XML message generation

[N a v a n e e t h]

George_George wrote:

XMLTextWriter will not use DOM model and only loads necessary nodes other than all nodes

XMLTextWriter won't load any nodes. It is used to create XML documents. It has some methods which you can use to create nodes, attributes etc.

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia How to use google | Ask smart questions

[vytheese]

If your using .NET 3.5 Try to use XElement using System.Xml.Linq its pretty easy, fast and convinient when compared to DOM

Regards, Vythees Miles to go before sleep...

[George_George]

Sorry, N a v a n e e t h! My bad, I mean XMLTextReader, it will not load the entire tree as DOM, like XMLDocument, and it will only loads necessary nodes, right? regards, George

[George_George]

Thanks Vythees, I need to use .Net 2.0 in current project, do you have any suggestions? regards, George

[N a v a n e e t h]

Yes. It will not load the full file initially. XMLDocument class is also using a reader internally to fill the data.

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia How to use google | Ask smart questions

[George_George]

Thanks N a v a n e e t h, 1. So, can I understand that using XMLDocument has better performance compared with XMLTextReader, but bigger memory footprint. 2. XMLDocument can both read/write, but XMLTextReader can only read, and XMLTextWriter can only write? regards, George

[N a v a n e e t h]

George_George wrote:

So, can I understand that using XMLDocument has better performance compared with XMLTextReader, but bigger memory footprint.

This depends on the XML file size. When you call Load() method in an XMLDocument classes instance, it reads all the nodes and forms a DOM and keeps in the memory. So when the file is huge, it will consume more memory. Performance is dependent of your scenario. If you need to read the XMLFile (not as DOM), XMLTextReader will give good performance. For creating a new xml file, XMLTextWriter will give good performance. Say, in a situation where you will add new nodes, change the attributes, and doing some XPath queries, then better choice would be XMLDocument class.

George_George wrote:

XMLDocument can both read/write, but XMLTextReader can only read, and XMLTextWriter can only write?

XMLDocument class can do more than read/write. It supports XPath queries also.

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia How to use google | Ask smart questions

[George_George]

Great N a v a n e e t h! If I only need to read XML documents (in a file) into memory and get some values for some elements, then I think using XMLDocument will always have better performance, since all nodes are in memory (compared with XMLTextReader, only parts of nodes are in memory). Why do you think it is not always true? regards, George

[N a v a n e e t h]

George_George wrote:

If I only need to read XML documents (in a file) into memory and get some values for some elements, then I think using XMLDocument will always have better performance

If the file size is less, you won't find any performance differences. XMLDocument provides an easy way to load and edit data. You can go with any methods which really suits your scenario.

All C# applications should call Application.Quit(); in the beginning to avoid any .NET problems.- Unclyclopedia How to use google | Ask smart questions

[George_George]

Thanks N a v a n e e t h, If the size of file is big, using XMLDocument is of better performance? :-) regards, George

[vytheese]

Go for XMLDocument since its easy to maintain, futuristic, and supports XPath queries.

Regards, Vythees Miles to go before sleep...

[George_George]

Thanks Vythees, What do you think the pros and cons compared with XMLDocument and XMLTextWriter from functional and performance perspective? regards, George