How do I get the Bricks created by an XRControl?

Joe P.

created 15 years ago

Is there an event I can listen to that gets fired when each Brick for a particular XRControl is created? The Draw event doesn't work for me because that doesn't get fired until the preview is actually shown. I'm looking for a way to access the Bricks earlier, either just after or during the call to CreateDocument().

Answers approved by DevExpress Support

DevExpress Support Team

created 15 years ago (modified 12 years ago)

Hi Joe,
Thank you for the report. Basically to accomplish this task you can use the XRControl.PrintOnPage event which occurs when the representation of a particular control is printed on the current page of the report. Alternatively you can handle the XtraReport.AfterPrint event to iterate through the all bricks using code similar to the following one:

C#
foreach (Page p in this.Pages)  
            {  
                DevExpress.XtraPrinting.Native.NestedBrickIterator iterator = new DevExpress.XtraPrinting.Native.NestedBrickIterator(p.InnerBricks);  
                while (iterator.MoveNext())  
                {  
                    VisualBrick visualBrick = iterator.CurrentBrick as VisualBrick;  
                    if (visualBrick != null)  
                       //Do some actions based on your requirements  
                }  
            }

Thank you,
Valery

Show previous comments (5)

Joe P. 15 years ago

Thanks for the info Valery.
How do I get the brick in the PrintOnPage event? I looked at the event arguments, and didn't see a way of getting the brick.

DevExpress Support Team 15 years ago

Hi Joe,
Thank you for the feedback. Please accept my sincere apologies if my previous answer was rather unclear to you. Please note that basically when you cast the sender object to a particular control type within the PrintOnPage event handler and change its properties (e.g. BackColor), actually you're changing corresponding properties of the visual brick representing this control. Let me know, whether this makes sense.
Thank you,
Valery

Joe P. 15 years ago

That makes sense, but I'm trying to get the actual instance of the brick so that I can build a list that maps each data row to the generated brick for a given XRControl. Is the only way to do this by iterating through all the bricks on the page as in your second example? Or is there a more direct way to get the bricks generated for a particular XRControl?

DevExpress Support Team 15 years ago

Hi Joe,
Unless I'm mistaken, you want to create some kind of a document map for your report, right? If so, I believe that there is more convenient way to accomplish this task via the XtraReport.Bookmark and XRControl.Bookmark properties. Please refer to the Fall Catalog demo in our Demo Center to see this approach in action. Otherwise please describe your actual task in greater detail. Then we'll do our best to provide you with an appropriate solution.
Thank you,
Valery

Joe P. 15 years ago

The bookmarks can give me the target bricks, but I also want to get the source bricks so I can link them to the targets.
Basically, I want to link the source brick to the target brick by going through the set of data rows that generated the source bricks. For each source data row, I would get the source brick and the related target data row. From the related target data row, I would get the target brick. Then I could link the source brick to the target brick.

DevExpress Support Team 15 years ago

Hi Joe,
Unfortunately, I don't quite understand the "source brick" conception?
However, I believe that you can use the approach shown in the How to insert page numbers for groups example : store the processing row in the XRConrol.Tag property in the BeforePrint event handler and get it by using Brick.Value property.
Please try this solution, and let us know the results.
Thanks,
Andrew

Joe P. 15 years ago

Hi Andrew,
The "source bricks" were just the bricks that I wanted to link from. I wanted to link those bricks to other bricks, and the way I figured out which bricks to link to was by how the data rows that generated the source bricks related to the data rows that generated the target bricks.
Setting XRControl.Tag = GetCurrentRow() in the BeforePrint event and enumerating through the bricks as shown in Valery's code example to get the data rows for each brick using the Brick.Value property worked for building a mapping between the data rows and the generated bricks.
Thanks to both of you for your help!

DevExpress Support Team 15 years ago

You're welcome, Joe!
Feel free to contact us in case of any further difficulty. We'll do our best to help you.
Thanks,
Valery.

Created: January 30, 2010 5:02 AM

Modified: February 9, 2010 5:58 AM

Platform: ASP.NET Web Forms WinForms Silverlight ASP.NET Core WPF Reporting

Product: Reporting for WPF Reporting for WPF Reporting for Web Forms Reporting for Silverlight Reporting for ASP.NET Core

IDE: Microsoft Visual Studio 2008

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How do I get the Bricks created by an XRControl?

Answers approved by DevExpress Support

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