Post XML Data to an ASP.NET Page using C#

By S Sansanwal | 18 May 2005
This article describes the function to post XML data to an ASP.NET page and then read the data on an ASP.NET page
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Code For Posting

To post XML, use the following function:

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WebRequest req = null;
WebResponse rsp = null;
try
{
string fileName = "C:\test.xml";
string uri = "http://localhost/PostXml/Default.aspx";
req = WebRequest.Create(uri);
//req.Proxy = WebProxy.GetDefaultProxy(); // Enable if using proxy
req.Method = "POST"; // Post method
req.ContentType = "text/xml"; // content type
// Wrap the request stream with a text-based writer
StreamWriter writer = new StreamWriter(req.GetRequestStream());
// Write the XML text into the stream
writer.WriteLine(this.GetTextFromXMLFile(fileName));
writer.Close();
// Send the data to the webserver
rsp = req.GetResponse();

}
catch(WebException webEx)
{

}
catch(Exception ex)
{

}
finally
{
if(req != null) req.GetRequestStream().Close();
if(rsp != null) rsp.GetResponseStream().Close();
}Function to read xml data from local system
///

/// Read XML data from file
///

/// /// returns file content in XML string format
private string GetTextFromXMLFile(string file)
{
StreamReader reader = new StreamReader(file);
string ret = reader.ReadToEnd();
reader.Close();
return ret;
}
Code For Reading Posted Data

Now, on the Web server in the ASP.NET page, write the following code to access the posted data:

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private void Page_Load(object sender, EventArgs e)
{
page.Response.ContentType = "text/xml";
// Read XML posted via HTTP
StreamReader reader = new StreamReader(page.Request.InputStream);
String xmlData = reader.ReadToEnd();
}
License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)