Web.HttpException: 响应在此上下文中不可用"
namespace test.test
{
public class caculate2 : System.Web.UI.Page
{
protected System.Web.UI.WebControls.TextBox txtA;
protected System.Web.UI.WebControls.TextBox txtB;
protected System.Web.UI.WebControls.Label labAdd;
protected System.Web.UI.WebControls.Label labSub;
protected System.Web.UI.WebControls.Button Button1;
private void Page_Load(object sender, System.EventArgs e)
{
}
private void Button1_Click(object sender, System.EventArgs e)
{
Caculate my = new Caculate();
my.x = int.Parse(txtA.Text.ToString());
my.y = int.Parse(txtB.Text.ToString());
my.Add();
my.Sub();
}
public void ListAdd(string a)
{
Response.Write(a);
Response.End();
labAdd.Text = a;
}
public void ListDel(string b)
{
labSub.Text = b;
}
}
public class Caculate
{
public int x,y,z;
caculate2 my2 = new caculate2();
public void Add()
{
z = x + y;
my2.ListAdd(z.ToString());
}
public void Sub()
{
z = x - y;
my2.ListDel(z.ToString());
}
}
}
为什么一直在
Response.Write(a);
这行提示:
异常详细信息: System.Web.HttpException: 响应在此上下文中不可用。