.NET Reporting: Cascading Parameters, Sub-Bands, and More (Coming soon in v14.2)

25 November 2014

Since we’re on a reporting binge this week I thought I would mention a couple of new features we are adding to the reporting core.

Cascading Parameters

Sometimes parameters depend on the values of other parameters. While this was technically possible before, it required a bit of coding. In v14.2 we are adding the ability to have cascading parameters.

Cascading Parameter Filter String Editor

Notice how the rightSideParameter uses the leftSideParameter value to filter the set of data that will be shown. The resulting parameter behaves as a sub-parameter (of sorts):


Cascading Parameter

Steve is now nowhere to be found in the cascaded parameter. This approach could also be used to create a master-detail type dependency within the parameters themselves!

Sub Bands

This feature solves a ton of issues when it comes to having conditional data within a given band. Consider the scenario where you have a collection of items but certain items have additional detail and/or elements that need to be rendered. A concrete example:

Student Report

When a student is older than 35 there is additional information that needs to be shown. This can include additional fields, a block of text, pretty much a new band that contains stuff (technical term). How would this be done currently? With a lot of work. With the introduction of sub-bands this task becomes super simple!

Sub Band Menu Item

This sub-band is part of the parent band but can be conditionally, well, anything. It can be colored a certain way, have a different font, or be hidden altogether. In our case we want to show additional information when the Student is over 35:

Sub Band Example

In this case we set the visibility of the sub band to false (by default) and add a formatting style rule to make the appropriate checks:

Sub Band Style Rule

and the rule:

Formatting Rule

The result is exactly what we were looking to do:

Resulting Report with Sub Bands

With this feature you could even create alternate versions of how the data should be visualized per row and use conditional styling to enable the sub band. Technically speaking you can have as many bands as you like!

Horizontal Anchoring

Take a look at this gem:

Horizontal Anchoring

That’s right – we have finally added horizontal anchoring to our report controls!

Anchoring Properties

In the case above, I set the the top table to anchor to both the left and the right (while the bottom table’s horizontal anchoring is set to None).

Table Improvements

I’m going to be honest here, working with tables in our reporting suite is not all that fun. Let me correct that, was not that fun. We are introducting a number of table improvements which should help a ton!


  1. The ‘Insert Column’ command now inserts a new column (having its width equal to that of the current cell) and shifts the table relative to the current cell in the corresponding direction (to the left, or to the right from the current cell). This new behavior is similar to that of the ‘Insert Row’ command.
  2. The ‘Insert Row Above’ command now inserts a new row about the current cell and changes the layout of the top part of the table. If there is sufficient empty space between the table and the band’s top edges, the table’s bottom part is left intact.
  3. Cell insertion has not been affected, except that the newly added cells now inherit the appearance properties of a source cell. The following properties were affected: BackColor, BorderColor, BorderDashStyle, Borders, BorderWidth, Font, ForeColor, Padding, and TextAlignment.
  4. The ‘Delete Column’ command now deletes a column and correspondingly changes the table width (by shifting the existing columns to the right from the one that is being deleted). Selecting a column and removing it by pressing the DELETE key has the same effect on the table layout (as opposed to the previous implementation when this resulted in cell removal and then resizing of cells located to the right from the current cell).

The following new features have also been implemented.

  • Pressing and holding the SHIFT key while resizing a column, changes the table width in the corresponding direction (the columns to the right from the current column are shifted to the left).

Shift Resize

  • Pressing and holding the CTRL key while resizing a column, changes the width of cells in the corresponding side of this column proportionally (to maintain their width relative to the overall table width), leaving the table dimensions intact.

Control Resize

Final Thoughts

Lest I forget! We have also added support to design-time report zooming when using the mouse wheel in conjunction with the control button. While a simple feature, I think it goes along with standard conventions and will help ease of use at design time.

Overall I think v14.2 is a really strong release for our analytics’ components. I hope you do too!

As always, if there are any comments and/or questions, feel free to get a hold of me!

Seth Juarez
Email: sethj@devexpress.com
Twitter: @SethJuarez

13 comment(s)
Gustavo Marzioni

SubBands! at least!

Thanks !

25 November, 2014
Jonatas Hudler

SubBands! at least! (2)


25 November, 2014
Nate Laff

Some great features in this release for reporting! These are great, plus the continuous pages (for receipt printers) -- all great stuff!

25 November, 2014
Mark Bissett 2

These are really fantastic additions to the reporting suite, especially the sub-bands. Many thanks for all the improvements.

26 November, 2014
Mark Harby

Yeah, sub-bands. Awsome

26 November, 2014
gabriel caro

Great news!..

26 November, 2014
Edhy Rijo

Hi Seth,

Great news, thanks to the team for the continue support and enhancements to the suite.

26 November, 2014

Sub bands and table improvements.  This is great news...

26 November, 2014

Sub bands and table improvements.  This is great news...

26 November, 2014
Noufal Aboobacker 1

Nate Laff mentioned continuous pages (for receipt prints) what is that new feature by the way?

29 November, 2014
George (DevExpress)

@Noufal: This is the capability to print a report on roll paper (to learn more about this feature, please see the following issue details: www.devexpress.com/.../S50061)

1 December, 2014

Table improvements are a much welcome addition! :)

Question about sub band: except for the formatting rules, what features does it bring that makes it a better choice than subreport band?

2 December, 2014
AndrewK (DevExpress)

There are reports where certain bands contain lots of controls. In these cases using sub-bands also looks reasonable. It is easier to operate with a large number of controls if you put them into several sub-bands.

3 December, 2014

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