[Solved] Telerik Treeview DataBinding

[Stephen]

We're having problems data binding multiple tables into a child teir. So say for instance I have 5 tables.

contracts
members
phoneassessments
homeassessments
personalassessments

Each Assessment table has the referencing MemberID and I need to print all three types of assessments in the tiers directly under Members, in other words to look like this.

Contract 1
    Member 1
        Home Assessment 1
        Home Assessment 2
        Phone Assessment 1
        Personal Assessment 1
        etc
    Member 2

The code I have is...

Html.Telerik().TreeView()
   .Name("TreeName")
   .BindTo(Model, mappings =>
     {
       mappings.For<SMTXEFMVCModel.Contract>(binding => binding
         .ItemDataBound((item, contract) =>
           {
             item.Text = contract.Description;
             item.SpriteCssClasses = ("icon-contracts");
           })
           .Children(Contract => Contract.Members));
       mappings.For<SMTXEFMVCModel.Member>(binding => binding
         .ItemDataBound((item, member) =>
           {
             item.Text = member.FirstName + " " + member.LastName;
             item.SpriteCssClasses = ("icon-members");
        }));
     })
    )

We're having difficulty figuring out the correct syntax, and can't find any good examples.

Our best guess is that it look something like:

Html.Telerik().TreeView()
   .Name("TreeName")
   .BindTo(Model, mappings =>
     {
       mappings.For<SMTXEFMVCModel.Contract>(binding => binding
         .ItemDataBound((item, contract) =>
           {
             item.Text = contract.Description;
             item.SpriteCssClasses = ("icon-contracts");
           })
           .Children(Contract => Contract.Members));
       mappings.For<SMTXEFMVCModel.Member>(binding => binding
         .ItemDataBound((item, member) =>
           {
             item.Text = member.FirstName + " " + member.LastName;
             item.SpriteCssClasses = ("icon-members");
           {)
           .Children(Members => Members.Assessments));
        mappings.For<(SMTXEFMVCModel.HomeAssessments,SMTXEFMVCModel.PhoneAssessments,
                      SMTXEFMVCModel.PersonalAssessments)>(binding => binding
         .ItemDataBound((item, assessments) =>
           {
             item.Text = HomeAssessments.AssessmentID.ToString()
             item.Text = PhoneAssessments.AssessmentID.ToString()
             item.Text = PersonalAssessments.AssessmentID.ToString()
        }));
     })
    )

Is this possible?

[Atanas Korchev]

Hi Stephen,

 The treeview supports only one type of children per level. This means that the following is not supported:

 Member 1
        Home Assessment 1
        Phone Assessment 1
        Personal Assessment 1

You need to have a unified type for the children of the Member class.

 You can check the databinding example of the treeview for a reference.

Regards,
Atanas Korchev
the Telerik team