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Where to include a web components css file when integrating a third party w by Martin Vyšný, 1 week ago
Recent Posts
Vaadin Forum3. Vaadin 6, 7, 8Framework UI

Message over table when empty

Oliv Mor
10 years ago Feb 10, 2012 2:42pm

Hi,

I'm looking for a way to display a message into empty table. The table is designed to display result of a search, but if there is none, the user doesn't know if the search is delayed or the search is done but there are no result.

I've try this trick, using CSS, but i'm not sure this is the best way to achieve my goal:

Table table = new Table();
...
TextField searchTF = new TextField();
searchTF.addListener(new ValueChangeListener()
		{
			public void valueChange(ValueChangeEvent event)
			{
				table.setContainerDataSource(searchObject(searchTF.getValue()));
				if (table.getItemIds().isEmpty())
				{
					table.setStyleName("empty");
				}
				else
				{
					table.setStyleName("");
				}
			}
		});

and the linked CSS:

.v-table-empty .v-table-body {
	background-image: url('sorry_empty.png');
	background-repeat: no-repeat;
	background-position: center center;
	background-color: red;
}

Any comment would be welcome.

Oliv'

Last updated on Feb, 10th 2012
Oliv Mor
10 years ago Feb 17, 2012 2:22pm

Hi,

Well I've slightly improved to code, using filter features instead of create a new container...

public Example() {

table = new Table();
...
// The search textfield
filterBepTF = new TextField();
filterBepTF.addListener((TextChangeListener) this);

}

public void textChange(TextChangeEvent event)
	{
		Filterable f = (Filterable) table.getContainerDataSource();
		f.removeAllContainerFilters();

		String searchString = event.getText();
		if (searchString != null && searchString.trim().length() != 0)
		{
			AbstractJunctionFilter filter = null;
			for (String part : searchString.trim().split(" "))
			{
				if (filter != null)
					filter = new And(filter, new Or(new SimpleStringFilter(BrowserTable.PROPERTY_NAME, part, true, false), new SimpleStringFilter(
							BrowserTable.PROPERTY_KIND, part, true, false)));
				else
					filter = new Or(new SimpleStringFilter(BrowserTable.PROPERTY_NAME, part, true, false), new SimpleStringFilter(BrowserTable.PROPERTY_KIND,
							part, true, false));
			}

			f.addContainerFilter(filter);
		}

		if (table.getItemIds().isEmpty())
		{
			table.setStyleName("empty");
		}
		else
		{
			table.removeStyleName("empty");
		}

	}

And the style.css:

.v-table-empty .v-table-body {
	background-image: url('no_result.png');
	background-repeat: no-repeat;
	background-position: center center;
}

Any feedback would be appreciate....

Last updated on Feb, 17th 2012
+1
Mathias Clerc
10 years ago Feb 20, 2012 4:29am

This seems like a quite useful feature and could be a nice add-on if you have the time to wrap it up ^^

mrunal lohar
6 years ago Sep 06, 2015 4:11pm

Hi,

I am using vaadin 7.5 and trying to show message "No results found." on vaadin grid if no contents to display. I read above thread but didnt get exactly what to do.

Please advice.

Thanks
Mrunal

Adam Jilling
5 years ago Jul 18, 2016 6:22pm

mrunal,

table.getItemIds() will return a collection of all the row indices, therefore if a table is empty it will return ""

table.getItemIds().isEmpty()

will return true if the table is empty, false otherwise.

Nikolay Artamonov
5 years ago Apr 12, 2017 12:34pm

After 5 years we still haven't any solution from framework for such basic need :-( I've created issue for that case.