Asp.net，Response.Redirect無法正常工作。爲什麼？

Question

在我的應用程序中，我試圖在將記錄插入到我的數據源後重定向到另一個頁面。插入部分工作正常，但頁面從不重定向。有任何想法嗎？這裏是我當前的代碼：

ASPX

<asp:FormView ID="FormView1" runat="server" DataKeyNames="RecapID" 
    DataSourceID="RecapDataSource" DefaultMode="Insert"> 
     <InsertItemTemplate> 
      Recap Date: 
      <asp:TextBox ID="RecapDateTextBox" runat="server" 
       Text='<%# Bind("RecapDate") %>' Width="80px" /><asp:RequiredFieldValidator runat="server" id="RequiredFieldValidator1" ControlToValidate="RecapDateTextBox" ErrorMessage="*" display="Dynamic" /> 
      <asp:Button ID="InsertButton" runat="server" CausesValidation="True" 
       CommandName="Insert" Text="Create"/> 
     </InsertItemTemplate> 
     </asp:FormView> 
<asp:SqlDataSource ID="RecapDataSource" runat="server" 
    ConflictDetection="CompareAllValues" 
    ConnectionString="<%$ ConnectionStrings:ConnectionString %>" 
    InsertCommand="INSERT INTO [ftsrms_Recap] ([RecapDate]) VALUES (@RecapDate) SELECT @NewRecapID = SCOPE_IDENTITY()" 
    OldValuesParameterFormatString="original_{0}"> 
    <InsertParameters> 
     <asp:Parameter DbType="Date" Name="RecapDate" /> 
     <asp:Parameter Direction="Output" Name="NewRecapID" Type="Int32" /> 
    </InsertParameters> 
</asp:SqlDataSource> 

ASPX.VB

Protected Sub RecapDataSource_Inserted(sender As Object, e As System.Web.UI.WebControls.SqlDataSourceSelectingEventArgs) 

    'Read the value of the @NewProductID OUTPUT parameter 
    Dim newRecapID As Integer = Convert.ToInt32(e.Command.Parameters("@NewRecapID").Value) 

    Response.Redirect("Profile.aspx?") 

End Sub 

Answer 1

您需要將事件處理程序添加到RecapDataSource：

oninserted =」 RecapDataSour ce_Inserted」

所以，你的aspx代碼變爲：

<asp:FormView ID="FormView1" runat="server" DataKeyNames="RecapID" 
    DataSourceID="RecapDataSource" DefaultMode="Insert"> 
     <InsertItemTemplate> 
      Recap Date: 
      <asp:TextBox ID="RecapDateTextBox" runat="server" 
       Text='<%# Bind("RecapDate") %>' Width="80px" /><asp:RequiredFieldValidator runat="server" id="RequiredFieldValidator1" ControlToValidate="RecapDateTextBox" ErrorMessage="*" display="Dynamic" /> 
      <asp:Button ID="InsertButton" runat="server" CausesValidation="True" 
       CommandName="Insert" Text="Create"/> 
     </InsertItemTemplate> 
     </asp:FormView> 
<asp:SqlDataSource ID="RecapDataSource" runat="server" 
    oninserted="RecapDataSource_Inserted" 
    ConflictDetection="CompareAllValues" 
    ConnectionString="<%$ ConnectionStrings:ConnectionString %>" 
    InsertCommand="INSERT INTO [ftsrms_Recap] ([RecapDate]) VALUES (@RecapDate) SELECT @NewRecapID = SCOPE_IDENTITY()" 
    OldValuesParameterFormatString="original_{0}"> 
    <InsertParameters> 
     <asp:Parameter DbType="Date" Name="RecapDate" /> 
     <asp:Parameter Direction="Output" Name="NewRecapID" Type="Int32" /> 
    </InsertParameters> 
</asp:SqlDataSource> 

編輯：

也會改變這樣的：

Protected Sub RecapDataSource_Inserted(sender As Object, e As System.Web.UI.WebControls.SqlDataSourceSelectingEventArgs) 

    'Read the value of the @NewProductID OUTPUT parameter 
    Dim newRecapID As Integer = Convert.ToInt32(e.Command.Parameters("@NewRecapID").Value) 

    Response.Redirect("Profile.aspx?") 

End Sub 

這樣：

Protected Sub RecapDataSource_Inserted(sender As Object, e As System.Web.UI.WebControls.SqlDataSourceStatusEventArgs) 

    'Read the value of the @NewProductID OUTPUT parameter 
    Dim newRecapID As Integer = Convert.ToInt32(e.Command.Parameters("@NewRecapID").Value) 

    Response.Redirect("Profile.aspx?") 

End Sub 

如果仍然不工作，刪除此行（或意見），然後再試一次：

Dim newRecapID As Integer = Convert.ToInt32(e.Command.Parameters("@NewRecapID").Value) 

可能它上升例外。