C＃从XML删除字符串

Question

I have an xml that has several attributes and values such as follows:

<z:row ID="1"
       Author="2;#Bruce, Banner"
       Editor="1;#Bruce, Banner"
       FileRef="1;#Reports/Pipeline Tracker Report.xltm" 
       FileDirRef="1;#Reports" 
       Last_x0020_Modified="1;#2014-04-04 12:05:56" 
       Created_x0020_Date="1;#2014-04-04 11:36:21" 
       File_x0020_Size="1;#311815" 
/>

How can I remove the string from after the " up to the #?

Original

'Author="2;#Bruce, Banner"'

Converted

'Author="Bruce, Banner"'

Answer 1

See if this helps.

private string FilterValue(string input)
{
    // If the string does not contain #, return value
    if (!input.Contains("#"))
        return input;

    // # does exist in the string so 
    // 1) find its location
    // 2) Read everything from that point to the end of the string
    // 3) Return the SubString value
    var index = input.IndexOf("#", StringComparison.Ordinal) + 1;
    return input.Substring(index, input.Length - index);
}

Answer 2

Something like this ?

// same logic then M Patel.
// This one will fit only if you have three items to remove (one digit, one semi-colon and one sharp).
// use M Patel solution
string CleanElement(string elem)
{
    return elem.Substring(3, elem.Length - 3);
}

or like this :

// slower I guess but still a solution
string CleanElement(string elem)
{
     string[] strs = elem.Split('#');
     strs[0] = "";
     return string.Join("", strs);
}

Answer 3

You can use string.Substring and string.IndexOf methods

string value= node.Attributes["Author"].Value;
value=value.Substring(0, value.IndexOf('#'));

I hope this is what you are looking for assuming that you are already reading your node from xml document

If you are new to reading XML in c#, I would recommend you to take a look at following msdn link https://msdn.microsoft.com/en-us/library/cc189056(v=vs.95).aspx

Answer 4

You can use regex for for seraching you pattern and use regEx.Replace() method. Regex might goes like this "\\d;#".

Answer 5

It should work if entry is 2;#Bruce, Banner!

 string value= node.Attributes["Author"].Value;
 var op = value.Split('#');
 string name = op[1];

If other # is expected then,

string value1 = value.Substring(3, value.Length - 3);

Answer 6

You can use a simple regex:

string s = @"<z:row ID=""1""
   Author=""2;#Bruce, Banner""
   Editor=""1;#Bruce, Banner""
   FileRef=""1;#Reports/Pipeline Tracker Report.xltm"" 
   FileDirRef=""1;#Reports"" 
   Last_x0020_Modified=""1;#2014-04-04 12:05:56"" 
   Created_x0020_Date=""1;#2014-04-04 11:36:21"" 
   File_x0020_Size=""1;#311815""
    />";

string result = Regex.Replace(s,"\"([0-9];#)","");