How to check whether a character is present in the value of given XPath of XML file? Samples and examples

How to check whether a character is present in the value of given XPath of XML file?

Posted Date: 06-Aug-2012	Category: C# Syntax
Author: Sarang Singnapurkar	Member Level: Gold	Points: 15

There is a sample code to check whether any particular character is present in XPath in xml file or not. User can set xpath , expected character and xml file dynamically to check this. Code has been developed in C# whereas application is windows based.

How to check whether a character is present in the value of given XPath of XML file?
Introduction
I have developed the method which will give you true as a result, if expected character is present in the XPath of XML file. If that character is not present in xpath of xml file then it will give false as a result.
User has to give parameters as xpathvalue , xml file path , expected character in the method.
Description
Create a class library in which put this code snippet and call whenever it is required.


public bool IsCharacterPresent(string xpathvalue, string user_defined_xml_file , string expected_Character)
        {
            bool result_value = false;            
            try
            {                
                XmlDocument user_defined_xml_document = new XmlDocument();
                user_defined_xml_document.Load(user_defined_xml_file);
                XmlNodeList mynodeValueList = user_defined_xml_document.SelectNodes(xpathvalue);
                foreach (XmlNode mynodeValue in mynodeValueList)
                {

                    if (mynodeValue.InnerText.Contains(expected_Character))
                   
                    {
                        result_value = true;                        
                        return result_value;
                    }
                    else
                    {
                        result_value = false;
                        
                    }                   
                }             
               
            }
            catch (Exception)
            {
                result_value = false;               
            }
            
            return result_value;
        }

Instead of a character, suppose user wants to put substring then also this method can be used.

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How to check whether a character is present in the value of given XPath of XML file?

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