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我正在使用ASP.NET/C#中的ASMX服務。我的服務返回了我的WebMethods的的一些的適當數據，但不是全部。有趣的部分是所有的WebMethods都非常相似。ASMX服務並不總是返回數據
這裏有一個總是返回數據：
[WebMethod]
public AccountItem[] GetAllAccounts()
{
AccountItem[] AccountItems = HttpContext.Current.Cache[AccountItemsCacheKey] as AccountItem[];
if (AccountItems == null)
{
List<AccountItem> items = new List<AccountItem>();
using (SqlManager sql = new SqlManager(SqlManager.GetSqlDbiConnectionString()))
{
using (SqlDataReader reader = sql.ExecuteReader("SELECT A.Account_Id, A.Customer_Id, C.Last_Name + ', ' + C.First_Name AS CustomerName, A.[Status], AT.Name AS AcctType, A.Employee_Id, A.Initial_Balance, A.Interest_Rate, '$'+CONVERT(varchar(50), A.Balance, 1) AS Balance FROM Account A JOIN Account_Type AT ON A.Account_Type_Id=AT.Account_Type_Id JOIN Customer C ON A.Customer_Id=C.Customer_Id WHERE [Status]=1"))
{
while (reader.Read())
{
AccountItem item = new AccountItem();
item.AccountId = (int)reader["Account_Id"];
item.CustomerId = (int)reader["Customer_Id"];
item.CustomerName = (string)reader["CustomerName"];
item.AccountStatus = (bool)reader["Status"];
item.AccountType = (string)reader["AcctType"];
item.InitialBalance = (decimal)reader["Initial_Balance"];
item.InterestRate = (decimal)reader["Interest_Rate"];
item.Balance = (string)reader["Balance"];
items.Add(item);
}
reader.Close();
}
}
HttpContext.Current.Cache.Add(AccountItemsCacheKey, items.ToArray(), null, DateTime.Now.AddMinutes(CacheDuration), Cache.NoSlidingExpiration, CacheItemPriority.Default, null);
return items.ToArray();
}
else
{
return AccountItems;
}
}
而且這裏有一個從不返回數據：
[WebMethod]
public TransactionItem[] GetAllTransactions()
{
TransactionItem[] tranItems = HttpContext.Current.Cache[TransactionItemsCacheKey] as TransactionItem[];
if (tranItems == null)
{
List<TransactionItem> items = new List<TransactionItem>();
using (SqlManager sql = new SqlManager(SqlManager.GetSqlDbiConnectionString()))
{
using (SqlDataReader reader = sql.ExecuteReader("SELECT [Transaction_Id],[Account_Id],[Amount],[DateTime],[Comment],TT.[Name] AS [TransType],[Flagged],[Employee_Id],[Status] FROM [Transaction] T JOIN [Trans_Type] TT ON T.Trans_Type_Id=TT.Trans_Type_Id"))
{
while (reader.Read())
{
TransactionItem item = new TransactionItem();
item.TransactionId = (int)reader["Transaction_Id"];
item.AccountId = (int)reader["Account_Id"];
item.Amount = (decimal)reader["Amount"];
item.Timestamp = (DateTime)reader["DateTime"];
item.Comment = (string)reader["Comment"];
item.TransType = (string)reader["TransType"];
item.Flagged = (bool)reader["Flagged"];
item.EmployeeId = (int)reader["Employee_Id"];
item.Status = (bool)reader["Status"];
items.Add(item);
}
reader.Close();
}
}
HttpContext.Current.Cache.Add(TransactionItemsCacheKey, items.ToArray(), null, DateTime.Now.AddMinutes(CacheDuration), Cache.NoSlidingExpiration, CacheItemPriority.Default, null);
return items.ToArray();
}
else
{
return tranItems;
}
}
正如你可以看到，他們幾乎是相同的。這兩個SQL查詢都會返回大量記錄，但只有GetAllAccounts() WebMethod實際上將該數據返回。
這是我怎麼顯示通過從GetAllAccounts()回數據，工作正常：
@{
Layout = "~/Shared/_Layout.cshtml";
Page.Title = "Accounts";
Page.Header = "BankSite Mobile - Accounts";
var svc = IntranetService.GetAllAccounts();
}
<div data-role="content">
<ul data-role="listview" data-inset="true" data-theme="c">
@foreach(var item in svc){
<li>
<h3><a href="[email protected]">Account #@item.AccountId.ToString() (@item.AccountType)</a></h3>
<p>Customer: @item.CustomerName</p>
<p>Account Balance: @item.Balance</p>
</li>
}
</ul>
</div>
然而，這並不正常工作，但它的幾乎是完全相同的代碼：
@{
Layout = "~/Shared/_Layout.cshtml";
Page.Title = "Customers";
Page.Header = "BankSite Mobile - Customers";
var svc = IntranetService.GetAllCustomers();
}
<div data-role="content">
<ul data-role="listview" data-inset="true" data-theme="c">
@foreach(var item in svc){
<li>
<h3><a href="[email protected]">Account #@item.CustomerId.ToString() (@item.CustomerId)</a></h3>
<p>Customer: @item.CustomerId</p>
<p>Account Balance: @item.CustomerId</p>
</li>
}
</ul>
</div>
...所以基本上我很困惑。我不明白爲什麼數據沒有按照預期從非工作的WebMethod（GetAllCustomers()）返回。我錯過了什麼？
如果你設置斷點通過GetAllTransactions（）所有的方式，TransactionItem []填充？ – 2011-02-03 03:35:26