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Programmatically create a browser enabled InfoPath form

, 12 Feb 2009 CPOL
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How to programmatically create a browser enabled InfoPath form.


The article gives an overview of the steps and code required to create, fill, and upload an InfoPath form using code.

Design Infopath Form

Create an InfoPath form using the Microsoft InfoPath designer. This sample form will store the name and surname of the client and a table of products and amounts.


Create Class Representation of the Infopath Form

  1. Save the InfoPath form:
  2. Image2.jpg

    Figure 2 - Save as Source File
  3. Load the Visual Studio Command Prompt:
  4. Image3.jpg

  5. Locate form the source files:
  6. Image4.jpg

  7. Execute the command xsd.exe /c /l:CS myschema.xsd.
  8. The XSD tool forms part of the .NET framework tools. We will use it to generate a common language class from the XSD file representation of the InfoPath form.


    Figure 5 – Generated myschema class
// This source code was auto-generated by xsd, Version=2.0.50727.1432.
/// <remarks/>
[System.CodeDom.Compiler.GeneratedCodeAttribute("xsd", "2.0.50727.1432")]
public partial class myFields {
private string nameField;
private string surnameField;
private ProductRow[] productTableField;
private System.Xml.XmlAttribute[] anyAttrField;.....

Once the file is available in the project, you have the capability to bind the data source to the .NET class and access the data in a standardized format. If you ever make changes to your InfoPath data source, you’ll need to rerun the xsd.exe command against the new “schema.xsd” file.

Upload Form Template to a SharePoint Form Site


Figure 6 – Publish


Figure 7


Figure 8 – Select SharePoint Server


Figure 9


Figure 10


Figure 11


Figure 12


Figure 13

Populate and Upload Form Data

Populate the myFields class with dummy data. The class was created using the XSD application.

// Populate myfields class with dummy data. The class was created using the xsd
// application.
myFields fields = new myFields();
fields.Name = "Joe";
fields.Surname = "Blogs";
ProductRow[] rows = new ProductRow[2];
rows[0] = new ProductRow();
rows[0].ProductAmount = "1";
rows[0].ProductName = "Peach Jam";
rows[1] = new ProductRow();
rows[1].ProductAmount = "2";
rows[1].ProductName = "Strawberry Jam";
fields.ProductTable = rows;
// Create infopath form
MemoryStream myInStream = new MemoryStream();
// Form site used to store the generated forms
string rFormSite = @"http://sp/Sample Form";
// Location where form template is stored.
string rTemplateLocation = @"http://sp/Sample Form/Forms/template.xsn"; 
using (myInStream)
    // InfoPath forms are XML files. We have to write code to programmatically
    // generate the XML of the InfoPath form
    //Create XmlSerializer using myfields type
    XmlSerializer serializer = new XmlSerializer(typeof(myFields));
    XmlTextWriter writer = new XmlTextWriter(myInStream, Encoding.UTF8);
    // Insert infopath processing instructions
    string rInstruction = 
      "name=\"urn:schemas-microsoft-com:office:infopath:" + 
    rInstruction += 
        "solutionVersion=\"\" productVersion=\"\"
        PIVersion=\"\" href=\"" + rTemplateLocation + "\"";
    // An important thing you need to make sure of is that the href attribute
    // in the mso-infoPathSolution processing instruction points to the correct
    // form template you published. 
    writer.WriteProcessingInstruction("mso-infoPathSolution", rInstruction);
    // Mark the xml as an infopath document. 
        "progid=\"InfoPath.Document\" versionProgid=\"InfoPath.Document.2\"");
    // Serialize infopath data
    serializer.Serialize(writer, fields);
    // Upload form to form site.
    using (SPSite site = new SPSite(rFormSite))
        // Create web instance.
        using (SPWeb spweb = site.OpenWeb())
            // Add the file to the web file list.
            spweb.Files.Add(rFormSite + "\\" + Path.GetRandomFileName() + ".xml",



Figure 14 – New Item in Form Library


Figure 15 – Form Loaded with Data


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


About the Author

Simon Bonello
Malta Malta
No Biography provided

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Comments and Discussions

QuestionSSIS data flow compoenent Pin
kuthuparakkal2-Aug-11 16:29
memberkuthuparakkal2-Aug-11 16:29 
AnswerRe: SSIS data flow compoenent Pin
DeadLock062-Nov-11 6:11
memberDeadLock062-Nov-11 6:11 
I tried your tool. It doesn't work very well and has no documentation on how to set it up correctly. Not sure how you would get this to generate an InfoPath document.

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