C# Business Objects Demo

Comments

• AlexTZ

  February 2010 edited 6:42PM

  Hello,
  
  This is normal behavior, you should select the data source(s) in the "Data|Choose Report Data..." menu.
• mvijs

  February 2010 edited 6:42PM

  Dear Alex,
  
  Aaahhh, I see the Business Object now, that's great.
  But, is there a way to do this from code??
  Choosing the Report data I mean.
• AlexTZ

  February 2010 edited 6:42PM

  You can do this in code, but this is not recommended for BO with very complicated structure.
  report.RegisterData(myData, "MyData");
  report.GetDataSource("MyData").Enabled = true;
• mvijs

  February 2010 edited 6:42PM

  I see the first level (categories) now.
  But how do I make all sub-objects appear??
  
  I tried the colums collection, and that works fine for the products.
  But I added a list of Calculation-classes to the Product class like this:
  
  Class Categorie
  {
  

  private List<Product> FProducts;
  public List<Product> Products
  {

  get { return FProducts; }

  }

  }
  
  Class Product
  {

  private List<Calculation> FCalculations;
  public List<Calculation> Calculations
  {

  get { return FCalculations; }

  }

  }
  Class Calculation
  {
  }
  
  This is the function to set all objects.enabled = true
  
  private void enableAll(FastReport.Data.BusinessObjectDataSource dsb)
  {
  

  dsb.Enabled = true;
  foreach (FastReport.Data.Column c in dsb.Columns)
  {

  if (c is FastReport.Data.BusinessObjectDataSource)
  {

  enableAll((FastReport.Data.BusinessObjectDataSource)c);

  }

  }

  }
  
  The function-call is like: enableAll(report.GetDataSource("MyData"));
  
  When the enabledAll() is called for the second time, the dsb.columns.count is zero.
  
  So how do I make all sub-objects appear??
  
• AlexTZ

  February 2010 edited 6:42PM

  When register the data, set maxNestingLevel param to 2 or more:
  report.RegisterData(myData, "MyData", 2);
  report.GetDataSource("MyData").Enabled = true;
  report.GetDataSource("MyData.NestedData").Enabled = true;