How to access Modeldata in my View (build treenodes)

[Former Member]

Hello together

Don't know how to build up a tree-control from xmlmodel data, held by controller.

Therefore i´ve tried to access the values from my model in view, but can't get the values.

In my controller in 'onInit:' function i have set the model to the treecontrol 

CONTROLLER:

this.byId("firstTree").setModel(xmlmodel);

Next, in my view file i tried to build the treenodes by looping over modeldata and a them to the tree.

That failed. I can set the values for the subnodes and after the rendering i see the right values in my browser.

Don't know if this is the best way. I'm grateful for any help.

Static loops with fixed counts:

MYVIEW:

var tree = new sap.ui.commons.Tree(this.createId("firstTree"),{
                          title: "{pathOfHeadervalue}",
                          showHeaderIcons : true,
                          showHeader: true,
                });
                var index = 0;                
                for (var i = 0; i < 5; i++)
                      {
                          var node = new sap.ui.commons.TreeNode(this.createId("node_")+i);
                          node.setText(this.createId("node_")+i);
                          for(var j = 0; j < 3; j++)
                                {
                                    subnode = new sap.ui.commons.TreeNode(this.createId("node_") + i + "_" + j, {
                                              text: "{pathOfHeaderValue/"+ (index++) + "/Value}",
                                              expanded: false
                                    });     
                                     alert(subnode.getText());     //this is empty !!!
                                    node.addNode(subnode);
                                }
                          tree.addNode(node);                          
                      }    

  many thanks for an answer

chris

[Former Member]

by exploring the api an much trial and error , i get a flat tree structure of an existing xmlmodel. in this case {path} is from the model binding to the element 'firstTree' in controller. But how can i define the tree more dynamically and with deeper structure ?

// Treenode used for every entry in the model
                var nodeTemplate = new sap.ui.commons.TreeNode({
                          text: "{Path/text()}",
                          expanded: false
                })
// tree with aggregation nodes;
                var ltree = new sap.ui.commons.Tree(this.createId("firstTree"),{
                          title: "{path}",
                          showHeaderIcons : true,
                          showHeader: true,
                          nodes: {path: "/", template: nodeTemplate}
                });  

Kind regards

Chris