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Creating a new TreeView DataWindow
362 DataWindow .NET
If you selected the Grid Style check box, vertical and horizontal grid lines
display:
Here is the sample TreeView DataWindow object in the Preview view:
Using an expression
for a column name
If you want to use an expression for one or more column names in a TreeView,
you can enter it as the TreeView definition on the General page in the
Properties view after you finish using the TreeView wizard.
❖ To use an expression for a TreeView column name:
1 Open the Properties view and click the TreeView level band in the Design
view.
2 Click the ellipsis button next to the TreeView Level Definition box on the
General page in the Properties view to open the Specify Group Columns
dialog box.
3 In the Columns box, double-click the column you want to use in an
expression.
The Modify Expression dialog box opens. You can specify more than one
grouping item expression for a group. A break occurs whenever the value
concatenated from each column/expression changes.