XML string as a parameter

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Hi,
I have a XML string like
< Root >< PC ID=1 />< PC ID=12 />< PC ID=25 />< PC ID=29 />< /Root >
Note: There are spaces between < ROOT >... < /ROOT >
Codebehind:

C#

<pre lang="xml">protected void CheckBoxList1_SelectedIndexChanged(object sender, EventArgs e)
{
    Label1.Text = "< Root >";
    foreach (ListItem listitem in CheckBoxList1.Items)
    {
        if (listitem.Selected)
            Label1.Text += "< PC ID=" + listitem.Value + " />" ;
    }
    Label1.Text += "< /Root >";

}
        protected string GetAsXMLString(CheckBoxList itemsource)
    {
        StringBuilder sb = new StringBuilder("<root>");
        foreach (ListItem listitem in itemsource.Items)
        {
            if(listitem.Selected)
                sb.Append(String.Format("<PC ID={0}/>", listitem.Value));
        }
        return sb.ToString();
    }

ISSUE:--- my STORED proc take the paramete like this

EXEC [usp_data] @ServerID = 543, @xmlDocument = '<Root><PC ID="1"/><PC ID="6"/><PC ID="12"/><PC ID="28"/></Root>'
Note :-- there are no spaces between <root><pc id="1"><pc id="6"><pc id="12"><pc id="28">
How to generate the string with out spaces ...If i remove the spaces in my c# code am unable to build that string...

Posted 6-Jun-12 5:21am

myansweris

Updated 6-Jun-12 5:57am

v3

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Comments

Tim Corey 6-Jun-12 11:25am

Why are you unable to build the string without the spaces? Do you get an error? If so, what error? If not, what stops you?

3 solutions

Solution 1

I am not sure what your actual issue is, but maybe it will help if you do not build the XML manually as you are.

I would recomend using objects like XElement[^] and XDocument[^].

Then when you need the string format you can just ToString it.

[Edit]
Is your issue that you are adding <root> but not closing it? I am seeing the StringBuilder initialized with it but there is no closing.
Again, using an XML object would help you in this matter. It handles closing tags and proper placing of the attributes and child elements.

Posted 6-Jun-12 5:30am

N_tro_P

Updated 6-Jun-12 5:35am

v5

Comments

lewax00 6-Jun-12 12:12pm

Good suggestion. +5

[no name] 6-Jun-12 12:17pm

Thank you

VJ Reddy 6-Jun-12 22:54pm

Good answer. 5!

[no name] 7-Jun-12 11:33am

Thank you

Solution 3

i guess string: should be containted in your string!

Posted 6-Jun-12 19:12pm

moxwose

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VJ Reddy · Accepted Answer · 2012-06-06T16:54:00

It is not clear why XML string without spaces cannot be generated in C# and it appears that the second block of code given in the question generates the XML string without spaces.

Further the Solution 1 given by Collin Jasnoch can also be used to generate XML string without spaces.

However, if there is a specific requirement to remove spaces from the XML string, then Replace method of Regex class can be used to replace the spaces with Empty string as shown below:

C#

string xmlString = @"< Root >< PC ID=1 / >< PC ID=12 / >< PC ID=25 / >< PC ID=29 /  >< / Root >";

string xmlStringSansSpaces = Regex.Replace(xmlString,@"(?<=(?:<|/))\s+|\s+(?=(?:>))",
        string.Empty, RegexOptions.CultureInvariant);
Console.WriteLine (xmlStringSansSpaces);

//Output
//<Root><PC ID=1 /><PC ID=12 /><PC ID=25 /><PC ID=29 /></Root>

In the above code, the pattern (?<=(?:<|/))\s+|\s+(?=(?:>)) searches for whitespace either preceded by < or / or followed by > but captures only the whitespace which is replaced with an Empty string.