It's not a happy job to write caml query xml to return data from shrepoint list. So , I write the tool to make it easy.
the code example:
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using Microsoft.SharePoint;
using CodeArt.SharePoint.CamlQuery;
SPSite site = new SPSite("http://jyserver:81");
SPList list = site.RootWeb.Lists["Notice"];
QueryField field1 = new QueryField("标题",false); //the second parameter explain if the first parameter is a internal name.
//or : QueryField field1 = new QueryField("Title"); //"Title" is a internal name.
TypedQueryField<DateTime> field2 = new TypedQueryField<DateTime>("Expires");