Radar-Soft | VCL products news

New RadarCube VCL version: 1.12.0

Fri, 26 Jun 2009 17:07:17 GMT

New features:

Desktop: The Drillthrough method for OLAP cube has been added.

Bugs fixed:

In the event SetEditText, the EventArgs.Cell argument is always null;
In the Cube Editor a toolbar button click might cause the error;
In the Cube Editor's toolbar the buttons might not be blocked correctly;
A hierarchy icon is not changed on changing the hierarchy type.

New HierCube VCL version: 4.51.0

Tue, 28 Apr 2009 17:47:39 GMT

New features:

On changing the column width for a summary when Ctrl key is pressed, all corresponding columns for that summary change their width in the same way;
A grid with huge number of cells is now rendered faster.

Bugs fixed:

When changing a column width the row height is changed in a wrong way;
When calling on a context menu of a row/column an error may appear;
In Delphi 2007, 2009 when moving a mouse over the grid the scrollbar is flickering;
When calling on a "Drill into data cell" function in a cell context menu in Delphi 2009 an error may appear.

New RadarCube VCL version: 1.11.1

Tue, 24 Mar 2009 17:54:16 GMT

Bugs fixed:

When loading the grid from a file there might be a "general array error";
When deleting a grid out of a form the error may come up;
After changing the tabs in the Cube Editor, the cube structure tree might get unmatched with the corresponding hierarchy objects;
When adding a dimension there might be an error;
In Delphi 2007, 2009 the scrollbar and other areas of the grid might be flickering on mouse move.

New HierCube VCL version: 4.50.0

Thu, 19 Feb 2009 18:16:20 GMT

New features:

Delphi 2009 support
Some minor changes in the chart.

Bugs fixed:

The null values in the chart can be displayed like any random value that leads to the redundant nodes in the chart.

New RadarCube VCL version: 1.11.0

Tue, 17 Feb 2009 17:29:11 GMT

New features:

The data source support is now more stable.
Delphi 2009 support.

Bugs fixed:

If the data source is changed in the active cube then the exception occurs.
Loading the grid from a stream can lead to the error.
The error occurs when running a form with a cube that has been set to Active in design time.

New RadarCube VCL version: 1.10.1

Fri, 31 Oct 2008 11:04:49 GMT

New features:

The cube editor usability has been improved.
Documentation has been updated.

Bugs fixed:

If the cube schema only contains a single fact table then the exception "There is no source table defined for the "%s" measure" may sometimes occur.
Some data types are not accepted when trying to build a measure from them.
In the demo application some operations lead to the "access violation" exception.
The cube editor minor bugs.

Saving and Restoring RadarCube data

Thu, 09 Oct 2008 17:51:40 GMT

All RadarCube versions (WinForms, ASP.NET & VCL) share the same principle of saving its data that allows saving and later restoring of the Grid or the Chart state, including their current visual settings, as well as full Cube data (for Direct and Desktop versions only)... (Read more...)

New RadarCube VCL version: 1.10.0

Tue, 27 May 2008 00:00:00 GMT

New features:

The cube working speed has been boosted due to the significant core optimization.
New RadarCube context filtering abilities. Please see thefollowing articlefor details.
The overall API has been made as close to RadarCube Windows Forms as possible.
The custom measure modes can now be sorted by values. But this improvement caused the changing the signature of TOLAPGrid.OnShowMeasure event handler.See herefor the details.
The declaration of TCalcMemberArgs object has changed, which is passed in TOLAPGrid.OnCalcMember event handler as a parameter. Now there are two properties ReturnData and ReturnValue, containing formatted and not formatted values of the cell to calculate.
New object property TOLAPGrid.Serializer. Compatibility of the grid state streams with the NET version of RadarCube.
Two new measure display modes: the "Rank by row" and "Rank by column".
Desktop: The internal database is now stored on the disk instead of memory. This can significantly boost the performance on the big databases because of lack of windows swapping.
Desktop: new Cube Editor.
Desktop: The Load and Save methods have been changed to provide more flexible saving. The streams of the early versions won't be read because of that fact.

New HierCube VCL version: 4.49

Thu, 02 Aug 2007 00:00:00 GMT

New features:

Delphi 2007 support.
Documentation updated.

Bugs fixed:

Sometimes direct export to XLS files produces wrong file format, so that it cannot be opened by Excel. This especially occurs when there are many columns in the grid.
When the cube raises the "There's no connection to database" exception, it hides the original exception, that may be useful to find out the reason.

How to localize HierCube VCL

Tue, 17 Apr 2007 11:19:42 GMT

Here is an easy way to localize your HierCube library... (Read more...)

Types of dimensions

Tue, 03 Apr 2007 11:23:48 GMT

Types of dimensions... (Read more...)

HierCube VCL vs. RadarCube VCL

Mon, 02 Apr 2007 11:26:34 GMT

HierCube VCL and RadarCube VCL are very similar products intended for the same purposes. However, they differ in terms of functionality. Although that of HierCube is somewhat limited in comparison to RadarCube's, the former still is a low-price, but effective way to bring OLAP functionality into your applications, while the latter brings you the full range of options for data analysis... (Read more...)

Star schema

Tue, 20 Mar 2007 11:41:44 GMT

The star schema is the simplest data warehouse schema. Its main advantages are: direct and intuitive mapping between business entities analyzed by end users and the schema design, and highly optimized performance for typical data warehouse queries... (Read more...)

Snowflake schema

Tue, 20 Mar 2007 11:39:13 GMT

The snowflake schema of organizing data is more complex in comparison to a simple star schema. Graphical representation of the schema resembles a snowflake, hence the name. Snowflake schemas normalize dimensions to eliminate redundancy... (Read more...)

Locating a hierarchy member

Mon, 19 Mar 2007 14:15:11 GMT

All operations, fulfilled in the RadarCube library, deal with hierarchy members represented by the TMember objects. Thus, locating a hierarchy member is one of the important tasks for a programmer... (Read more...)

New HierCube VCL version: 4.48

Wed, 07 Feb 2007 00:00:00 GMT

New features:

New ability to change the default icon displayed in the internal grid. This can be done using the THierCubeGrid.OnDrawCell event handler. See description of the event for details.
Documentation updated.

Bugs fixed:

Sometimes the Fact Table Editor ends up with the "Out of memory" exception after clicking the "OK" button.
When the source data set is empty the Fact Table Editor doesn't even show up because of the "Out of memory" exception.

New HierCube VCL version: 4.47

Mon, 23 Oct 2006 00:00:00 GMT

New features:

Loading from a compressed stream is now 4 times faster. This is especially visibly on the large streams (10MB and above).
New event THierCubeGrid.OnCloseDimensionEditor allows getting to know if a user has changed something in the "Dimension Editor" window.
Documentation updated.

Bugs fixed:

An exception is raised in the demo application when double clicking a grid cell.
If the display name of a dimension is changed, all export components nevertheless put out the initial display name.