Response.Redirect的使用查詢字符串

Question

好了，所以我只是寫我自己的「圖書添加到數據庫」 ASP.net頁，看起來像這樣：

<div class="addbook"><br />If you feel that we&#39;ve forgotten a book 
that you love, please fill out this form 
below to help us keep the site fresh and dynamic! 
<h3>Title:</h3><asp:TextBox ID="tb_booktitle" runat="server"></asp:TextBox> 
<h3>Author:</h3><asp:TextBox ID="tb_bookauthor" runat="server"></asp:TextBox> 
<h3>Publication Date:</h3><asp:TextBox ID="tb_bookpubyear" runat="server" ></asp:TextBox> <asp:CompareValidator 
ID="CompareValidatorTextBox1" runat="server" 
ControlToValidate="tb_bookpubyear" 
Type="Date" 
Operator="DataTypeCheck" 
ErrorMessage="Date must be in the DD/MM/YYYY format)" ForeColor="Red" 
/> 
<h3>Number of Pages:</h3><asp:TextBox ID="tb_bookpages" runat="server"></asp:TextBox><asp:RangeValidator ID="RangeValidator1" runat="server" 
    ControlToValidate="tb_bookpages" 
    ErrorMessage="Please enter a number." ForeColor="Red" 
    MaximumValue="9999999" MinimumValue="1" SetFocusOnError="True"></asp:RangeValidator> 


<h3>Publisher:</h3><asp:TextBox ID="tb_publisher" runat="server"></asp:TextBox> 
<h3>Book Cover:</h3> 
<asp:FileUpload ID="fu_picture" runat="server" /> 
<h3>Your Rating:</h3> 
<p>  
    <asp:RadioButtonList ID="rbl_Stars" runat="server" 
    RepeatDirection="Horizontal" Width="142px"> 
    <asp:ListItem>1</asp:ListItem> 
    <asp:ListItem>2</asp:ListItem> 
    <asp:ListItem>3</asp:ListItem> 
    <asp:ListItem>4</asp:ListItem> 
    <asp:ListItem>5</asp:ListItem> 
</asp:RadioButtonList> 
</p> 
<p> 
    <asp:Button ID="btn_submission" runat="server" Text="Upload Book!" /> 
</p> 

而後面的代碼：

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load 

End Sub 

Protected Sub btn_submission_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btn_submission.Click 
    Dim myGUID = Guid.NewGuid() 

    Dim newFileName As String = myGUID.ToString() & ".jpg" 
    Dim fileLocationOnServerHardDisk = Request.MapPath("img/thumb") & "/" & newFileName 
    fu_picture.SaveAs(fileLocationOnServerHardDisk) 
    Dim oleDbConn As New OleDb.OleDbConnection(ConfigurationManager.ConnectionStrings("BookMeetConnString").ConnectionString) 
    Dim SqlString As String = "Insert into booklist(Title,Author,PublicationDate,Pages,Publisher,imgurl,AverageRating) 
Values (@f1,@f2,@f3,@f4,@f5,@f6,@f7)" 
    Dim cmd As OleDbCommand = New OleDbCommand(SqlString, oleDbConn) 
    cmd.CommandType = CommandType.Text 
    cmd.Parameters.AddWithValue("@f1", tb_booktitle.Text) 
    cmd.Parameters.AddWithValue("@f2", tb_bookauthor.Text) 
    cmd.Parameters.AddWithValue("@f3", tb_bookpubyear.Text) 
    cmd.Parameters.AddWithValue("@f4", tb_bookpages.Text) 
    cmd.Parameters.AddWithValue("@f5", tb_publisher.Text) 
    cmd.Parameters.AddWithValue("@f6", "img/thumb/" & newFileName) 
    cmd.Parameters.AddWithValue("@f7", rbl_Stars.SelectedValue) 
    oleDbConn.Open() 
    cmd.ExecuteNonQuery() 
    Response.Redirect("detail.aspx?ID={0}") 

End Sub 

Protected Sub rbl_Stars_SelectedIndexChanged(ByVal sender As Object, ByVal e As EventArgs) Handles rbl_Stars.SelectedIndexChanged 

End Sub 
End Class 

正如您在上面的代碼中看到的那樣，一旦與數據庫建立連接，我想重定向到detail.aspx（這是一個顯示數據庫和關聯內容的單個記錄的頁面）使用查詢字符串來顯示剛添加的記錄。但我收到如下錯誤：

Input string was not in a correct format. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.FormatException: Input string was not in a correct format.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[FormatException: Input string was not in a correct format.]
System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) +10722195 System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) +145
System.String.System.IConvertible.ToInt32(IFormatProvider provider) +46 System.Convert.ChangeType(Object value, TypeCode typeCode, IFormatProvider provider) +297
System.Web.UI.WebControls.Parameter.GetValue(Object value, String defaultValue, TypeCode type, Boolean convertEmptyStringToNull, Boolean ignoreNullableTypeChanges) +126
System.Web.UI.WebControls.Parameter.GetValue(Object value, Boolean ignoreNullableTypeChanges) +63
System.Web.UI.WebControls.Parameter.get_ParameterValue() +40
System.Web.UI.WebControls.ParameterCollection.GetValues(HttpContext context, Control control) +247
System.Web.UI.WebControls.SqlDataSourceView.InitializeParameters(DbCommand command, ParameterCollection parameters, IDictionary exclusionList) +257 System.Web.UI.WebControls.SqlDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) +589
System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +21
System.Web.UI.WebControls.DataBoundControl.PerformSelect() +138
System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +30
System.Web.UI.WebControls.GridView.DataBind() +4
System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +105 System.Web.UI.WebControls.CompositeDataBoundControl.CreateChildControls() +75 System.Web.UI.Control.EnsureChildControls() +83 System.Web.UI.Control.PreRenderRecursiveInternal() +42
System.Web.UI.Control.PreRenderRecursiveInternal() +168
System.Web.UI.Control.PreRenderRecursiveInternal() +168
System.Web.UI.Control.PreRenderRecursiveInternal() +168
System.Web.UI.Control.PreRenderRecursiveInternal() +168
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +974

我該如何去實現我想要做的事情？

Answer 1

爲什麼不創建一個具有您的新插入書的ID的輸出中參數的存儲過程，然後執行以下操作

If outputparam.value isnot nothing then 
    Response.Redirect(String.Format("detail.aspx?ID={0}",outputparam.value) 
end if 

請看看這個網址以獲得更多信息。

Input and Output Parameters, and Return Values