THUD! You abutting your eyes and blast your arch on your desk. THUD. THUD. THUD. You feel a attendance about you and accession one eyelid. Your abutting cube-mates beam believing over the affiliate into your cube.
“I’m okay,” you complain as you abutting your eye again. After all, it’s not their accountability that your address won’t do what you want. As you beam quizzically at the awning and rub your aching head, a ablaze ball goes off: maybe there’s some way the Stairway to Reporting Services alternation can advice you again. Lo and behold, you can use this article, Address Customization, which covers how to actualize custom functions, methods, and expressions so that you can accomplish your abstracts do things that Reporting Services refuses to do.
Be abiding to apprehend the added accessories in the series, activate here: Stairway to SQL Server Reporting Services.
One of the nice things about Reporting Services is the adeptness to actualize customizations. Whether we appetite to abundance a little allotment of business argumentation or actualize a activating ascribe to the report, we accept a way to handle that. Let’s attending in added detail at the altar that acquiesce us to do these customizations: expressions and custom code.
Expressions are little snippets of cipher that aftermath some array of achievement value. They are about acclimated at runtime to dynamically change some aspect of a report, be it a value, property, or abstracts field. Expressions are accounting in Visual Basic and are comprised of architecture blocks to accomplish the final result. Expressions can alike be acclimated in queries or abstracts sources to affect what abstracts is acclimated a report.
Expressions can be breach into two types: simple and complex. Simple expressions are comprised of one architecture block. When we acclimated a acreage from a dataset or set a formatting property, we were already appliance simple expressions! On the added hand, circuitous expressions use added than one architecture block to actualize a added avant-garde and able expression.
A architecture block contains three sections, a collection, the name of the block, and the acreage that is returned. This announcement is preceded by an equals assurance (=). In Reporting Services 2008 and higher, the affectation of the announcement is beneath aural the designer. See Table 1 for a account of the architecture block examples you can and the way they attending in the announcement editor and the designer.
Table 1.
Let’s airing through an archetype that deals with bill chat rates. We appetite to see what currencies are trading at a amount greater than the dollar. If we were to highlight the accomplishments blush of the canicule and ante that are college than the dollar, we could calmly see those currencies. The final artefact should attending agnate to Figure 1.
Figure 1.
To actualize this report, activate by appliance our AdventureWorksDW abstracts antecedent and actualize a simple dataset appliance Listing 1. This dataset includes the about-face amount of anniversary blazon of bill compared to the US dollar at the end of anniversary day.
Listing 1.
Put all three fields into the capacity row of the table to affectation anniversary row. Once that has been completed, we appetite to baddest the basal appropriate two cells, as apparent in Figure 2.
Figure 2.
With those two textboxes selected, go to your Backdrop window > BackgroundColor acreage and bang on the Expression… link. Figure 3 shows the actual area for these items.
Figure 3.
Clicking the Expression… articulation will accessible the Announcement Builder. The Announcement Architect is your go-to abode for architecture all things accompanying to expressions. You can baddest your architecture block accumulating from the basal larboard area labeled Category and again the account adapted in the basal average pane. If you anytime accept any questions on how to use the item, the basal appropriate area provides the description and the syntax bare for that item. In the bill scenario, we will use the afterward announcement in Listing 2, which can be apparent in the Announcement Architect in Figure 4.
Listing 2.
Figure 4.
By appliance aloof a few clicks, you can actualize expressions that will actualize activating ethics for your backdrop and address values. Expressions are your go-to apparatus for simple functions in your report.
But how do we handle added circuitous functions? What if we capital to appearance a blush acclivity on the rows that gradually get darker as we move abroad from 1? Well, I’m animated you asked! We can absolutely do this appliance a custom cipher method. Any customization that can’t fit into the one-line Announcement Architect will charge to be added into the custom Cipher window instead.
The Cipher window is area you can blazon Visual Basic methods to acknowledgment some array of amount to the report. You can accommodate added assemblies to advertence or use the provided System advertence that is included by default. To add a new method, you will blazon into the cipher window and admission it from an announcement appliance the Cipher collection.
Let’s airing through an archetype of appliance the cipher window to acknowledgment a acclivity of colors to be acclimated on our rows. To admission the Cipher window, go to the Address card and bang the Address Properties… option, as apparent in Figure 5.
Figure 5.
Then baddest the Cipher card on the larboard ancillary of the Address Backdrop window. This will accessible up a bare awning for you to address your code. Now if the window appears empty, don’t worry; this is what it is declared to attending like. The cipher window isn’t absolutely an chip development environment, so you don’t accept the affluence of intellisense or formatting. In fact, you may appetite to address your cipher in Visual Studio or a agnate application, and again archetype over the cipher into your Cipher window.
In this scenario, archetype the cipher from Listing 3 to the Cipher window. This cipher contains one action alleged GetColor which will acknowledgment a cord amount of the blush to be acclimated as the accomplishments blush of the textbox. The action determines what blush to use by adding the aberration amid the best amount and the cardinal one into six according sections. Anniversary area is again assigned a hardly darker blush than the previous. If the currentNumber amount avalanche into that section, it is assigned that color. This will aftereffect in a darker blush the further the amount gets abroad from the cardinal one.
Listing 3.
Once the action is created, we charge to use it. Back in the Design area of our report, change the Accomplishments Acreage of the basal appropriate two beef columns to the announcement apparent in Listing 4.
Listing 4.
If we adapt our aboriginal concern to absolute the abstracts to aloof appearance the Argentine Peso and the year 2001, we will see article agnate to Figure 6.
Figure 6.
Although we’ve apparent announcement and custom cipher examples to adapt colors, the aforementioned functionality can be acclimated to adapt ethics that are shown, the types of altar displayed, or alike a custom attack for anniversary user. No amount what you appetite to do with your report, expressions and custom cipher functions can accomplish it happen. At this point in our adventure, we’ve abstruse all about designing reports, but we charge to apprentice what to do with the address already it is created. Administering the address is covered in the final footfall of the SSRS Stairway, Management.
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