CODEWITHSUNDEEP
c#xmlwpfxmldataprovider
KMC
KMC

Reputation: 20046

Set XMLDataProvider source dynamically

While all examples and sources I found is to set the resource in XAML statically, I would only know in run time the name of the XML file to be connected with XMLDataProvider. Is there a way to set either in code behind or in XAML?

<Window.Resources>
    <XmlDataProvider x:Key="XMLFoo" Source="Foo.xml" XPath="Foo"/>
</Window.Resources>

It could be Foo.xml, or could be Goo.xml.

Upvotes: 1

Views: 1349

Answers (2)

Suresh
Suresh

Reputation: 4149

If you are trying to have just one instance of XamlDataProvider and would like your source to change dynamically, I don't think it is possible in pure XAML as you cannot bind to Source property, since that is not a DependencyProperty.

From code-behind, you can get the instance your provider and change it's source.

var provider = (XmlDataProvider) Resources.FindName("XMLFoo");
provider.Source = new Uri("bar.xml", UriKind.Relative);

Alternatively, you can use MVVM and expose your XmlDataProvider as a property on the ViewModel and bind it to your View, you can then change the Source and refresh data from the ViewModel itself.

Upvotes: 1

lokusking
lokusking

Reputation: 7456

Yes you can change that while runtime. Unfortunately you cannot bind it, so you have to do stuff in Code-Behind.

Here's a simple example:

(this.Resources["XMLFoo"] as XmlDataProvider).Source = new Uri("Goo.xml");

Cheers

Upvotes: 2

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