Query Options的一些用法（2）: 包含附件路徑

 

接著上一篇：Query Options的一些用法（1）: 展開使用者列資訊。

這次增加了兩條新的列表記錄。第二條沒有附件，第三條有2個附件，並且給第一條記錄增加了一個附件。

在View fields增加附件的引用。這樣可以顯示附件資訊。

static XmlNode ViewFields

{

get

{

XmlElement viewFields = _camlDoc.CreateElement("ViewFields");

System.Text.StringBuilder viewFieldsSB = new System.Text.StringBuilder();

#region View Fields

viewFieldsSB.Append(" <FieldRef Name=\"Title\" />");

viewFieldsSB.Append(" <FieldRef Name=\"Attachments\" />");

viewFieldsSB.Append(" <FieldRef Name=\"Author\" />");

viewFieldsSB.Append(" <FieldRef Name=\"Editor\" />");

#endregion

string sResult = viewFieldsSB.ToString();

viewFields.InnerXml = viewFieldsSB.ToString();

return viewFields;

}

}

運行一個不包含任何Query Options的查詢。

得到如下結果，包含附件的記錄顯示1，不包含顯示0，即使包含多個附件，也只顯示1，這個值更像表示當前的記錄是否包含附件。

<rs:data ItemCount="3" xmlns:rs="urn:schemas-microsoft-com:rowset">

<z:row ows_Title="Test01" ows_Attachments="1" ows_Author="1;#Qin, Lei (Lambert, ES-Apps-GD-China-SH)" ows_Editor="1;#Qin, Lei (Lambert, ES-Apps-GD-China-SH)" ows_MetaInfo="1;#" ows__ModerationStatus="0" ows__Level="1" ows_ID="1" ows_UniqueId="1;#{E1F2046C-16AC-4650-8EE3-73E12ED5E833}" ows_owshiddenversion="2" ows_FSObjType="1;#0" ows_Created="2012-11-30 01:37:17" ows_PermMask="0x7fffffffffffffff" ows_Modified="2012-11-30 02:43:10" ows_FileRef="1;#teams/smetechcom/Lists/QueryOptionsDemo/1_.000" xmlns:z="#RowsetSchema" />

<z:row ows_Title="Test02" ows_Attachments="0" ows_Author="1;#Qin, Lei (Lambert, ES-Apps-GD-China-SH)" ows_Editor="1;#Qin, Lei (Lambert, ES-Apps-GD-China-SH)" ows_MetaInfo="2;#" ows__ModerationStatus="0" ows__Level="1" ows_ID="2" ows_UniqueId="2;#{DCDE833B-E69A-4C63-B9FE-0AE5938B3CDE}" ows_owshiddenversion="1" ows_FSObjType="2;#0" ows_Created="2012-11-30 02:48:12" ows_PermMask="0x7fffffffffffffff" ows_Modified="2012-11-30 02:48:12" ows_FileRef="2;#teams/smetechcom/Lists/QueryOptionsDemo/2_.000" xmlns:z="#RowsetSchema" />

<z:row ows_Title="Test03" ows_Attachments="1" ows_Author="1;#Qin, Lei (Lambert, ES-Apps-GD-China-SH)" ows_Editor="1;#Qin, Lei (Lambert, ES-Apps-GD-China-SH)" ows_MetaInfo="3;#" ows__ModerationStatus="0" ows__Level="1" ows_ID="3" ows_UniqueId="3;#{74218240-4455-4FCA-AE83-5B966DF6F484}" ows_owshiddenversion="2" ows_FSObjType="3;#0" ows_Created="2012-11-30 03:04:00" ows_PermMask="0x7fffffffffffffff" ows_Modified="2012-11-30 03:04:45" ows_FileRef="3;#teams/smetechcom/Lists/QueryOptionsDemo/3_.000" xmlns:z="#RowsetSchema" />

</rs:data>

 

如果需要知道附件的URL呢？

一種方式是，使用Lists.GetAttachmentCollection方法，通過傳入列表名和列表記錄ID來查詢。

另外也就是可以指定Query Options：IncludeAttachmentUrls來進行查詢了。

修改Query Options包含附件。

static XmlNode QueryOptions

{

get

{

 

XmlElement queryOptions = _camlDoc.CreateElement("QueryOptions");

queryOptions.InnerXml = "<IncludeAttachmentUrls>True</IncludeAttachmentUrls>";

return queryOptions;

}

}

運行一下，可以發現，如果沒有附件，結果仍然是0。如果有附件，附件完整的URL就會顯示出來了。首尾都有一個;#，多個附件以分隔;#。

<rs:data ItemCount="3" xmlns:rs="urn:schemas-microsoft-com:rowset">

<z:row ows_Title="Test01" ows_Attachments=";#http://ent191.sharepoint.hp.com/teams/smetechcom/Lists/QueryOptionsDemo/Attachments/1/test.xlsx;#" ows_Author="1;#Qin, Lei (Lambert, ES-Apps-GD-China-SH)" ows_Editor="1;#Qin, Lei (Lambert, ES-Apps-GD-China-SH)" ows_MetaInfo="1;#" ows__ModerationStatus="0" ows__Level="1" ows_ID="1" ows_UniqueId="1;#{E1F2046C-16AC-4650-8EE3-73E12ED5E833}" ows_owshiddenversion="2" ows_FSObjType="1;#0" ows_Created="2012-11-30 01:37:17" ows_PermMask="0x7fffffffffffffff" ows_Modified="2012-11-30 02:43:10" ows_FileRef="1;#teams/smetechcom/Lists/QueryOptionsDemo/1_.000" xmlns:z="#RowsetSchema" />

<z:row ows_Title="Test02" ows_Attachments="0" ows_Author="1;#Qin, Lei (Lambert, ES-Apps-GD-China-SH)" ows_Editor="1;#Qin, Lei (Lambert, ES-Apps-GD-China-SH)" ows_MetaInfo="2;#" ows__ModerationStatus="0" ows__Level="1" ows_ID="2" ows_UniqueId="2;#{DCDE833B-E69A-4C63-B9FE-0AE5938B3CDE}" ows_owshiddenversion="1" ows_FSObjType="2;#0" ows_Created="2012-11-30 02:48:12" ows_PermMask="0x7fffffffffffffff" ows_Modified="2012-11-30 02:48:12" ows_FileRef="2;#teams/smetechcom/Lists/QueryOptionsDemo/2_.000" xmlns:z="#RowsetSchema" />

<z:row ows_Title="Test03" ows_Attachments=";#http://ent191.sharepoint.hp.com/teams/smetechcom/Lists/QueryOptionsDemo/Attachments/3/test.xlsx;#http://ent191.sharepoint.hp.com/teams/smetechcom/Lists/QueryOptionsDemo/Attachments/3/test1.xlsx;#" ows_Author="1;#Qin, Lei (Lambert, ES-Apps-GD-China-SH)" ows_Editor="1;#Qin, Lei (Lambert, ES-Apps-GD-China-SH)" ows_MetaInfo="3;#" ows__ModerationStatus="0" ows__Level="1" ows_ID="3" ows_UniqueId="3;#{74218240-4455-4FCA-AE83-5B966DF6F484}" ows_owshiddenversion="2" ows_FSObjType="3;#0" ows_Created="2012-11-30 03:04:00" ows_PermMask="0x7fffffffffffffff" ows_Modified="2012-11-30 03:04:45" ows_FileRef="3;#teams/smetechcom/Lists/QueryOptionsDemo/3_.000" xmlns:z="#RowsetSchema" />

</rs:data>