SelectableListTableContentProvider header order

Luis_Henrique1 · April 8, 2016, 5:57pm

Hello,

I have a SelectableListTableContentProvider that the user can sort all values by selecting on headers, like this image (header1.png)

How can I restart this sorting, using a button action? I tried to set all values null or empty, but i got exception.

Thanks!

system · April 8, 2016, 6:14pm

You would want to find the column controls and set the ordinal and ascending properties appropriately.

For example, something like this:


UIComponent component = findComponentInRoot("tableIdHere");
if (component instanceof UIData) {
	UIData dataTable = (UIData)component;
			
	//the column to make the primary sort column
	String idToSortBy = "columnIdHere";
	//which direction to order by
	boolean isAscending = true;
	for (Iterator<UIComponent> it = dataTable.getChildren().iterator(); it.hasNext();) {
		UIComponent child = it.next();
		if (child instanceof IExtendedColumn) {
			IExtendedColumn column = (IExtendedColumn)child;
			if (idToSortBy.equals(child.getId())) {
				//make this the primary sort column
				column.setOrdinal(1);
				column.setAscending(isAscending);
			} else {
				//don't sort by this column
				column.setOrdinal(0);
			}
		}
	}
}

Luis_Henrique1 · April 8, 2016, 6:30pm

Eric, thanks for reply.

No, I just want to set the header for original status. The values I will call a refresh action on my connector.

Thanks!

system · April 8, 2016, 6:33pm

I’m not following what you are saying.

Can you provide any additional details?

Luis_Henrique1 · April 8, 2016, 6:39pm

Sure.

Looking at the image, the user sorted all table values selecting on header.

Now, I have an action button that needs to clean this header selection and clean all values in table.

To clean all values that’s ok, but I don’t know how to clean the header selection.

Thanks!

system · April 8, 2016, 6:42pm

That’s basically what the snippet I provided does. It will reset the sort/order state of the columns to make one of the columns the primary sort column and clear any sort state from the other columns.

Luis_Henrique1 · April 8, 2016, 8:26pm

I have put this code on the onClick action Button and didn’t work, the button have no more action

system · April 8, 2016, 9:21pm

The code snippet I provided is server side java code that could be run in the action handler method for a command button.

The onClick value for a button is client-side javascript. The column sort state can not be changed for multiple columns at the same time from javascript.

Luis_Henrique1 · April 8, 2016, 9:40pm

It worked!!!

Thank you, Eric!

Luis_Henrique1 · April 11, 2016, 9:54pm

Eric, can I ask you one more thing?

It’s possible to select none values on table?

For example, I have selected some lines using checkbox, when I click on action button, all checkboxes needs to be cleared, like when I click on select none on “Select all rows checkbox”.

Thanks

system · April 11, 2016, 10:04pm

Sure. From the server-side java code, get your table content provider and call the API to set the selected row ids to an empty collection.

For example:


tableProvider.setRowSelectedIds(Collections.emptyList());

Or from client-side script code, get your table model and call the API to unselect all items :


var tableModel = CAF.model('#{caf:cid("yourTableId")}');
tableModel.selectNone();

References:

Prasad_Pokala · April 11, 2016, 10:05pm

Hi Luis,

You can set the selected row ids to null using the table provider as shown below:

getTableResultProvider().setRowSelectedIds(null);

Luis_Henrique1 · April 11, 2016, 10:20pm

It worked!
Thank you Eric and Prasad!!