Examples of com.smartgwt.client.widgets.form.fields.CanvasItem.storeValue()

com.smartgwt.client.widgets.form.fields.CanvasItem.storeValue()

Store a value for this form item. This method will fire standard {@link com.smartgwt.client.widgets.form.fields.FormItem#addChangeHandler FormItem.change} and {@link com.smartgwt.client.widgets.form.fields.FormItem#addChangedHandler FormItem.changed} handlers, and store out the methodpassed in such that subsequent calls to {@link com.smartgwt.client.widgets.form.fields.FormItem#getValue FormItem.getValue} or {@link com.smartgwt.client.widgets.form.DynamicForm#getValue DynamicForm.getValue} will return thenew value for this item.

For canvasItems that manipulate values and display them in some arbitrary canvas representation developers should call this method when the user interacts with the embedded canvas in a way that modifies the value for the item.

If you cannot easily detect changes to values in your Canvas, a workaround is to call storeValue right before the form saves. @param value value to save for this item

                        public void onSelectionUpdated(SelectionUpdatedEvent event) {
                            ListGrid grid = (ListGrid) event.getSource();
                            CanvasItem item = grid.getCanvasItem();
                            ListGridRecord record = grid.getSelectedRecord();
                            if (record != null) {
                                item.storeValue(record.getAttribute(item.getFieldName()));
                            } else {
                                item.storeValue((com.smartgwt.client.data.Record)null);
                            }
                        }
                    });

                            CanvasItem item = grid.getCanvasItem();
                            ListGridRecord record = grid.getSelectedRecord();
                            if (record != null) {
                                item.storeValue(record.getAttribute(item.getFieldName()));
                            } else {
                                item.storeValue((com.smartgwt.client.data.Record)null);
                            }
                        }
                    });
                    
                    ((CanvasItem) item).setCanvas(grid);

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