Question

asp.net删除数据的时候，要弹出删除确认对话框，询问是否删除，这怎么做？

怎么加删除确认的代码？？？ protected void Button2_Click(object sender, EventArgs e)    {                   SqlConnection con = new SqlConnection("Server=.\\SQLEXPRESS;uid=sa;pwd=59365615;Database=Attendance Manage");            con.Open();            string sqlstr7 = "drop table " + DropDownList1.SelectedValue;            SqlCommand cmd = new SqlCommand(sqlstr7, con);            cmd.ExecuteNonQuery();                    Response.Write("<script>alert('删除成功！')</script>");    } winform里我知道是这样的： if (MessageBox.Show("是否要删除？", "删除确认", MessageBoxButtons.YesNo, MessageBoxIcon.Question, MessageBoxDefaultButton.Button1) == DialogResult.Yes) {}

Answer 1

在Button2控件中加上 onClientClick='return Confirm("是否要删除？")'

Answer 2

在BUTTON点击事件里加消息框判断返回值