asp.Net的ListView/GridView的數據綁定錯誤

Question

我試圖用VB在ASP中使用GridView和我得到的關於內容的錯誤消息。我做了一些研究，並重新格式化數據源被引用，但仍不能似乎得到GridView控件生成的XML文檔。

錯誤消息：「ID爲‘GridView1’沒有任何屬性或屬性從中生成列的GridView的數據源，確保您的數據源有內容。」

XML片段：

<?xml version="1.0" encoding="UTF-8" standalone="yes"?> 
<financialExpenditures2> 
    <expenses> 
     <expense Reporting="" Obj="val" Sub-Obj="" Doc_Code="val" Doc_Dep="val" Document_ID="val" Record_Date="val" FY="val" BFY="val" Acct_Per="val" Fund="val" Department="val" Unit="val" Sub-unit="" Activity="val" Vendor_Code="" Vendor_Name="" Check_Num="" Vendor_Invoice_Num="" Posting_Code="val" Sub_unit="" Posting_Amt="val" Comm_Ln_Num="val" Acct_Ln_Num="val" Accounting_Line_Desc="longer string val"/> 
    </expenses> 
</financialExpenditures> 

查看頁面代碼

<%@ Page Title="Home Page" Language="vb" MasterPageFile="~/Site.Master" AutoEventWireup="false" 
CodeBehind="Default.aspx.vb" Inherits="WebApplication2._Default" %> 
<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent"> 
</asp:Content> 
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent"> 
    <h2> 
     Welcome to ASP.NET! 
    </h2> 
    <form id="form1" runat="server"> 
    <div> 
     <asp:GridView ID="GridView1" runat="server" DataSourceID="conversionBook2"> 
     </asp:GridView> 
     <asp:XmlDataSource ID="conversionBook2" runat="server" 
      DataFile="~/conversionBook2.xml"></asp:XmlDataSource> 
    </div>  
    </form> 
</asp:Content> 

Answer 1

它看起來像你的XML文件是不完全正確。除去financialExpenditures標籤得到的東西的工作。

<?xml version="1.0" encoding="UTF-8" standalone="yes"?> 
<expenses> 
    <expense Reporting="" Obj="val" Sub-Obj="" Doc_Code="val" Doc_Dep="val" Document_ID="val" Record_Date="val" FY="val" BFY="val" Acct_Per="val" Fund="val" Department="val" Unit="val" Sub-unit="" Activity="val" Vendor_Code="" Vendor_Name="" Check_Num="" Vendor_Invoice_Num="" Posting_Code="val" Sub_unit="" Posting_Amt="val" Comm_Ln_Num="val" Acct_Ln_Num="val" Accounting_Line_Desc="longer string val"/> 
</expenses>