GridView控件绑定到XML | GridView控件绑定到XML

本文介绍了GridView控件绑定到XML的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我试图让被绑定到一个简单的XML文档的简单网格视图，但我一定是失去了一些东西，因为我不断收到错误消息：

I am trying to make a simple grid view that is binded to a simple xml document but I must be missing something since I am keep getting error message:

与ID为GridView的数据源
  GridView1没有任何
  属性或从中属性
  生成列。确保您的
  数据源有内容。

code

<asp:GridView ID="GridView1" runat="server" DataSourceID="XmlDataSource1">
    <Columns>
        <asp:BoundField DataField="id" HeaderText="ID" SortExpression="id" />
    </Columns>
</asp:GridView>
<asp:XmlDataSource ID="XmlDataSource1" runat="server"
    DataFile="Notifications.xml" XPath="/data/node"></asp:XmlDataSource>

XML

<?xml version="1.0" encoding="utf-8" ?>
<data>
  <node>
    <id>1096</id>
    <name>About Us</name>
    <date>21/12/2009 17:03:43</date>
    <user id="1">writer</user>
  </node>
  <node>
    <id>1099</id>
    <name>News</name>
    <date>21/12/2009 17:03:47</date>
    <user id="1">writer</user>
  </node>
  <node>
    <id>1098</id>
    <name>Another page</name>
    <date>21/12/2009 17:03:52</date>
    <user id="1">writer</user>
  </node>
</data>

这是我的也许XPath的，这是错误还是我做的东西在这里根本错了？

Is it perhaps my xpath that is wrong or am I making something fundamentally wrong here?

推荐答案

有多种方法来得到这个工作：

There are a number of ways to get this to work:

使用Brian的解决方案，这是重写XML来使用属性，而不是子节点。

使用XSLT转换到子节点动态转换为属性。见this SO质疑为可以执行操作的XSLT。

XML数据加载到DataSet，它在内部做这种转换。

Use Brian's solution, which is to rewrite the XML to use attributes instead of sub-nodes.
Use an XSLT transform to dynamically convert the child nodes to attributes. See this SO question for an XSLT that can perform that operation.
Load the XML data into a DataSet, which internally does this conversion.

下面是如何做一个例子3：

Here's an example of how to do #3:

DataSet ds = new DataSet();
ds.ReadXml(MapPath("~/App_Data/mydata.xml"));
GridView1.DataSource = ds;
GridView1.DataBind();

这最后一种方法的限制是，你不会自动绑定，你会与一个数据源控件。然而，由于是的XmlDataSource只读反正控制，这不一定是严重的限制。

The limitation of this last approach is that you don't get automatic databinding as you would with a data source control. However, since the XmlDataSource is a read-only control anyway, that's not necessarily a serious limitation.

这篇关于GridView控件绑定到XML的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！