Chapter1 : CarBuildProvider web.config error

kafshdoozak · #1 (**permalink**) January 27th, 2013, 04:42 AM

hello

i've made my build provider as you said in section (USING YOUR OWN BUILD PROVIDER) but it has one error : Could not load type 'CarBuildProvider.Car'

thank you.

here is my Codes:

Code:

using System.IO;
using System.Web.Compilation;
using System.CodeDom;
using System.Xml;

/// <summary>
/// Summary description for CarBuilderProvider
/// </summary>
namespace CarBuildProvider
{
  public class Car : BuildProvider
  {
    public override void GenerateCode(AssemblyBuilder myAb)
    {
      XmlDocument carXmlDoc = new XmlDocument();
      using (Stream passedFile = OpenStream())
      {
        carXmlDoc.Load(passedFile);
      }
      XmlNode mainNode = carXmlDoc.SelectSingleNode("/car");
      string selectionMainNode = mainNode.Attributes["name"].Value;

      XmlNode colorNode = carXmlDoc.SelectSingleNode("/car/color");
      string selectioncolorNode = colorNode.InnerText;

      XmlNode doorNode = carXmlDoc.SelectSingleNode("/car/door");
      string selectionDoorNode = doorNode.InnerText;

      XmlNode speedNode = carXmlDoc.SelectSingleNode("/car/speed");
      string selectionSpeedNode = speedNode.InnerText;

      CodeCompileUnit ccu = new CodeCompileUnit();
      CodeNamespace cn = new CodeNamespace();
      CodeMemberProperty cmp1 = new CodeMemberProperty();
      CodeMemberProperty cmp2 = new CodeMemberProperty();
      CodeMemberMethod cmm1 = new CodeMemberMethod();

      cn.Imports.Add(new CodeNamespaceImport("System"));

      cmp1.Name = "Color";
      cmp1.Type = new CodeTypeReference(typeof(string));
      cmp1.Attributes = MemberAttributes.Public;
      cmp1.GetStatements.Add(new CodeSnippetExpression("return \"" + selectioncolorNode + "\""));

      cmp2.Name = "Doors";
      cmp2.Type = new CodeTypeReference(typeof(int));
      cmp2.Attributes = MemberAttributes.Public;
      cmp2.GetStatements.Add(new CodeSnippetExpression("return" + selectionDoorNode));

      cmm1.Name = "Go";
      cmm1.ReturnType = new CodeTypeReference(typeof(int));
      cmm1.Attributes = MemberAttributes.Public;
      cmm1.Statements.Add(new CodeSnippetExpression("return" + selectionSpeedNode));

      CodeTypeDeclaration ctd = new CodeTypeDeclaration(selectionMainNode);
      ctd.Members.Add(cmp1);
      ctd.Members.Add(cmp2);
      ctd.Members.Add(cmm1);

      cn.Types.Add(ctd);
      ccu.Namespaces.Add(cn);

      myAb.AddCodeCompileUnit(this, ccu);
    }

  }
}

web.config Code :

Code:

<configuration>
  <system.web>
    <compilation debug="false">
      <buildProviders>
        <add extension=".car" type="CarBuildProvider.Car"/>
      </buildProviders>
    </compilation>
  </system.web>
</configuration>

and .car code :

Code:

<?xml version="1.0" encoding="utf-8" ?>
<car name="EvjenCar">
  <color>Blue</color>
  <door>4</door>
  <speed>150</speed>
</car>

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