2013 SharePoint复习 -- CAML

1. CAML in Library

a. 查询文档库时，文件的Name属性对应的内部名称是“FileLeafRef”;

b. 需要查询所有内容时（包括文件和文件夹），可使用以下代码（注意此处的scope是RecursiveAll）：　

string sQuery = @"<Where>
                        <IsNotNull>
                            <FieldRef Name='FileLeafRef' />
                        </IsNotNull>
                </Where>";
string sViewFields = @"<FieldRef Name=""Title"" /><FieldRef Name=""ID""/><FieldRef Name=""FileLeafRef""/>";
string sViewAttrs = @"Scope=""RecursiveAll""";
uint iRowLimit = 0;
var oQuery = new SPQuery();
oQuery.Query = sQuery;
oQuery.ViewFields = sViewFields;
oQuery.ViewAttributes = sViewAttrs;
oQuery.RowLimit = iRowLimit;
SPListItemCollection collListItems = oList.GetItems(oQuery);

c. 需要查询文件时，可以是使用如下代码（注意此处的scope是Recursive）：

string sQuery = @"<Where>
                    <IsNotNull>
                        <FieldRef Name='FileLeafRef' />
                    </IsNotNull>
                </Where>";
string sViewFields = @"<FieldRef Name=""Title"" /><FieldRef Name=""ID""/><FieldRef Name=""FileLeafRef""/>";
string sViewAttrs = @"Scope=""Recursive""";
uint iRowLimit = 0;
var oQuery = new SPQuery();
oQuery.Query = sQuery;
oQuery.ViewFields = sViewFields;
oQuery.ViewAttributes = sViewAttrs;
oQuery.RowLimit = iRowLimit;
SPListItemCollection collListItems = oList.GetItems(oQuery)

d. 如果不加任何scope，那么只能查询到文档库根目录中的内容；

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