sharepoint各种字段类型如何读取以及赋值...

一：读取值

using (SPSite site = new SPSite("http://localhost/")){    using (SPWeb web = site.OpenWeb())    {         DataTable dt = new DataTable();         //创建table列省略          SPList list = web.Lists["AlertMailTest"];         foreach (SPListItem item in list.Items)         {             DataRow dr = dt.NewRow();             //Text 类型               dr["Title"] = item["Title"];             dr["Status"] = item["Status"];             //Date 类型               dr["EmailAlertDate"] = item["EmailAlertDate"];             //Hyperlink or Picture 类型               SPFieldUrlValue emailTo = new SPFieldUrlValue(item["EmailTo"].ToString());             dr["EmailTo"] = emailTo.Description;             SPFieldUrlValue emailCC = new SPFieldUrlValue(item["EmailCC"].ToString());             dr["EmailCC"] = emailCC.Description;             //LookUp 类型               SPFieldLookupValue company = new SPFieldLookupValue(item["Company"] == null ? "" : item["Company"].ToString());             dr["Company"] = company.LookupValue;             //Choice 类型               SPFieldChoice choice = (SPFieldChoice)item.Fields.GetField("Choice");             dr["Choice"] = choice.GetFieldValueAsText(item["Choice"]);             //Person or Group 类型               SPFieldUser user = (SPFieldUser)item.Fields["Group"];             SPFieldUserValue userValue = (SPFieldUserValue)user.GetFieldValue(item["Group"]==null ? "" :item["Group"].ToString());             if (userValue!=null)             {                 dr["Group"] = userValue.LookupValue;             }             //多行文本             SPFieldMultiLineText multilineField = item.Fields.GetField("Contract No.") as SPFieldMultiLineText;             if (multilineField != null)             {                 string html = multilineField.GetFieldValueAsHtml(item["Contract No."], item);                 string text = multilineField.GetFieldValueAsText(item["Contract No."]);             }              dt.Rows.Add(dr);         }         this.gv_Data.DataSource = dt;     }}

 

二：赋值