單擊URL時，存儲過程不呈現數據

Question

我的Web應用程序由單擊時從數據庫檢索信息的URL列表組成。應用程序的工作以及使用以下非存儲過程方法：

代碼：

Retrieve the connection string stored in the Web.config file. 
     Dim connectionString As [String] = ConfigurationManager.ConnectionStrings("dbName_dbConnectionString").ConnectionString 
     Dim connection As New SqlConnection(connectionString) 
     connection.Open() 

     Dim mySQLQuery As String 
     Dim vID As String 

     vID = Request.QueryString("submittalList") 

     mySQLQuery = "SELECT submittalsInfo.CategoryID, submittalsInfo.url, submittalsInfo.headerName, submittalsInfo.FileName FROM submittals INNER JOIN submittalsInfo ON submittals.CategoryID = submittalsInfo.CategoryID WHERE (submittalsInfo.CategoryID = submittals.CategoryID) AND submittalsInfo.CategoryID = '" & vID & "' AND submittalsInfo.isActive = '1' ORDER BY submittalsInfo.FileName" 

     Dim myCommand As New SqlCommand(mySQLQuery, connection) 

     Dim myReader1 As SqlDataReader = myCommand.ExecuteReader(CommandBehavior.CloseConnection) 

     While (myReader1.Read()) 
      showSubHeader.Text = myReader1.GetString(2).ToString + ":" 
      showurls.Text = showurls.Text + "<div>" + myReader1.GetString(1).ToString + "</div>" 

     End While 
     connection.Close() 

...我試圖使用產生的存儲過程相同的結果。以下是我的設置：

存儲過程：

ALTER PROCEDURE [dbo].[showSubmittals] 

AS 
Begin 
    SELECT submittalsInfo.CategoryID, submittalsInfo.url, submittalsInfo.headerName, submittalsInfo.FileName FROM submittals INNER JOIN submittalsInfo ON submittals.CategoryID = submittalsInfo.CategoryID WHERE (submittalsInfo.CategoryID = submittals.CategoryID) AND submittalsInfo.CategoryID = '" & vID & "' AND submittalsInfo.isActive = '1' ORDER BY submittalsInfo.FileName 
END 

...這裏是代碼我使用叫它：

'Retrieve the connection string stored in the Web.config file. 
    Dim connectionString As [String] = ConfigurationManager.ConnectionStrings("webname_dbConnectionString").ConnectionString 
    Dim connection As New SqlConnection(connectionString) 
    Dim myCommand As New SqlCommand() 
    myCommand.CommandType = CommandType.StoredProcedure 
    myCommand.CommandText = "showSubmittals" 
    myCommand.Connection = connection 
    Try 
     connection.Open() 
     Dim myReader1 As SqlDataReader = myCommand.ExecuteReader(CommandBehavior.CloseConnection) 

     While (myReader1.Read()) 
      showSubHeader.Text = myReader1.GetString(2).ToString + ":" 
      showurls.Text = showurls.Text + "<div>" + myReader1.GetString(1).ToString + "</div>" 

     End While 
    Catch ex As Exception 
     Throw ex 
    Finally 
     connection.Close() 
     connection.Dispose() 
    End Try 

...問題我遇到在單擊URL時，頁面（URL）不呈現結果。下面顯示了我的網址是怎麼設置的，我爲了顯示在頁面showSubmittals.aspx，其中包含後端代碼的結果（我的方法）我上面所解釋的：

<asp:HyperLink ID="HyperLink1" runat="server" Text="Accessories" NavigateUrl="~/showSubmittals.aspx?submittalList=1" CssClass="submittalsLinks" /> 

我能請得到一些關於如何使用存儲過程方法完成此任務的幫助？在此先感謝

Answer 1

您的存儲過程應該看起來如下。

ALTER PROCEDURE [dbo].[showSubmittals] 
@vid NVARCHAR (255) // Use appropriate datatype for parameter 
AS 
Begin 
SELECT submittalsInfo.CategoryID, submittalsInfo.url, submittalsInfo.headerName, submittalsInfo.FileName FROM submittals INNER JOIN submittalsInfo ON submittals.CategoryID = submittalsInfo.CategoryID WHERE (submittalsInfo.CategoryID = submittals.CategoryID) AND submittalsInfo.CategoryID = @vid AND submittalsInfo.isActive = '1' ORDER BY submittalsInfo.FileName 
END 

而你需要從代碼調用過程如下。

Dim connectionString As [String] = ConfigurationManager.ConnectionStrings("webname_dbConnectionString").ConnectionString 
Dim connection As New SqlConnection(connectionString) 

Dim vID As String 

vID = Request.QueryString("submittalList") 
Dim myCommand As New SqlCommand() 
myCommand.CommandType = CommandType.StoredProcedure 
myCommand.CommandText = "showSubmittals" 
myCommand.Parameters.Add ("@vid", vID) 
myCommand.Connection = connection 
Try 
    connection.Open() 
    Dim myReader1 As SqlDataReader = myCommand.ExecuteReader(CommandBehavior.CloseConnection) 

    While (myReader1.Read()) 
     showSubHeader.Text = myReader1.GetString(2).ToString + ":" 
     showurls.Text = showurls.Text + "<div>" + myReader1.GetString(1).ToString + "</div>" 
    End While 
Catch ex As Exception 
    Throw ex 
Finally 
    connection.Close() 
    connection.Dispose() 
End Try 

赦免語法錯誤。我從移動設備發佈此答案。