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Bound grid to multiple business objects
posted

 Is there a way to bind a grid to multiple business objects?

I have a parent class that has a one to one relationship with it's child. Currently I have 2 grids(one per class bound) but would like to have one grid with a coupla bands.

ParentClass has many fields but 3 fields I need readonly to display in the ChildClassGrid so it would look like

ParentGrid 

ParentClassField1   ParentClassField2   ParentClassField3   ParentClassField4

For each Row in the ParentClass The ChildGrid would be

ReadOnlyParentClassField1   ReadOnlyParentClassField2    ReadOnlyParentClassField3    ChildClassField1    ChildClassField2

 

ParentClass & ChildClass are bound to different BusinessObjects Binding 

I currently have three unbound columns in the ChildGrid but am unsure how to fill the columns

in the initRow I do

e.Row.Cells("ReadOnlyParentClassField1").Value = "ReadOnlyParentClassField1"  but am unsure how to link them to its parents values

 Regards

 _Eric 

 

 

 

  • 635
    Offline posted

    Eric,

    We do this quite a lot for displaying data. What we do is create a 'hierarchical' parent which derives from your parent object to which we add an additonal bindinglist containing the child objects. We then create a returm this 'hierachical parent as a binding list and set this to the datasouirce of the grid. The data should then be displayed hieararchically. We've done this down to about 6 levels of 'nesting' so far andworks far better than having multiple grids.

     

    Jim 

     

  • 469350
    Verified Answer
    Offline posted

    I'm having a little trouble following exactly what your data structure is.

    The simple answer to your question is no, you cannot bind the grid to more than one data source. So one thing you could do is build a single data source that contains all of the data in a hierarchy.

    You might also want to consider using the UltraWinTree instead of UltraWinGrid. The tree has the ability to bind each rows collection individally.

    Or, you might be able to acheive what you want with unbound columns, but it's hard for me to say, because as I said, I am really not following your description very well.