Question

protected void ButtonDelete_Click(object sender, EventArgs e)

protected void ButtonDelete_Click(object sender, EventArgs e)
{
string ids = Request.Form["CheckboxSelect"];
// string sql = "update t_GuestOrder set isdelete=3 where id in(" + ids + ") and status=5";
string sql = "delete from t_GuestOrder where isdelete=1 and status=5 and Id in (" + ids + ") ";

Database db = new Database();
int n = db.ExecuteSQL(sql);
if (n == 0)
{
ScriptManager.RegisterStartupScript(this.GetType(), "", "alert('只有作废订单才能删除！')", true);
//response.write("<script>alert('只有作废订单才能删除')</script>");
}
else
{
BindGriview();
}
}
ScriptManager.RegisterStartupScript(this.GetType(), "", "alert('只有作废订单才能删除！')", true);
进了这个地方 但没出提示,

Answer 1

if (n == 0)
{
ScriptManager.RegisterStartupScript(this.GetType(), "", "alert('只有作废订单才能删除！')", true);
//response.write("<script>alert('只有作废订单才能删除')</script>");
}
这个应该是无返回值时才显示吧?
还有else里的BindGriview（）怎么个情况··
逻辑不对啊

Answer 2

alert("...") 需要加上 <script>标记