原创地址:http://www.cnblogs.com/jfzhu/archive/2013/02/15/2913077.html
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我在以前的文章中讲过如何用JScript读取web resource资源,我在本文中将要讲解如何在C#中获取web resource资源。
有时候可能有这样的需求,你需要在一个插件中读取某个xml web resource的内容,并将该xml文件作为附件创建一封E-mail。或者该xml文档是插件的一个配置文件。这时,你就需要在C#中获取web resource资源了。CRM中web resource不过是一个特殊的entity,在数据库中你也可以看到web resource table。web resource的内容(content)以Base64编码保存在数据库中(参见Base 64 Encoding 编码)。你只需要知道web resource的name,然后就可以用RetrieveMultiple方法获取该web resource。下面的代码演示了,如何获取一个名为aw_testxml.xml的web resource,并将其内容作为附件发送给一封E-mail。
// Create an e-mail message. // Create the 'From:' activity party for the email ActivityParty fromParty = new ActivityParty { PartyId = new EntityReference(SystemUser.EntityLogicalName, new Guid("F6F5BB29-D519-E211-B109-B499BAFDBEDA")) }; // Create the 'To:' activity party for the email ActivityParty toParty = new ActivityParty { PartyId = new EntityReference(SystemUser.EntityLogicalName, new Guid("F6F5BB29-D519-E211-B109-B499BAFDBEDA")) }; Email email = new Email { To = new ActivityParty[] { toParty }, From = new ActivityParty[] { fromParty }, Subject = "SDK Sample e-mail", Description = "SDK Sample for SendEmail Message.", DirectionCode = true }; Guid _emailId = service.Create(email); QueryExpression mySavedQuery = new QueryExpression { ColumnSet = new ColumnSet(true), EntityName = WebResource.EntityLogicalName, Criteria = new FilterExpression() { Conditions = { new ConditionExpression { AttributeName = "name", Operator = ConditionOperator.Equal, Values = {"aw_testxml.xml"} } } } }; EntityCollection ec = service.RetrieveMultiple(mySavedQuery); if (ec != null && ec.Entities != null && ec.Entities.Count > 0) { WebResource webresource = ec.Entities[0].ToEntity<WebResource>(); ActivityMimeAttachment _sampleAttachment = new ActivityMimeAttachment { ObjectId = new EntityReference(Email.EntityLogicalName, _emailId), ObjectTypeCode = Email.EntityLogicalName, Subject = "Sample Attachment", Body = webresource.Content, FileName = "ExampleAttachment.xml" }; service.Create(_sampleAttachment); }