Cascades Development

[josepatience]

Hi,

I would like to know  how to save a list item using the XmlDatamodel into another xml file.

Thanks.

[Zmey]

This doesn't seem to be possible.

You'll have to extract the data item by item and write it to the file using QXmlStreamWriter or some other class.

  QFile file(filename);
  file.open(QIODevice::WriteOnly);

  QXmlStreamWriter xmlWriter(&file);
  xmlWriter.setAutoFormatting(true);
  xmlWriter.writeStartDocument();

  xmlWriter.writeStartElement("ELEMENT");
  xmlWriter.writeStartElement("SUBELEMENT");
  xmlWriter.writeTextElement("State", "state");
  xmlWriter.writeEndElement();
  xmlWriter.writeEndElement();

  xmlWriter.writeEndDocument();

  file.close();

Another way is to implement your custom datamodel to perform both XML parsing and saving. This is a cleaner approach but harder to implement.

[josepatience]

Thanks for the response. this is what I have. This what I tried based on your reply can you please advise.

import bb.cascades 1.0

Page {
     actions: [
                // create navigation panel actions here
                ActionItem {
                    title: qsTr("Create a report")
                    onTriggered: {
                        imgView.imageSource = "asset:///images/picture1br.png"
                    }
                }
            ]
    Container {
        id: listCt
        // the childcount for the list item
       property alias listChildCount: chList.childCount
       property alias radioSelection: radioGp.selectedIndex
       ListView {
           id: chList
                   dataModel: XmlDataModel {
                       source: "models/Chapter2.xml"
                   }
                    
                   listItemComponents: [
                       ListItemComponent {
                           type: "header"
                           Header {
                               title: ListItemData.title
                       }
                       },
                       ListItemComponent {
                           type: "listItem"
                       Container {
                        layout: DockLayout {}
                        
                        LabelLabel {
                            text: ListItemData.title
                            bottomPadding: 50.0
                            leftPadding: 150.0
                        }// end of LabelLabel
                        RadioGroup {
                            id: radioGp
                            dividersVisible: false
                            preferredWidth: 150
                            minWidth: 149.0
                            Option {
                                id: option1
                                text: "H"
                            }
                            Option {
                                id: option2
                                text: "M"
                            }
                            Option {
                                id: option3
                                text: "L"
                            }
                            // When a new option is selected, we print the selection to the console.
                            onSelectedValueChanged: {
                                console.debug("New filling set: " + selectedValue);
                                if(selectedIndex >= 0) {
                               radioIndex = radioGp.selectedIndex
                            }//endif
                        }//end onSelected
                    }//end radioGroup          
                    Divider {} // at the end of each list item   
                } // end of Container
            } // end of second ListItemComponent
        ] // end of listItemComponents list
        // When an item is selected, update the text in the TextField
        // to display the status of the new item
           onTriggered: {
                var selectedItem = dataModel.data();
                var page = getSecondPage();
                  secondPage.xmlWriter.setAutoFormatting(true);
                  seondPage.writeStartDocument();
                  seconPage.xmlWriter.writeStartElement(selectedItem);
                    xmlWriter.writeTextElement("State", radioIndex);
                    xmlWriter.writeEndElement();
                    xmlWriter.writeEndElement();                  
                    xmlWriter.writeEndDocument();
                    file.close();          
            }// end onTriggered
             property Page secondPage
                function getSecondPage() {
                   if (! secondPage) {
                 secondPage = reportFile.createObject();
                  }
                  return secondPage;
              }
            attachedObjects: [
            ComponentDefinition {
            id: reportFile
            source: "../models/report.qml"
            }
            ]           
      } // end of ListView
   } 
}

 Thx