|
|
I am trying to read an XML file and break it up into smaller chunks but am having real problems in doing so as I have never used XML (and am new to C#), so would appreciate any help possible. The problem is in two parts:
1) I have a file with some beginning header info, i.e. along the lines of:
<?xml version=”1.0” encoding=ISO-8859-1” ?>
<!—some comments -->
<message xmlns:xsi=”http….”…>
<header>
<more header stuff>text here</more header stuff>
<some more header stuff>text here</some more header stuff>
</header>
I wish to add this to every new XML document I create but am having problems when trying to write it.
2) I then wish to read a large XML document and cycle through it, copying each record to a new file that I have created (with the above header info), until I have 100 records, then start again. The format of the records is:
<Record>
<attribute1>blah blah</attribute1>
<attribute2>blah blah</attribute2>
<attribute3>blah blah</attribute3>
</Record>
I know that I need a for-loop to do this, but not having any experience of XML with C#, I don’t know what is needed to complete this task. Can anybody help please?!
Thank you to all who can assist!
|
|
|
|
|
Have a look at the System.Xml.XmlDocument[^] and related classes. They allow you to load the the XML file into memory and perform operations like addition/removal of nodes. In particular, pay attention to the CreateNode[^] and Save[^] methods.
|
|
|
|
|
Thanks for your help Senthil. But do you (or anybody) have anything a bit simpler you could point me towards; something that would make a bit more sense a bit quicker, rather than having to read class definitions?
Thanks
|
|
|
|
|
|
Thanks for your help so far. I have been working away and had some success; I can create a new XML file which prints the header info, then begins to cycle through and print the records as expected (hoped!). However, it crashes at the end with the following error:
"A name was started with an invalid character. Error processing resource 'file:///C:/..."
Also, the second file is created but cannot even be displayed, as it shows the following error:
"XML document must have a top level element. Error processing resource 'file:///C:/..."
My code for this is as follows:
while (fileReader != null)
{
// Create a file to write to
XmlTextWriter fileWriter = new XmlTextWriter(directory + "\\Output" + x + " myFile.xml", System.Text.Encoding.GetEncoding("ISO-8859-1"));//null);//System.Text.Encoding.UTF8);
// Write the header details to the new file
fileWriter.WriteProcessingInstruction("xml", "version='1.0' encoding='ISO-8859-1'");
fileWriter.WriteStartElement("!-- My comments go here --");
fileWriter.WriteStartElement("message");
fileWriter.WriteAttributeString("xmlns", "xsi", null, "http://www.w3.org/2001/XMLSchema-instance");
fileWriter.WriteAttributeString("xsi", "noNamespaceSchemaLocation", null, "myXSDdoc.xsd");
// Add 'messageHeader' as the element to enclose records in the file
while (fileReader.Name != "messageHeader")
{
fileReader.Read();
}
fileWriter.WriteNode(fileReader, true);
// Write each row to the file, until 1000 records have been written
for (int i = 1; i <= 1001; i++)
{
while (fileReader.Name != "KeyRecord")
fileReader.Read();
fileWriter.WriteNode(fileReader, true);
fileWriter.Flush();
}
// Tidy up and close the file so that a new one can be opened
fileWriter.WriteEndElement();
fileWriter.Close();
x++;
}
Can anybody please help me with these errors? Thanks
|
|
|
|
|
Dear every one,
I am new in C# and I have a question about call function between two windows forms.
In my project I have two windows form (form example Form1 and Form2) Form1 has some functions for itself(for example Func1,Func2,..) and Form2 has another functions (for example TempFunc1,TempFunc2,..).I'd like to call Func1 via Form2,I mean when the program is running and the TempFunc1 from Form2 is doing I want to call Func1 from Form1,how can I do this?
Please help me.
Yours Sincerely.
Orchid
|
|
|
|
|
The main way to do this is to create delegates, so that your forms can call functions within each other. If you want something more quick and dirty, pass an instance of each form to the other form, and make the methods public.
We need a FAQ, and this needs to be the first item on it. In fact, I thought we had one ?
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
|
|
|
|
|
Christian Graus wrote: We need a FAQ, and this needs to be the first item on it. In fact, I thought we had one ?
This has been a long....long...did I say long running feeling. Heath Stewart and I started one about 3 years ago. I don't think it ever came to fruition.
|
|
|
|
|
you could use of this function such as using a function in a class .
Create a new instanse of ur form class and then call your function
|
|
|
|
|
See this article: Passing values between Forms in .NET[^]
It passes values through properties - but properties are just syntactic sugar over getter and setter methods, so it works just as well for calling regular methods.
|
|
|
|
|
hi,
in c i wrote this: int pcread[250];
how do i write this in c#
its something like int pcread= new ....
anybody?
|
|
|
|
|
int[] pcread = new int[250];
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
|
|
|
|
|
|
Morning all,
I was wondering if somebody could answer a simple question.
Using VS2005 I have a C# form connected to a Typed DataSet.
On this form I have a number of Textboxes that are DataBound to a Binding source, this is all fine, but I want to allow the user to edit the text without direct updates to the datasource. To implement this, I call suspendbinding on the binding source, but this clears the text boxes. Is there any way to prevent the text boxes clearing when suspend is called??
Thanks
Paul
|
|
|
|
|
Hey, I need to do a program, that when I tell it to, it will restart the program and update from the click-once auto-update.
How is it possible from inner-C# programming?
PLEASEEEE!!!! IT IS REALY IMPORTENT!!!
Thanks alot!!
|
|
|
|
|
I want an example code for creating a login page... By giving username and password and to fetch the username and password from a database..
|
|
|
|
|
You try to write it yourself and then if you encounter some problem ask here. 
Best Regards,
Apurva Kaushal
|
|
|
|
|
hello
does anyone know how to do a linear fitting in C#?
thank you
|
|
|
|
|
What does that mean ?
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
|
|
|
|
|
hi i immediately need a project based on inventory control... If any one having post it to my email id chweet_arun@yahoo.com.sg....
I need Inventory control project with full coding and modules that must be executable
arun
-- modified at 2:09 Tuesday 3rd October, 2006
|
|
|
|
|
Sounds great. I need a program that displays medical images across 5 monitors, with a variety of client tools such as zoom and so on, and which downloads those images via a webservice. How about if I do your work, you can do mine ?
In other words, this site isn't here to do your job for you, or your homework, whatever it is you're trying to get away with not doing. Read your spec/homework, ( if it's work, then you'd do better to return it and explain why you are not competent to do it ), and assuming it's homework, talk to your lecturer, read your resource materials. If, after doing all that and trying to do your homework, you're stuck, by all means ask questions here.
If you need an inventory control program for your business, I'm way too busy, but I'm sure there's plenty of people here who could offer you their contract rates.
Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
|
|
|
|
|
Hi
I have one column which contains numeric data. If data is 0 I would like to display ''.
How can I do that? Set any format?
thanks for help
Ela
|
|
|
|
|
maybe you can use a filter;
xDataSet.xtable.DefaultView.RowFilter =" xcolumn LIKE '% 0 %' ";
dataGridView1.DataSource = DataSet.xtable.DefaultView ;
with this only the cells with a 0 are displayed
|
|
|
|
|
I do not want to filter these records but show them and to not show 0 but ' ' (blank space)
|
|
|
|
General 
News 
Suggestion 
Question 
Bug 
Answer 
Joke 
Praise 
Rant 
Admin 
Submit an article or tip
