Parse XML

[Rajm0019]

Hi ALL

I have an XML source where i need to parse each row and populating to a Table, I am able to do that with the code below. It was executing fine until i found an issue with a row in xml where i can see only column1 and Column2 and dont find Column3. So Assuming Column3 as null i need to declare it in the below code. I am not an expert in C# , appreciate any help on this.

Ex : Row 1 has Column1, Column2, Column3

Row 2 has Column1 and Column3 , I need to declare Column2 as Null

Row 3 has Column2 and Column3 and I need to declare Column1 as null .

So the overall code should get results as whenever i dont find a column in a row i need to declare it as null.

Appreciate for your help


Thanks

Raj

#region Help: Introduction to the Script Component
/* The Script Component allows you to perform virtually any operation that can be accomplished in
* a .Net application within the context of an Integration Services data flow.
*
* Expand the other regions which have "Help" prefixes for examples of specific ways to use
* Integration Services features within this script component. */
#endregion

#region Namespaces
using System;
using System.Data;
using Microsoft.SqlServer.Dts.Pipeline.Wrapper;
using Microsoft.SqlServer.Dts.Runtime.Wrapper;
using System.Xml;
using System.IO;
using System.Windows.Forms;
#endregion

/// <summary>
/// This is the class to which to add your code. Do not change the name, attributes, or parent
/// of this class.
/// </summary>
[Microsoft.SqlServer.Dts.Pipeline.SSISScriptComponentEntryPointAttribute]
public class ScriptMain : UserComponent
{
#region Help: Using Integration Services variables and parameters
/* To use a variable in this script, first ensure that the variable has been added to
* either the list contained in the ReadOnlyVariables property or the list contained in
* the ReadWriteVariables property of this script component, according to whether or not your
* code needs to write into the variable. To do so, save this script, close this instance of
* Visual Studio, and update the ReadOnlyVariables and ReadWriteVariables properties in the
* Script Transformation Editor window.
* To use a parameter in this script, follow the same steps. Parameters are always read-only.
*
* Example of reading from a variable or parameter:
* DateTime startTime = Variables.MyStartTime;
*
* Example of writing to a variable:
* Variables.myStringVariable = "new value";
*/
#endregion

#region Help: Using Integration Services Connnection Managers
/* Some types of connection managers can be used in this script component. See the help topic
* "Working with Connection Managers Programatically" for details.
*
* To use a connection manager in this script, first ensure that the connection manager has
* been added to either the list of connection managers on the Connection Managers page of the
* script component editor. To add the connection manager, save this script, close this instance of
* Visual Studio, and add the Connection Manager to the list.
*
* If the component needs to hold a connection open while processing rows, override the
* AcquireConnections and ReleaseConnections methods.
*
* Example of using an ADO.Net connection manager to acquire a SqlConnection:
* object rawConnection = Connections.SalesDB.AcquireConnection(transaction);
* SqlConnection salesDBConn = (SqlConnection)rawConnection;
*
* Example of using a File connection manager to acquire a file path:
* object rawConnection = Connections.Prices_zip.AcquireConnection(transaction);
* string filePath = (string)rawConnection;
*
* Example of releasing a connection manager:
* Connections.SalesDB.ReleaseConnection(rawConnection);
*/
#endregion

#region Help: Firing Integration Services Events
/* This script component can fire events.
*
* Example of firing an error event:
* ComponentMetaData.FireError(10, "Process Values", "Bad value", "", 0, out cancel);
*
* Example of firing an information event:
* ComponentMetaData.FireInformation(10, "Process Values", "Processing has started", "", 0, fireAgain);
*
* Example of firing a warning event:
* ComponentMetaData.FireWarning(10, "Process Values", "No rows were received", "", 0);
*/
#endregion

/// <summary>
/// This method is called once, before rows begin to be processed in the data flow.
///
/// You can remove this method if you dont need to do anything here.
/// </summary>
public override void PreExecute()
{
base.PreExecute();

}

/// <summary>
/// This method is called after all the rows have passed through this component.
///
/// You can delete this method if you dont need to do anything here.
/// </summary>
public override void PostExecute()
{
base.PostExecute();
/*
* Add your code here
*/
}

public override void CreateNewOutputRows()
{

string filepath = @"C:\XMLParse\ticket_160715_101624.txt";
string fileContent = new StreamReader(filepath).ReadToEnd();


XmlDocument doc = new XmlDocument();
doc.LoadXml("<root>" + fileContent + "</root>");

XmlNodeList xnl = doc.GetElementsByTagName("TICKET_EXTRACT");


foreach (XmlNode xn in xnl)
{

Output0Buffer.AddRow();

Output0Buffer.Column1 = xn["Column1"].InnerText;
Output0Buffer.Column2 = xn["Column2"].InnerText;
Output0Buffer.Column3 = xn["Column3"].InnerText;

}
/*
Add rows by calling the AddRow method on the member variable named "<Output Name>Buffer".
For example, call MyOutputBuffer.AddRow() if your output was named "MyOutput".
*/
}

}

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