caml查询中的空字符串列 [英] Empty string column in caml query

问题描述

如何过滤所有在caml查询中为空的列？这是我的代码;

Hi,

How can I filter all columns that are empty in caml query? here's my code;

spSiteDataQuery = new SPSiteDataQuery();
                   spSiteDataQuery.Query = "<Where><Neq><FieldRef Name=\"ContentType\" /><Value Type=\"Text\">" + "</Value></Neq></Where>";
                   spSiteDataQuery.ViewFields = "<FieldRef Name=\"Title\"/>" + "<FieldRef Name=\"FileRef\" />" + "<FieldRef Name=\"Modified\"/>" + "<FieldRef Name=\"Created\"/>";
                   spSiteDataQuery.Lists = "<Lists ServerTemplate=\"850\"/>";
                   spSiteDataQuery.Webs = "<Webs Scope=\"Recursive\" />";

                   dtPages = spWeb.GetSiteData(spSiteDataQuery);

它在
$ b中抛出异常$ b

it throws exception in

<value type ...></value>;

是

is

<IsNull></IsNull>;

返回相同的内容？

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