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    <p>I got this going with a bit of work using the <code>Lookup</code> function. This is 2008R2 and above only, but the fact that you're already looking at <code>Globals!RenderFormat.Name</code>, which is also 2008R2 and above implies this is OK.</p> <p>My first thought was to something like:</p> <pre><code>=Lookup(Globals!RenderFormat.Name , Fields!RenderFormat.Value , Fields!Color.Value , "Colors") </code></pre> <p>But this threw an error.</p> <p>However, as a workaround I set up a textbox in the report to display <code>=Globals!RenderFormat.Name</code> and then based the expression on the report item:</p> <pre><code>=Lookup(ReportItems!Textbox1.Value , Fields!RenderFormat.Value , Fields!Color.Value , "Colors") </code></pre> <p>For some reason this works fine where the other failed.</p> <p>You can set the textbox which displays the render format to hidden if required.</p> <p>Other options... Typically for styling you have the database approach which you're already using and doing this through embedded report code, or a DLL deployed on the server.</p> <p>Just embedding code in the report doesn't really help give you the dynamic styling you need, which leaves the DLL option.</p> <p>This would involve creating a DLL with some simple function that could return colour values based on a parameter, i.e. the render format global variable.</p> <p>The advantage with this is that there is only one code base so updating the DLL would apply it to all reports on a server.</p> <p><a href="http://www.sqlservercentral.com/articles/Reporting+Services+%28SSRS%29/65811/" rel="nofollow">This</a> blog post has some details on how to implement this with a server-side DLL.</p> <p>The disadvantage is that it's complicated and does involve getting the DLL running on the server, which is not always trivial.</p>
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