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I’ve created more customized Data View Web Parts (DVWPs) than I could possibly count, but I still learn new stuff all the time. Tonight I was trying to get a DVWP to switch into DataSourceMode=”CrossList” and I accidentally noticed a nice little trick.
If you right-click on the DVWP and select Properties, a Tag Properties Task Pane will open up, probably in the bottom left or bottom right of your SharePoint Designer screen. If you click on the DataSource section, it’ll look something like this:
Note that the SelectCommand which I’ve highlighted is shown unescaped It seems that you can make edits there and SharePoint Designer will pass them into the DataSource section escaped, just as it must be.
I’ve used Notepad or XML escape Web pages or XML escaping apps to do this for years, and it turns out that SharePoint Designer would have done it for me all along. If that’s in some documentation somewhere, I challenge you to find it!