Create columns Dynamically

• In Tables and Grids it is possible to create Columns dynamically based on the data in SystemWeaver. 
• To describe how this works we have set up a simplified scenario 
• Consider the following: I want to see what functionality that is planned for which milestone
  

Example Meta model

This is the result we want

This is the definition

The report in plaintext

<Grid>
  <Columns>
    <ItemNameColumn caption="Function" width="200"/>
    <!--Columns can be defined based on data in the models. This is performed just like normal data collection.-->    
    <ForEachPart type="MILS">
        <DefObj>                                              
            <!--For every Milestone, create a column. Set the property objectName to its name to be able to reference it later.-->
            <!--If we get a hit, "X" will be written in that column.-->            
            <TextColumn caption="#{Name}" objectName="#{Name}" width="200">X</TextColumn>
        </DefObj>
    </ForEachPart>    
  </Columns>
  <!--Create a context for the scenario-->
  <Context name="milestonePlanning">
    <AddParts owner="main" sid="PTUR" part="functionRequirementsPart" defobj="functionRequirements"/>
    <AddParts owner="functionRequirements" sid="IURQ" part="functionPart" defobj="function"/>
    <AddParts owner="main" sid="MILS" part="milestonePart" defobj="milestone"/>        
    <AddParts owner="milestone" sid="EFUN" part="plannedFunctionalityPart" defobj="function"/>
  </Context>           
  
  <ForEachInContext name="milestonePlanning" group="function">  
    <Row>                                                     
    <!--For every found function, print a row.-->   
        <ContextGoBack part="plannedFunctionalityPart">
        <!--If it is planned for a milestone. Set a RowObject with the Milestone's name to get an "X" in the Milestone column.-->      
            <RowObject name="#{Name}"/>
        </ContextGoBack>
    </Row>  
  </ForEachInContext>  
</Grid>