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Posts: 614
Registered: ‎10-17-2010
My Device: (BlackBerry Z10)-> Q10/Passport Dual Use

Assigning Unique IDs to Nested Repeater Components & Manipulating Dynamically Generated Components

Hello. I am using the Repeater Class (from https://github.com/blackberry/Cascades-Samples/tree/master/repeater) to make a grid of components. I need  to assign unique row and column IDs to descending Containers.


Like So. Here is a visual sketch.


// ---------------------------------------------------------------------------------------
// ROW1COL1      |     ROW1COL2     |     ROW1COL3     |     ROW1COL4     |     ROW1COL5
// ---------------------------------------------------------------------------------------
// ROW2COL1      |     ROW2COL2     |     ROW2COL3     |     ROW2COL4     |     ROW2COL5
// ---------------------------------------------------------------------------------------
// ROW3COL1      |     ROW3COL2     |     ROW3COL3     |     ROW3COL4     |     ROW3COL5
// ---------------------------------------------------------------------------------------
// ROW4COL1      |     ROW3COL2     |     ROW4COL3     |     ROW3COL4     |     ROW3COL5
// ---------------------------------------------------------------------------------------

   id: allComponents
Repeater {
      // rows
       model: 4
            preferredWidth: 768
            preferredHeight: 200
            layout: StackLayout{
                orientation: LayoutOrientation.LeftToRight 
                //each column
                model: 5
                    // I WANT TO ASSIGN ROWXCOLY ID HERE
                    preferredHeight: 200
                    preferredWidth: maxWidth
                    layoutProperties: StackLayoutProperties {
                         spaceQuota: 5
                    layout: DockLayout{}
                        text: "COL" + index
}//end allComponents


I will be modifying properties of various components within the Repeater container.



Question 1: How Do I assign the Unique IDs based on row & column?

See code snippet above


Question 2: Let's say I edit a property of ROW1COL2 during my application. How do I restore the properties of ROW1COL2 or all of the ROW/COL components inside the Repeater class? clear every property to its original form.


See code snippet above


Question 3: How do I determine if any number of rowcolumns have X property and then get their ID?


Query which Containers within allContainers have a background of Color.Black for example or to return container IDs that do not match the properties I'm looking for?

See code snippet above



I hope I'm making sense.

Thank you for your help.