Replace String in c#

Question

I hava a specific string that I want to replace

string gerneralRootPath = docTab.Rows[0]["URL"].ToString();
string documentName = docTab.Rows[0]["NAME"].ToString();

var connectNamesAndURL = new StringBuilder(gerneralRootPath);
connectNamesAndURL.Remove(30,20);
connectNamesAndURL.Insert(30, documentName);
gerneralRootPath = connectNamesAndURL.ToString();

The output of gerneralRootPath is "Documents/Z_Documentation/PDF/sales.2010+Implementation+Revised+Feb10.pdf"

The output of is documentName is "doc123"

My gole is to remove everything after /PDF/.. so that final string looks like this Documents/Z_Documentation/PDF/doc123

So how can I remove everything after the /PDF/..

Mairaj Ahmad · Accepted Answer · 2016-06-13 07:09:03Z

1

Try this

string gerneralRootPath = "Documents/Z_Documentation/PDF/sales.2010+Implementation+Revised+Feb10.pdf";
gerneralRootPath = gerneralRootPath.Remove(gerneralRootPath.IndexOf("PDF") + 3);
gerneralRootPath = gerneralRootPath +"/"+documentName ;

answered Jun 13, 2016 at 7:09

Mairaj Ahmad

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Comments

M. Schena · Accepted Answer · 2016-06-13 07:09:10Z

0

You can achieve this using String.Split() function:

string input = "Documents/Z_Documentation/PDF/sales.2010+Implementation+Revised+Feb10.pdf";
string output = input.Split(new string[] { "/PDF/" }, StringSplitOptions.None).First() + "/PDF/doc123";

answered Jun 13, 2016 at 7:09

M. Schena

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Comments

naro · Accepted Answer · 2016-06-13 07:18:42Z

0

using System.IO;  

string result = gerneralRootPath.Replace(Path.GetFileName(gerneralRootPath), documentName);

With Path.GetFileName (from System.IO) you get your filename:

sales.2010+Implementation+Revised+Feb10.pdf

The result is:

Documents/Z_Documentation/PDF/doc123

answered Jun 13, 2016 at 7:18

naro

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Comments

Coder · Accepted Answer · 2016-06-13 07:19:49Z

0

please find the sample code

int i = gerneralRootPath.IndexOf("/PDF/");

 if (i >= 0) gerneralRootPath = gerneralRootPath.Substring(0,i+5);

i hope this will help you....

answered Jun 13, 2016 at 7:19

Coder

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Comments

Tim Ashton · Accepted Answer · 2016-06-13 07:26:25Z

This is an example:

class Program
{
    static string RemoveAfterPDF(string gerneralRootPath)
    {
        string pdf = "PDF";
        int index = gerneralRootPath.IndexOf(pdf);
        return gerneralRootPath.Substring(0, index + pdf.Length);
    }

    public static void Main()
    {
        string test = RemoveAfterPDF("Documents/Z_Documentation/PDF/sales.2010+Implementation+Revised+Feb10.pdf");
    }
}

Edit This is better and much more reusable example:

class Program
{
    static string RemoveAfter(string gerneralRootPath, string removeAfter)
    {
        string result = string.Empty;
        int index = gerneralRootPath.IndexOf(removeAfter);

        if (index > 0)
            result = gerneralRootPath.Substring(0, index + removeAfter.Length);

        return result;
    }

    public static void Main()
    {
        string test = RemoveAfterPDF("Documents/Z_Documentation/PDF/sales.2010+Implementation+Revised+Feb10.pdf", "PDF");
    }
}

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