>>I am thinking of how better organize some files in the ASP.NET 4.0 project. The project will use datasets (xsd) files. So my questions are:
>>1. Will I have to copy the .xsd file to the customer server when deploying the application?
>>2. Is it a good idea to create a separate folder for all DataSets (xsd) that will be used in the project?
>>TIA
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>I created a folder (in the application folder of VS 2012) Data_sets (so my directory tree is now App_Name\Data_Sets. Then I copy dataset file MyDataSet.xsd to the folder Data_Sets. Then I add an existing item (Data Set) to the Project. So in the VS tree I see the folder Data_sets and the dataset MyDataSet. But how do I use this dataset in the code? For example, the following does not work:
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>MyDataSet dstMyData;
>// VS does not find MyDataSet
>

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>How do I refer in the code that the dataset is not in the application root folder but in the sub-folder?

IIRC when you create any file in a sub-folder then, by default, the folder name is appended to the namespace so in your case the Dataset namespace would be ......Data_sets.MyDataSet. If you don't want that to happen then, after creating the folder open its Properties window and set 'NameSpaceProvider' to false.