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    <p>Assuming you already have a .dll - Place your dll in the report designer folder (where your RDL is) and the report server folder, somewhere around here: </p> <pre><code>Program Files\Microsoft Visual Studio 8\Common7\IDE\PrivateAssemblies Program Files\Microsoft SQL Server\MSSQL.3\Reporting Services\ReportServer\bin </code></pre> <p>Now add a reference to your dll from your report.<br> With your report open go to Report, Report Properties, References, Add reference, browse to your dll and add it.</p> <p>Now in a text box properties Value call a method of your dll. It should look something like this:</p> <pre><code>=MyDllName.ClassName.MyMethodOrSubOrWhatever </code></pre> <p>This is a great article that can walk you through this:</p> <p>Assuming you already have a .dll - Place your dll in the report designer folder (where your RDL is) and the report server folder, somewhere around here: </p> <p>Program Files\Microsoft Visual Studio 8\Common7\IDE\PrivateAssemblies Program Files\Microsoft SQL Server\MSSQL.3\Reporting Services\ReportServer\bin</p> <p>Now add a reference to your dll from your report.<br> With your report open go to Report, Report Properties, References, Add reference, browse to your dll and add it.</p> <p>Now in a text box properties Value call a method of your dll. It should look something like this: =MyDllName.ClassName.MyMethodOrSubOrWhatever</p> <p>This is a great article that can walk you through this: <a href="http://support.microsoft.com/kb/920769" rel="nofollow">http://support.microsoft.com/kb/920769</a></p> <p>P.S. Another option, if you don't want the web server doing the heavy lifting, is to use stored procedures. However, in our experience with very large database systems, it is much easier to scale up the web servers than it is to scale up the database servers so we do much of the heavy lifting on the web servers. </p>
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    1. POUsing external assembly's method's results as a dataset
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    1. USBClaydon
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    1. COthanks but I wanted to have the method result of the external assembly as a dataset, not point a textbox to a piece of data. The method in the assembly returns a dataset. And doing a stored procedure would require using CLR stuff on the database so it can use our businesslayer to do the compliation, which is certainly an option but we wanted to explore some other options.
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    2. COI don't have an assembly to test with, but I would try Add New Dataset > Query type: Text > Function > =MyAssmbly.Etc.. The data should pass parameters and expect a data table back. Now I want to know so as soon as I have some spare time I'm going to toss together a test :) I guess the function would have to call the assembly with command line parameters such as /myDllParamFoo = @myRdlParamFoo /myDllNextParam = myNextRdlParam
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