Add XMl attributes if not exist using Xpath Navigator

Question

I want to add attributes only when it is not exist.

Graham Lower · Accepted Answer · 2012-04-18 16:53:19Z

2

Check out: http://egeveke.blogspot.com/2006/09/xpathnavigator-missing-setattribute.html

Basically you use MoveToAttribute, testing if it was successful. If not, then it does not exist and you can create. Remember to either start with a clone of you navigator, or move back to the parent when you are successful.

if (nav.MoveToAttribute())
{
  // exists
  nav.MoveToParent();
} 
else
{
  nav.CreateAttribute(...);
}

answered Apr 18, 2012 at 16:53

Graham Lower

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Comments

SwDevMan81 · Accepted Answer · 2011-04-26 11:13:56Z

0

Check out Insert XML Data using XPathNavigator. Specifically the section Inserting Attribute Nodes

answered Apr 26, 2011 at 11:13

SwDevMan81

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1 Comment

BreakHead Over a year ago

but it doesn't check attribute exist or not

Archana · Accepted Answer · 2011-04-26 11:42:44Z

0

Use "HasAttributes" property on the Xpathnavigator object to check whether it has any attributes and then continue to do your operation. Hope this helps!!

answered Apr 26, 2011 at 11:42

Archana

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3 Comments

BreakHead Over a year ago

I want to check for a particular attribute??/

Archana Over a year ago

Try using GetAttribute method and based on its return value, u can add the new attribute, if it does not exist.

Archana Over a year ago

you can also try using MoveToFirstAttribute() and then get its name and value like: ` if (xPathNav.MoveToFirstAttribute()) { Console.WriteLine(xPathNav.Name + "=" + xPathNav.Value); }`

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