如何在运行时更改xmldataprovider源WPF？ [英] how to change xmldataprovider source in wpf at runtime?

问题描述

我做了哪些借鉴的基础上，从一个XML文件中的值组织的树中的应用程序

I made an application which draws a tree of organization based on values from an xml file.

XAML文件是这样的：

The xaml file goes like this :

<Window.Resources>


    <!-- The Org Chart Data-->
    <XmlDataProvider x:Key="organization"  Source="model.xml" />

    <SolidColorBrush x:Key="ListBorder" Color="#FF7F9DB9"/>

    <!-- The Style for Nodes -->
    <Style TargetType="{x:Type draw:Node}">
        <Setter Property="OverridesDefaultStyle" Value="true"/>
        <Setter Property="Template">
        ---------------------------------------------------------

我希望能够改变源在通过选择一个XML文件，从打开文件对话框（如按钮单击）运行时我该怎么办呢？

I want to be able to change the source at runtime by selecting a xml file from openfiledialog (like button click) how do i do that?

推荐答案

您可以得到 XmlDataProvider 实例通过写（XmlDataProvider）this.Resources [组织] 中的代码文件。

You can get the XmlDataProvider instance by writing (XmlDataProvider)this.Resources["organization"] in the code file.

您可以再设置的 来源 属性从一个文件对话框的路径

You can then set the Source property to a path from a file dialog.

例如：

var provider = (XmlDataProvider)this.Resources["organization"];
var dialog = new OpenFileDialog();
dialog.Filter = "XML Files|*.xml";
if (dialog.ShowDialog(this)) {
    provider.Source = new Uri(dialog.FileName, UriKind.Absolute);

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