XNode.IsBefore Method
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Determines if the current node appears before a specified node in terms of document order.
Namespace: System.Xml.Linq
Assembly: System.Xml.Linq (in System.Xml.Linq.dll)
Syntax
'Declaration
Public Function IsBefore ( _
node As XNode _
) As Boolean
public bool IsBefore(
XNode node
)
Parameters
- node
Type: System.Xml.Linq.XNode
The XNode to compare for document order.
Return Value
Type: System.Boolean
true if this node appears before the specified node; otherwise false.
Examples
The following example uses this method.
Dim output As New StringBuilder
Dim xmlTree As XElement = _
<Root>Text content.
<Child1>child1 content</Child1>
<Child2>child2 content</Child2>
<Child3>child3 content</Child3>More text content.
<Child4>child4 content</Child4>
<Child5>child5 content</Child5>
</Root>
Dim child3 As XElement = xmlTree.<Child3>(0)
Dim child5 As XElement = xmlTree.<Child5>(0)
If (child5.IsBefore(child3)) Then
output.Append("Child5 is before Child3")
output.Append(Environment.NewLine)
Else
output.Append("Child5 is not before Child3")
output.Append(Environment.NewLine)
End If
OutputTextBlock.Text = output.ToString()
StringBuilder output = new StringBuilder();
XElement xmlTree = new XElement("Root",
new XText("Text content."),
new XElement("Child1", "child1 content"),
new XElement("Child2", "child2 content"),
new XElement("Child3", "child3 content"),
new XText("More text content."),
new XElement("Child4", "child4 content"),
new XElement("Child5", "child5 content")
);
XElement child3 = xmlTree.Element("Child3");
XElement child5 = xmlTree.Element("Child5");
if (child5.IsBefore(child3))
output.Append("Child5 is before Child3");
else
output.Append("Child5 is not before Child3");
OutputTextBlock.Text = output.ToString();
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
XNA Framework
Supported in: Xbox 360, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
See Also