table add new column dynamically

Vaadin 6 / 7 / 8 Framework UI
1

Hi,

Is it possible to add new column to table with containerDataSource(SQLContainer)? In this added column user puts new data and I save these data as new row in table. I found method addGeneratedColumn but I cannot understand how can I implement adding new column virtually…

I devised other idea for it. I write dynamically created textfields with labels on Panel like that:

label1 textfield1 label4
label2 textfield2 label5
label3 textfield3 label6

These labels contains data from DB.

But this solution is ugly…

Best regards,
Paul

2

Not sure how the SQL container would react to it but you can try container.addContainerProperty(propertyId, type, default); and see if it works or not.

3

Hi,

I tried do with your solution but it doesn’t work. I’ve got exception:

java.lang.UnsupportedOperationException
at com.vaadin.data.util.sqlcontainer.SQLContainer.addContainerProperty(SQLContainer.java:1341)

I put in code:
TableQuery tq = new TableQuery(“table1”, connectionPool, new MSSQLGenerator());
container = new SQLContainer(tq);
container.addContainerProperty(“test1”, Label.class, null);

I tried add:
table.setEditable(true);
table.addContainerProperty(“test1”, Label.class, “-”);

And I’ve got the same error:

java.lang.UnsupportedOperationException
at com.vaadin.data.util.sqlcontainer.SQLContainer.addContainerProperty(SQLContainer.java:1341)

I tried search on archive forum, I found:

https://vaadin.com/book/-/page/components.table.html#components.table.columngenerator

But it doesn’t have container data source like that: SQLContainer.

Best regards,
Paul

4

I don’t know exactly what you mean but the following should work:

table.addGeneratedColumn("mycolumn", new ColumnGenerator() {
	public Object generateCell(Table source, Object itemId, Object columnId) {
		TextField tf = new TextField();
		return tf;
	}
});