嵌套的ASP驗證

Question

我有一個表單要求四種類型的捐贈。用戶必須選擇四項捐贈中的一項。另外，根據他們選擇哪一個，他們需要填寫相鄰的字段（金額）。

如果A1被填充在B1必須
填充如果A2被填充在B2必須填寫
如果A3被填充在B3必須填寫
如果A4被填充在B4必須填寫

...但至少A的一個必須填寫

Answer 1

假設你ASP驗證後是（即後門柱），你可以做這樣的事情：

dim A1 : A1 = trim(request.form("A1")) 
dim A2 : A2 = trim(request.form("A2")) 
dim A3 : A3 = trim(request.form("A3")) 
dim A4 : A4 = trim(request.form("A4")) 

dim B1 : A1 = trim(request.form("B1")) 
dim B2 : B2 = trim(request.form("B2")) 
dim B3 : B3 = trim(request.form("B3")) 
dim B4 : B4 = trim(request.form("B4")) 

dim ValidationError : ValidationError = "" 

if A1 <> "on" and A2 <> "on" and A3 <> "on" and A4 <> "on" then 
    ValidationError = "Please select at least one option" 
else 
    if A1 = "on" and B1 = "" then ValidationError = "You selected A1, please complete the amount" 
    if A2 = "on" and B2 = "" then ValidationError = "You selected A2, please complete the amount" 
    if A3 = "on" and B3 = "" then ValidationError = "You selected A3, please complete the amount" 
    if A4 = "on" and B4 = "" then ValidationError = "You selected A4, please complete the amount" 
end if 

if ValidationError <> "" then 
    response.write(ValidationError) 
else 
    '#### All OK 
end if 

但是像這樣的東西通常會在javascript（客戶端 - 預發佈）驗證中變得很滑。