B4J Tutorial TreeTableView

Erel · Jul 13, 2017

TreeTableView is a new control added in B4J v5.80.

TreeTableView is very similar to TreeView where each item has multiple values instead of a single value.
Code:
Dim tti As TreeTableItem
tti.Initialize("tt", Array("Column 0 value", "Column 1 value", "Column 2 value"))
TreeTableView1.Root.Children.Add(tti)
The columns are set with the designer or by calling TreeTableView.SetColumns.

Note that unlike TreeView which only works with string items, TreeTableView items can be strings, numbers or nodes.

The second example shows how to use a layout file to create custom items:

Note that the rows heights are explicitly set in this case.
The second example also shows how to iterate over all the items.

little3399 · Jul 13, 2017

Great！

ShaneG30 · Jul 13, 2017

This looks to be an awesome control. It also looks way easier than the normal TableView.

However, there's a problem with RowHeight, this is the output from the example project ("TreeTableView2ndExample"):

B4J Version: 5.80 BETA #2
Parsing code. (0.00s)
Compiling code. (0.02s)
Compiling layouts code. (0.00s)
Organizing libraries. (0.00s)
Compiling generated Java code. Error
B4J line: 22
TreeTableView1.RowHeight = 50
javac 1.8.0_131
src\b4j\example\main.java:158: error: cannot find symbol
_treetableview1.setRowHeight(50);
^
symbol: method setRowHeight(int)
location: variable _treetableview1 of type TreeTableViewWrapper

Erel · Jul 14, 2017

I see. It will be fixed in the stable version.

Erel · Jul 16, 2017

It should work properly with beta #3.

dannythevii · Jul 17, 2017

thanks mr. Erel

rraswisak · Jan 28, 2019

Hi,

I found at example-2 has bug when we double-click the column divider to auto width by column text, the panel was missing !

This has been reported in this thread

Thank you

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B4J Tutorial TreeTableView

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Erel Administrator Staff Member Licensed User

Attached Files:

TreeTableViewExample.zip

TreeTableView2ndExample.zip

little3399 Active Member Licensed User

ShaneG30 Well-Known Member Licensed User

Erel Administrator Staff Member Licensed User

Erel Administrator Staff Member Licensed User

dannythevii Member Licensed User

rraswisak Active Member Licensed User