I am receiving a warning whenever I attempt to add a Label Control and a DropDownList to a FormView. I have added both the Label Control and the DropDownControl to all the templates (Edit, Insert, Item) and have the controls linked to a SqlDataSource. When I'm done configuring the FormView's custom SQL statement, it ask me the following:

Would you like to regenerate the FormView templates and datakeys using the selected data source schema? Warning: this will delete the existing templates"??

I do not have a development server, only a production server, so I'm really hestitant to click "yes", as I'm unsure what that will exactly do to my other pre-existing controls on the templates. I have looked online for more information regarding what this action will exactly do to my templates (Edit, Item, Insert), however I've had little luck.

I'm very new to web site development as you can probably tell.

Any help or comments would be greatly appreciated.

Amanda

Hi there,

The various templates in the FormView are based on the columns you are selecting in the SqlDataSource. If you make changes to that data source, VS isn't sure if the templates still match the code, and thus offers to regenerate.

If you're only adding a new column, you can click No, and manually modify the templates.

I would recommend clicking Yes at least once as well, just to see what changes. Changes are not saved automatically, and you can always click Undo.

Hope this helps,

Imar

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Imar Spaanjaars
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Author of Beginning ASP.NET 4.5 : in C# and VB, Beginning ASP.NET Web Pages with WebMatrix
and Beginning ASP.NET 4 : in C# and VB.
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